Search Results: "pm"

24 August 2026

Freexian Collaborators: Monthly report about Debian Long Term Support, July 2026 (by Santiago Ruano Rinc n)

The Debian LTS Team, funded by Freexian s Debian LTS offering, is pleased to report its activities for July.

Activity summary During the month of July, 23 contributors have been paid to work on Debian LTS (links to individual contributor reports are located below). The team released 52 DLAs fixing 2159 CVEs. In July, the Debian Stable Release Managers published the last point release of Debian 12 ( bookworm ), after which the Debian LTS team took full responsibility of Debian 12. This completes the handover from the Security Team, that took place in June. This also marks the second month in a row where the Debian LTS has been focusing on two simultaneous Debian releases. Other than Debian 12, the team is maintaining Debian 11 ( bullseye ), which will reach the end of its Long Term Support on 31 August 2026. After that date, Freexian will continue the security support under the Extended LTS offer. The team published several notable updates:
  • jq (DLA 4662-1 and DLA 4661-1) prepared by Andreas Henriksson in collaboration with Jochen Sprickerhof, addressing multiple vulnerabilities.
  • Several updates for the different linux supported versions prepared by Ben Hutchings, in collaboration with Emilio Pozuelo Monfort. Other than the regular security advisories: DLA 4664-1, DLA 4665-1, DLA 4671-1, DLA 4688-1, and DLA 4700-1, Ben started preparing packages of 6.12 via bookworm-backports.
  • nginx (DLA 4667-1), updated for bookworm by Carlos Henrique Lima Melara, as a follow up of the bullseye update (DLA 4660-1), that was prepared in June.
  • grub2/bullseye (DLA 4685-1), prepared by Emilio. Other than addressing several security issues, this DLA was needed for being able to update the shim boot loader.
  • samba (DLA 4692-1), uploaded by Markus Koschany, to fix several security flaws in bullseye, including issues that could yield to remote code execution.
  • imagemagick (DLA 4680-1 and DLA 4696-1), prepared by Bastien Roucari s, addressing several issues that could lead to denial of service, information disclosure or potentially arbitrary code execution in some scenarios.
  • poppler (DLA 4709-1), by Guilhem Moulin, fixing several vulnerabilities.
  • nss (DLA-4694-1), by Jochen, fixing flaws that may result in or denial of service or potentially the execution of arbitrary code.
Contributions from outside the LTS Team: The LTS Team has also contributed with updates to the latest Debian releases:
  • Bastien also proposed two updates for imagemagick. The first one released as DSA 6383-1, and the second as a trixie point update proposal (#1142554).
  • python-httplib2 by Emmanuel Arias, and released by the security team as DSA 6441-1 in August.
  • hplip (DSA 6402-1), prepared by Thorsten Alteholz, to address privilege escalation and arbitrary code execution related flaws.
  • libnfs trixie update (#1142351), by Thorsten
  • patool update for trixie #1141607, by Abhijith PA
Other contributions: Besides the work on security updates, different documentation and tooling changes were needed, especially in the context of the Debian 12 handover. This work was mainly done by Sylvain Beucler.

Individual Debian LTS contributor reports

Thanks to our sponsors Sponsors that joined recently are in bold.

23 August 2026

Sergio Cipriano: Two Debian Days in one week

Two Debian Days in one week The Debian Project was officially founded by Ian Murdock on August 16, 1993. The Debian community celebrates its birthday, Debian Day, on or around this date every year. This year, I had the chance to attend two of them: one in Jo o Pessoa, Para ba, and another in Bras lia, the capital of Brazil.

Jo o Pessoa Debian Day Jo o Pessoa Group Photo In Jo o Pessoa, we had a two-day event. The first day was dedicated entirely to workshops, and I ran a packaging workshop for newcomers. It was the first time I had been responsible for a workshop, and it was a great experience. We didn't have a lot of time, so I decided to start with a 30-minute talk explaining a few things about Debian. For example, I made this image to explain the packaging workflow: Debian upload workflow This image was based on The Debian Administrator's Handbook, and I think the participants really enjoyed learning about this workflow. When I showed the slide with this image, it was the moment when I received the most questions. After the talk, I explained my way of working and what they were going to do. The hardest part was setting up the environment, since my approach uses sbuild + gbp. They were running different Debian releases and, because of my inexperience with workshops, I had some of them configure sbuild with unshare, even though it is only available in stable through backports. Some of them even managed to learn how to use backports, while others decided to start again using the "old" way. One thing that helped a lot was the Debian Brasil Wiki. It has all the instructions for configuring sbuild in Portuguese, along with great examples. The Brazilian wiki is an opinionated version of the Debian Wiki. We generally prefer to use it for the convenience of having the exact workflow we follow, as well as an up-to-date Portuguese version of our process. If you want to learn more about the Brazilian community, you can find more details in the schedules from previous DebConfs. We almost always had a talk about the community and its activities. In the end, everyone successfully set up their development environment, and all six participants made their first contribution to Debian. If you take a look at my upload tracking page, you will see that every upload made on August 15, 2026 was a sponsored upload from this event. One of them appear twice in the list because I sponsored the upload and also made some other changes. I also asked all of them to put this in their changelog:
* My first contribution!
The idea was to make it clear to other people that they were only working on small Lintian issues as a way of learning and understanding the process. By the way, I made a UDD query to find packages with the following Lintian tag: redundant-rules-requires-root-no-field. To fix this issue, they only had to remove one line from the debian/control file. It is obvious that these uploads are not particularly useful. I call them "motivational uploads" because my goal is to help newcomers understand the process and immediately give them the reward of having made a contribution to Debian. I'll try to keep in touch with them. My plan is to hold another session, this time remotetly, to help them continue contributing to Debian. In fact, I already have another package prepared by one of them waiting for my review. The second day was a full-day event featuring a bunch of talks from the local community. I gave a talk explaining the new members process. I was the only Debian Developer at the event, and I think having a DD there made a real difference. Being there to answer questions, and simply being present, makes Debian feel more tangible and accessible to people. A big shout-out to Rafael Rocha, who put in a lot of work to make this event happen, with the help of many volunteers who contributed along the way.

Bras lia Debian Day talk in Bras lia One thing I really like about Debian Days is that each place has its own way of doing things. In Jo o Pessoa, we had a MiniDebConf-like event, while in Bras lia, we had something smaller but still very valuable. We decided to keep things simple: talk to a few students at the University of Bras lia (UnB) and then go somewhere to eat and have a few drinks.

A bit of history For those who don't know, the DebConf 19 was held in Curitiba, Brazil. After the event, Arthur Diniz got really excited about Debian and decided to go back to his University, UnB, to share his experience and encourage more people to contribute to Debian. I attended one of his talks, thanks to Joenio Costa, who invited Arthur to give the talk. Joenio was also my professor at the time and a Debian contributor. I really liked what Arthur had to say about free software, and he did a great job of presenting the Debian community as a friendly and welcoming place. So I decided to attend local meetings of the Debian Bras lia community, which had been inactive for a long time. Lucas Kanashiro was the Debian Developer who answered our questions and, as I mentioned earlier, simply being there made Debian feel more tangible. Everything stopped when the pandemic began. Then, towards the end of 2020, I saw a message in the Debian Bras lia channel saying that the meetings were back, this time remotely. I was hesitant to join because, back in 2019, I hadn't managed to make a packaging contribution, even with their help. I had eventually given up on the process. So this time, I decided to join the meeting with something already prepared for review. I watched all of Eriberto's packaging videos, picked a random package, and joined the meeting. I remember Kanashiro being excited that someone had just shown up with something ready for review. At the time, it was only the second meeting since Debian Bras lia had come back online, and none of the newcomers had started working on contributions yet. During the same meeting, he also convinced us, the newcomers, to give a talk about Debian just three days later. The MiniDebConf Online Brazil 2020 was happening on Sunday, and the meeting was on the Thursday before it. Since he has great convincing skills, I went along with the idea and prepared the talk with Francisco Ferreira. That was the rebirth of the Debian Bras lia community. Since then, we have maintained a close connection with the University of Bras lia, and today, at least seven Debian Developers are from UnB, whether as former students or former professors. The reason I told this story is that, even though the Debian Day we held in Bras lia was smaller, it is part of something that has been working for us for several years: staying close to an University. We've managed to attract and retain many people who share the same values and interests. I've hope you all had a great Debian Day. If you're reading this and aren't part of the Debian community but would like to join, get in touch!

22 August 2026

Aigars Mahinovs: Optimistic take on AI

As I am writing this, there is a vote ongoing in the Debian project on how to deal with AI in general and AI-assisted contributions to Debian specifically. Massive discussions have happened in debian-vote and other locations. I have also asked questions there and offered my perspective. IMHO now is the time to summarize that, after all the discussions that I've had with people on multiple sides of this debate both online and offline, and explain how I will be voting and why. Hopefully that will be helpful to someone else as well. None of this has been compiled with AI assistance, but only because I think that forming opinions is not something where AI can really be helpful. Spellcheck was used though. So, first I will describe how I see each of the 8 proposals, then what my vote will be, and then a bit more detail on the reasoning and thinking behind this. WARNING - this went long. With all the above considered I will vote like this (earlier options are preferred over later options): Details on rationale Hypocrisy - I find any proposal that would ban AI-assisted contributions to Debian, but at the same time not ban including AI-assisted contributions from upstream projects to be inherently hypocritical. If LLMs and AI are the very incarnation of evil (a puppy-killing machine, as the analogy went in some emails), then any rational proposal would involve excluding any and ALL code contaminated by this evil from the project. What does it matter if puppies were killed in writing the debian subfolder of the source code or the src subfolder? No proposals went there because everyone knows that such a ban would be the death of the relevance of the project for the future. Debian would be frozen on some old version of the Linux kernel forever and other software would be falling to the same problem too, for example as projects on GitHub start enabling AI-supported reviews with patch suggestions. Soon the "development" of Debian could just be stopped as there is nothing to develop without any upstreams. Assumptions - a lot of proposals mention various "concerns" with at most one word, like "practical" or "community" without an explanation of what exactly they mean by that. The proposers assumed that everyone lives in the same info bubble as they do and already know everything that they mean and already agree to that. That is false. Proposal A was a positive stand-out in this area. Debian has contributors all over the world with very different exposure to different information sources and very different world views. If you want to convince the project as a whole that LLMs are bad because of "ethics", then you do really need to explain what you mean by that and give links to sources, at least as well as Proposal A did. All other proposals were really weak in this area. Copyright - the question on how copyright law interacts with training LLMs and their outputs is still not settled law. The closest legal statements we have so far are that - just because an LLM is trained on copyrighted material does not make that LLM itself be a derivative work of the training data (you, however, cannot just create and distribute a "library" of copyrighted materials just because you plan to train LLMs on it). The output of the LLM might not be subject to copyright law at all, like a photo taken by a monkey. It would then be public domain and thus can be modified and then licensed by the user of the LLM. It might also be a derived work of the context of the inference (so for software - if you refactor a GPL project, the refactoring itself is likely GPL too). Any stricter interpretations would break a lot of existing copyright doctrine, such as raising questions like: "does the output of any programmer now become a derived work of the programming manual books they read in college?". In any case it is really not up to Debian to legislate the nuances of copyright law. And I strongly disagree with the concept that an author can tell me how I am allowed to use the learnings that I gained by reading their work. That is not how either copyright or society works. I can look at 10 pictures of a sunset and draw my own, inspired by the ones I saw. No one can forbid me that expression. The same must be true for a machine learning and replicating patterns. Ethics - I've re-read all proposals and emails and the only real specifically ethical concern I could find was the complaint that some LLMs (or their training farms) are running their web scrapers too aggressively and that causes extra load on services. Like that is not an LLM problem. Scraping the web is not an inherent part of the LLM training or inference process. It's just a few misconfigured scripts. We saw the exact same thing in the early days of web search engine proliferation. Then we banned/blocked the misconfigured engines and the survivors learned that obeying robots.txt is one of the rules for surviving. Literally the exact same problem and it will be solved the same way. Did we ban all search engines back then just because some of them were misconfigured? No. Some claims (like in Proposal C) are just bombastic hyperbole ("hazards to users' mental health", "fraud", ...) and on top of that have zero relevance to the topic at hand - AI-assisted contributions to Debian. What "hazard to users' mental health" is created when a Coderabbit spots that a lock is not taken before accessing a resource in a particular function and suggests an AI-generated patch to fix it? What "fraud" is committed by this? There is no sane answer. I get that some people are very busy fighting some culture wars and sometimes, some AI-bros happen to be on the other side of one such war, so it is useful to label everything coming from the AI sphere as "bad" in all possible and impossible ways. You do you. In private. Why pull Debian into that? Why force your position on everyone else in the project? Why deny everyone in the project access to useful tooling, just because you have strong feelings about some of the people promoting some of those tools? This seems to me a repeating pattern here - blaming the technology as a whole or blaming all providers of this type of technology for failings (ethical or technical) of some of those providers. Like refusing to wear all shoes and condemning all shoemakers and sellers, just because some American billionaires figured out a way to make and sell cheap shoes by killing puppies. Not refusing and condemning those providers, but condemning all for the actions of a few. Resource usage - this is a big topic for many and it has reasonable points to it. The LLM and AI technology has no inherent need to be damaging to the environment in any way for it to function. It does not need to burn oil or dig up cobalt. It does not need to sacrifice a ton of water to the Gods. It is perfectly possible to run AI (both inference and training) purely from green, electrical energy and cool data centers in equally sustainable ways, like with simple air-source heat pumps (also known as air conditioning) or even use it beneficially (many data centers are used for heating surrounding buildings via district heating). However, some AI companies do use non-green power for their data centers, some do use locally-limited fresh water for evaporative cooling (evaporated water still rains down as rain, it is not really lost, but that may happen in another location so lack of water can still happen locally). Some even run unlicensed natural gas turbines in their data centers to provide them with power. And those specific providers can and should be shunned and condemned. Not the other ones, who are doing the right things. Not the technology or its users or its outputs. There is a very wide spectrum of options on how an AI system could be powered: starting from local execution on already existing private hardware powered by one's own local solar power (good), to a data center stuffed with borrowed AI-only cards powered by a gas turbine or coal power station that operates solely to supply this data center (bad). Proposals that talk about ecological impact, but do not even consider where on that (very wide) spectrum to draw the line between "good", "acceptable", "discouraged" and "bad" well, I cannot see those proposals being actually serious about the environment to begin with. It feels like they just refer to it for points. And if we go into the power question deeper, well the grid dynamics and economics become very, very complex and often also non-intuitive. Like, all large software companies with data centers (that also happen to provide AI services), like Google, Meta, Apple, Microsoft and others do actually care about sustainability (in part because their customers care and vote with their wallets) and so all of them use 100% green energy for their data centers (including AI data centers) .... "on an annual scale". Wait, what does that mean? Well, the electrical grid is special - the amount of electricity produced and consumed on the whole electrical grid together has to match almost exactly every second. If there is just a single second where there is significantly more energy consumed from the grid than is produced, the frequency will plummet and you get a brownout and risk a grid collapse. The same is true in reverse - that causes a voltage swell. So grid operators manage energy flows every second and command power stations to increase and decrease generation all the time. Some power stations are easier to regulate dynamically than others. In the end, all that means is that even if your data center has a contract for 100% green energy with your power company, at some seconds across the year there might not be enough green energy in the grid to fully supply ALL people and companies that have 100% green energy contracts. This gets compensated in other seconds, so that across the year ("on an annual scale") for each kWh that your data center pulled from the grid, the same amount of kWh of 100% green energy flows into the grid. But it might not happen at the exact same second. Pedantic companies, like Google, take that discrepancy and count that as CO2 emissions for themselves. And then they and the power companies (they have contracts with) invest billions into new green energy projects, better grids and better batteries so that eventually this discrepancy goes down to zero. In this way green AI data centers with their increasing consumption of green energy are actually doing a lot of good work in making our electrical grid more green. They are making more resources than they are consuming. And that is just the tip of the iceberg. This is a deep topic that really abhors generalizations like "more consumption = bad". I've heard similar discussions in the context of electric cars - "so you got an electric car? you'd have fewer emissions if you drove no car at all!". That might be so. And I would also reduce my emissions to zero if I stopped breathing, but I really do not want that kind of thinking to be propagated further, especially when impressionable young people are around who may take it to its logical (but wrong!) conclusion. Instead I talk about how early adopters use electric cars to gather experience and achieve volume to start the network effects working. Once network effects of many electric cars on the roads are sufficient, it becomes an economically logical choice to get an electric car. People who cannot avoid having a car start to switch over. And at the point of mass switchover the reduction of emissions is so massive that those early adopters failing to go all the way to riding a bicycle becomes a rounding error. But surely that does not apply to LLMs? They are only increasing consumption and bring no benefit? Benefit - and here we have to actually talk about benefits. Because you cannot make any cost-benefit analysis if you do not actually fully investigate the benefits. Are there environmental benefits from running those AI models? Yes, in a lot of very diverse ways. Hard to measure, however. There are projects that are easy to quantify - like that Google AI project on contrail avoidance. An advanced, special model trained and executed in Google AI data centers was able to predict where in the air contrails would be produced and could generate proposed course adjustments to commercial flights to avoid specific heights in specific locations at specific times. This stopped these aircraft from creating contrails and those contrails did not make a further contribution to global warming. That benefit in a year was many times higher than the environmental cost of training and running that AI model. And it can keep running for many years accumulating further benefits. On a personal scale, I've had problems that I bashed my head (and computer and CI resources) against without much success years ago solved with a few minutes of compute. Having a good enough candidate solution quickly is much cheaper from a resource perspective than spending days trying different things, running my PC for it, trying different patches on CI executions, doing different rebuilds. I've seen very significant benefits in AI-assisted development in enterprise environments where code way more complex than what is in Debian (especially in Debian tools and packaging) gets analysed, reviewed, modified or even refactored or rewritten in another language with AI assistance. And it generally works. The commonly mentioned "hallucinations" are a thing of last year in the coding context. Nowadays the AIs work in special coding harnesses and use real tools as foundational facts. You cannot "hallucinate" an API call or parameter if you have to run and pass the unit tests and integration tests by your harness before you can return "success" to the caller. I've personally seen high-level AI models read very complex software projects across multiple repositories and point out a very specific design consideration that was encoded in the code logic, but never mentioned in comments or documentation. It was so obscure that even I did not immediately know what it was talking about (and I wrote that code). Only on close inspection of code interaction across three repos did I remember that there was indeed that bug 2 years ago that I fixed by doing the change that this AI picked up (it wasn't in the history of this git repo due to repo migration). It mentioned this because it was very relevant to the task I initially gave it to review. These LLMs in a proper harness with proper system instructions and usage approach are not just fancy spell checkers or auto-complete. They function more like very advanced pattern matchers. They have learned millions of patterns from training data. When they look at the code, they see hundreds or thousands of overlapping patterns. When you ask them to make or change something, they pull out a pattern (or ten) from their training and apply those patterns to the context of your program. You get something that looks just like the surrounding code, same style choices, same language, same comment voice, but it implements something new there, based on other patterns learned. If you've studied design patterns in your CS class, this will be familiar. But people can learn and remember maybe 20-30 patterns, while an LLM can have a million patterns and can combine them when needed. So it takes a pattern of Python code, pattern of standalone script, pattern of parsing command line parameters, pattern of classes, pattern for background threads, pattern for file tree traversing, pattern for pipes, ... and squishes them together to make a solution for your query. And then tries to debug it with compilation, tests and execution until it works as expected. Even if there is zero LLM development going forward, it will take many years to fully appreciate the benefits we can extract from the already trained models. They don't even have to be retrained - for existing languages they just keep working. For new language variations, like a new Python version, you can feed the changelog into context and they will be able to work with a Python version that they never saw in training. And patterns are mostly abstract, so not really specific to any language - human or programming. This is another big enabler that LLMs have created that we have not really explored yet. LLMs have created really free software. People can actually create software that is perfectly suited just for them and no one else. They don't even have to know how to program and don't even need to speak English. I've seen people writing prompts in their native language and LLMs creating and then adjusting web apps or Android/iPhone apps and deploying them to the user's own phone. It was too buggy to work last year, but this year it is actually very functional for simpler use-cases. And the code looks just fine too - I've seen external contractors in a business setting deliver far worse. If you start with a good initial system prompt, the project will have architecture documentation, use-case documentation, unit tests, integration tests, deployment harness, testing and production deployments, audit logs, monitoring, clear git commits, CI validation on commit, ... Modern AI systems have the capabilty to deliver software freedom to people who are not coders. I really can not overstate the consequences this may have on the world. Community - I find the concerns that new people will be using LLMs so much that they will no longer be understanding the actual code they are contributing a bit regressive. I don't see any significant difference between this and people relying on compilers, on high-level languages or on debhelper. Writing modern debhelper packaging feels more like writing configuration and not writing code. It takes really significant effort to dig down through layers of abstraction to find what actually is being executed in debian/rules. AI does not really make this worse. In fact, I find that AI can make it much easier to understand arcane syntax because you can ask an LLM to explain what is happening in any part of the code and it will do a pretty good job of it, digging down through the layers of abstraction for you. All the pro-AI proposals include the requirement that each human contributor needs to understand and stand behind their AI-assisted contribution and I believe that is a good requirement and also a sufficient requirement. Modern LLMs not only produce clear and concise code, but they are also capable of producing good comments explaining why the code is how it is, good commit messages explaining the change and reason behind it and also making corresponding changes to test suites and documentation. You know - the housekeeping stuff that is often skipped because it slows down the actual feature development, but then its lack becomes a problem for future contributors. Responsible use of AI assistance is a great chance to actually strengthen our community and make our software easier to maintain. That said, I have no qualms about flat-out rejecting contributions that do not make sense. And it does not matter if they are made with or without AI assistance. If the contributor will not explain their patch, it might be they do not understand what their AI produced or it could be that the contribution is deliberately hiding a backdoor being planted. It is also quite common for a contribution of a new feature to be rejected because the author/maintainer does not believe that it is a good fit for the project. Featuritis is a real disease. AI or not. There have always been drive-by contributions to various projects. They will continue to exist. Each of them should be evaluated on its merits - is this feature valuable to our users and is the added complexity (if any) worth the functionality? A lot of security bug reports are "drive-by" contributions as well. And many of them nowadays are discovered, exploited and patched with AI assistance. We could reject them, but that just leaves us holding the bag on the now-known exploits. And the New Maintainer process should be able to figure out if an upcoming Developer has actually understood the nuances of Debian packaging or not. A contributor with upload rights to the archive has to be able to create a basic package with no support tooling (maybe even without using debhelper?) and be able to understand and modify more complex packages (possibly with tooling support). IMHO that is a separate discussion that is worth having, involving experts from the educational sector. Conclusion IMHO the Debian project should not restrict what tooling individual contributors use to contribute. Expecting high-quality contributions and that contributors understand what they are contributing (as a first level of review) is enough. However, Debian should provide its contributors (internal or external) with guidance on how to contribute in the best way possible. That could include: In addition to that it would be helpful for Debian, as a project, to reach out to AI service providers to: Questions? Feedback? Just ask here or here.

Emmanuel Kasper: Create a development VM using Debian cloud images

Following on the rationale of the previous post, here is how I create a development VM based on ready to use disk images made by the debian cloud team. I could as well install the VM myself using an ISO, but why download a collection of packages in a ISO only to copy them right onto a disk image ? From the list of images available at https://cloud.debian.org/images/cloud/ we will start with the generic qcow2 disk image, it has cloud-init, which allows initial automatic configuration, and snapshots of the VM via the qcow2 disk format. As for the virtualization, I am using virsh virt-install and virt-manager, which are part of the libvirt framework. Libvirt offers an excellent API accessible over qemu/KVM via shell (virsh), GUI (virt-manager) and Web (cockpit) . To use libvirt, properly you need to make sure your standard user is member of the libvirt group, and the libvirt default network is started via virsh net-autostart default. Also make sure you set export LIBVIRT_DEFAULT_URI=qemu:///system to use the system wide instance of libvirt, which is needed for the default bridged networking. Download the debian cloud image:
$ wget https://cloud.debian.org/images/cloud/trixie/daily/latest/debian-13-generic-amd64-daily.qcow2
Add the disk image as a libvirt volume:
$ export SIZE=$(stat -Lc%s debian-13-generic-amd64-daily.qcow2)
$ virsh vol-create-as default dev-vm $SIZE --format qcow2
$ virsh vol-upload --pool default dev-vm debian-13-generic-amd64-daily.qcow2
Create a VM with the root password set to root :
$ echo root > password.txt
$ virt-install --name dev-vm --memory 4096 --noreboot \
	--os-variant detect=on,name=linux2024 \
	--disk vol=default/dev-vm \
	--import \
	--boot uefi \
	--cloud-init root-password-file=password.txt,clouduser-ssh-key=$HOME/.ssh/.ssh/id_ed25519,disable=on
At the point libvirt will create a VM (a domain in libvirt parlance) and start it.
Starting install...
Allocating 'virtinst-ns9oa7_i-cloudinit.iso'                  368 kB  00:00     
Transferring 'virtinst-ns9oa7_i-cloudinit.iso'                368 kB  00:00     
Creating domain...                                                    00:00     
Connected to domain 'dev-vm'
BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0)
Booting  Debian GNU/Linux'
Loading Linux 6.12.101+deb13-amd64 ...
Loading initial ramdisk ...
EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
EFI stub: UEFI Secure Boot is enabled.
[    0.000000] Linux version 6.12.101+deb13-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.101-1 (2026-08-05)
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.12.101+deb13-amd64 root=PARTUUID=2b4578e2-9d2e-4b32-b6a4-b5b2ca607ef6 ro console=tty0 console=ttyS0,115200 earlyprintk=ttyS0,115200 consoleblank=0
...
Once the VM is created you have now three ways to access it:
# open a serial console to the VM
$ virsh console dev-vm
# access the graphical console
$ virt-manager
# Access the VM via SSH with the precreated cloud user "debian"
$ virsh domifaddr dev-vm
 Name       MAC address          Protocol     Address
-------------------------------------------------------------------------------
 vnet7      52:54:00:23:e6:61    ipv4         192.168.122.225/24
$ ssh debian@192.168.122.225
In the next blog post we will see how to configure the IDE (vscodium) to run confortably in the VM.

21 August 2026

Emmanuel Kasper: Moving software development to separate VM to reduce credential scavenging

Rationale: I was remembered via https://unit42.paloaltonetworks.com/chaindrop-npm-worm-analysis/ (linked from https://anarc.at/blog/2026-08-18-people-vs-ai-overlords/) of the risk of downloading untrusted packages in a dev environment. If you read the blog post above you will see that it is way to easy do have a random npm, or even python package in a dev environment scavenge your long running credentials from your workstation, either on disk, or reading from memory ! I will thus move to the following set up:
  • things running directly in my workstation will require either to come from a trusted source (Debian package that is) or run in a sandboxed infrastructure (Podman rootless is the best thing here, followed by Flatpaks)
  • everything else, will run in a Libvirt VM based on Debian cloud images. For me it will be mostly in the beginning the VSCodium editor, with its myriad of extensions.
I am aware of whole blown solutions like QubeOS however I don t indent to reinstall the whole OS, and QubeOS does not run on ARM64 which is one of the environment I am using. I will try to document this setup in two blog posts, one about the VM creation using Debian Cloud Images, the second one about running a graphical env in the VM with some filesystem passthrough. Stay tuned !

19 August 2026

Sergio Cipriano: My experience at DebConf 2026 in Santa F

My experience at DebConf 2026 in Santa F The Official DebConf26 Group Photo Last month, I attended DebConf 2026 in Santa F , which was my 5th DebConf. As always, it was an amazing experience, and I met a lot of great people there. For those unfamiliar with the event, it takes place over the course of two weeks. The first week is called DebCamp and is geared more towards hacking and organizing the event itself, while also offering a great opportunity to discuss ideas with others. The second week is the DebConf. We still have the hacklabs, but the talks and workshops are the main focus.

My Activities during DebCamp My main activity was working on the python-click transition that I started in May. There were only a few packages left, and with the help of Guilherme Puida, we managed to work through all the remaining bugs. I plan to talk in details about this transition in another blog post, where I will focus on the tools I used and my experience with mass rebuilds and mass bug filing. I also helped with de Golang Sprint. I worked on a few packages and experimented with the dak API to generate a list of packages that needed manual action. There was a lot of manual, repetitive work and false positives, so I eventually moved on to some other, more fun stuff. I also learned a few thinks about kernel live patching while talking to David Tadokoro. I had to work on the Ubuntu Kernel package recently as part of my job, so we exchanged some ideas, and the conversation was really helpful. He also taught me two commands that I wasn't familiar with, since I'm a newbie in kernel development. Here are the commands:
$ b4 am https://lore.kernel.org/lkml/20240730071904.1047-1-sergiosacj@riseup.net/
$ b4 diff *mbox
By the way, this is the first and only patch I have submitted to the Linux Kernel. I worked on it during DebConf 2024, when I attended the workshop Helen Koike runs to help newcomers submit their first patch to the Linux Kernel. Another great interaction was with Marcos Talau. He showed me his remote access setup, which he is using to help students make contributions to Debian without the struggle of setting up the development environment. Another cool thing is that Puida showed me the command:
$ gbp clone vcs-git:typer
After that, I decided to read the gbp manpage because these little details really improve the overall experience. I also had many other amazing interactions. I just decided to write down the ones that I felt made the most sense for this kind of "blog report" post.

My Activities during DebConf I gave a talk about dh-make-vim, a tool I have been working on sporadically. An interesting detail is that one of the video team volunteers for the talk, Piotr, spoke to me about his tool, pypi2deb, which is similar but aimed at the Python ecosystem. There are many tools of this kind in Debian, and they are all interesting pieces of software. I plan to write more about them in the future. I attended several talks and participated in a few BoF sessions, and they were all great. But something that really stood out to me was the workshop on the Debian Installer, led by Alper Nebi Yasak. I didn't know anything about the Debian Installer, and I liked the way he approached the subject and showed the specific details. I'll take some time to read the Debian Installer internals documentation. I was not familiar with udebs or with the fact that the Debian Installer uses debconf under the hood.

Wrap up It was an amazing event. Unfortunatly, a lot of people I know were not able to attend for different reasons, and they were missed. There were many other things that I enjoyed during this trip. Here are a few more highlights:
  • World Cup matches
  • A day trip around Santa F
  • The Cheese & Wine party
  • Empanadas!!

Dirk Eddelbuettel: RcppMsgPack 0.2.5 on CRAN: Minor Maintenance

Another maintenance release of RcppMsgPack got onto CRAN today. MessagePack itself is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON. But it is faster and smaller. Small integers are encoded into a single byte, and typical short strings require only one extra byte in addition to the strings themselves. RcppMsgPack brings both the C++ headers of MessagePack as well as clever code (in both R and C++) Travers wrote to access MsgPack-encoded objects directly from R. This release is once again chiefly maintenance. Besides standard upkeep to the README.md and continuous integration setup we had to add one #include. The clang++-23 compiler, when also running with its own library, now now needs the type_traits.h header file (in the upstream MessagePack code) so we added that. No other changes, so no user-facing changes. Details follow from the NEWS file.

Changes in version 0.2.5 (2026-08-19)
  • Explicitly include header "type_traits.h" to appease clang++-23
  • Standard maintenance updating continuous integration, adding minor helper script, and updating README.md

Courtesy of my CRANberries, there is also a diffstat report for this release. For questions, suggestions, or issues please use the issue tracker at the GitHub repo.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. If you like this or other open-source work I do, you can now sponsor me at GitHub.

Antoine Beaupr : The people vs the AI overlords

Also in this series:
In a post to oss-security, my (Debian) co-developer Russ Allbery stated that "open source software [OSS] is coming face to face with a motivation crisis that has been building for a long time". His point is essentially that large language models (LLMs1) are making the existing OSS community crisis worse. For him, it's the flood of code reviews, but he argues that varies according to people's desires, for others it's security issues and so on. I think Russ is right, but I would argue there's something much bigger than our open communities going on here, and it's about the entire field of computing. This pressure is on all of us, regardless of whether we work on open source software or not.

How people use models People using LLMs in their workflow have radically changed how programming works, even for people who claim to avoid vibe-coding. And I'm sorry to single out one poor maintainer here: it's not you, Brian, you're just one example among many. But this is typical use of those models nowadays:
Once it s done, I ll use /code-review and let Claude spawn sub-agents to do a full review of the new code. This usually finds some problems, even problems that the main Claude instance didn t find during its validation. I usually keep running /code-review again and again after finding and fixing issues, until there aren t any left.
Think about what that means for a minute. This is automation built to fire up dozens of agents crunching at a problem for minutes if not hours of GPU compute time, in parallel. This is essentially a couple of shelves in a datacenter rack, totally maxed out on power and cooling, abstracted behind a cute little /code-review command. The author, here, is rightly concerned that "Anthropic could pull the rug out and require API pricing", which is perhaps a code word for "charging something closer to actual costs". Brian also pays lip service to environmental and societal costs but those are largely abstracted away, so let's keep that conversation aside here as well, as we have discussed it before anyways. But clearly, this way of working has an (externalized) cost, to say the least.

Paying for non-free tools For decades my work has been focused on free and open source software. I've long stopped using proprietary operating systems like Windows or Mac, and even before that switch, I was mostly using free software on those platforms, partly out of principle, but also because I was too poor. So the tools of my trade are free, and I build free tools with them. It feels like we're going backwards: when I was in school, a millennia ago, my classmates didn't have access to a compiler and were wondering how they would scrape the money to buy a compiler like Borland's or Microsoft's. I had a compiler built into my operating system (FreeBSD at the time), so that wasn't a problem for me. For them, it was a significant expense, but at least those expenses (or more shady sourcing of programs) were a one-shot deal. Fast forward 30 years, and software is rented: you pay monthly for Adobe's Photoshop and Microsoft's office suite just like you pay for Netflix, Disney+ or Spotify2. And now you need to add dozens (if not hundreds of dollars) of monthly credits to access LLMs on top of that. So, now we have to pay to get anything done? This is peak enshitification of our job: first they steal our work to train their models, and then they sell it back to us at a profit.

Attacking the engineers AI is coming for our jobs, as engineers, if not everyone, according to the narrative. For a while now, our job market has deteriorated: less jobs, for less pay. Lots of skilled engineers looking for work and finding crap jobs then still looking while working. This is not by accident.3 We engineers have a lot of power, it is not organized, but that's just a couple of unions away (easy!). Tech overlords know this, so they are attacking our profession, directly, by forcing us to train and use models that they can control. Even in environments where programmers are not forced to use LLMs, the mere pressure of other people's LLM-generated work is huge. One can be forced to review LLM outputs, or just peer pressured you into producing more. We're now supposed to accelerate delivery, because models can presumably do things so much better and faster. With supply chain security becoming such a large vector that we now have worms crawling around developers accounts on NPM, increasing the delivery cadence seems like a really bad idea.4 The LLM hype is part of the larger wave of cyberwar against workers, against water, against the Earth, against all the people. This is not a matter of individually "adapting to the reality" or personal choice, but a political, social, hard problem we need to address collectively.

  1. I again prefer the term LLM to "AI" because models do not possess intelligence. I did use it in the title because click baiting is apparently important, but I stopped short of calling this one "Rage Against the Machines" because that would be the title of every blog post I have ever made.
  2. Yes, I know that Visual Studio is kind of free now, but I wouldn't be surprised if they turn that into a rental as well, because why not.
  3. Beyond sabotaging the job market, Sam Altman event wants to sell "intelligence as a utility" something that is just a really bad idea but especially shows how megalomaniac those people are.
  4. This brings back memories of another era, walking us back decades in terms of computer security.

18 August 2026

Andy Simpkins: My first go at tracking down a kernel bug

A couple of weekends back, I upgraded my home sever. It failed to restart after running apt dist-upgrade The only update that was performed was to the kernel, it went from 6.12.88+deb13-amd64 to 6.12.100+deb13-amd64. I had previously performed an apt-get upgrade, and rebooted the machine, so I was pretty sure that this was to blame. This blog entry (is a late) attempt to document how I went about finding a fix for this issue so that next time I don t need as much hand holding as I did this time around :-) (1)
Having my machine not boot following an upgrade is pretty rare, but has happened before. Usually it is because I have done something wrong so as always confirming I haven t broken something by accident is always my first step I plugged in a keyboard an monitor to the machine and watched it boot. Being a server this takes a long time (I guess because at this stage of system initialisation we want to test things sequentially) Watching the system boot I see the usual BIOS/UEFI stages for this machine, followed by the grub menu and the the local screen showed:
            Loading Linux 6.12.100+deb13-amd64 ...
            Loading initial ramdisk ...
Nothing else. That was it. OK that looks like I have a broken system all right, and at very early stage of the boot process process. (2)
Breaking into the grub menu and removing the quiet option yields a little more information (but not much):
            Loading Linux 6.12.100+deb13-amd64  
            Loading initial ramdisk ...
            
            	EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID d
            	evice path
            		EFI stub: Measured initrd data into PCR 9
and nothing else. (3) Initial debugging (4) Triage Start looking for where the fault first occurred. At this point I needed help, and given that Sledge was visiting I asked if he would sanity check what I was doing. His initial thoughts were that that /boot had run out of space, but replaying my step (3) with him acting as a rubber duck showed that this was something other than PBKAC Sledge had a quick look, then informed me that between kernel images 6.12.88+deb13 and 6.12.100+deb13 Debian stable has only had shipped .90 .94 .95 and .96 kernels. We could easily try them all: OK I now have the first kernel image that doesn t boot on my system, time to raise a bug

Up until now I have been walking to my garage where the server is located and standing in front of a rack
with a monitor and keyboard plugged into the machine. However this machine supports IPMI so I spent a little time getting that up and running so that I can continue from the relative comfort of my desk (with lights, a chair and not needing to hold the keyboard with one hand)
Great I can now grab screen shots from the confort of my desk (unfortunatly they are only screen shots not text files, but at least we can seen the early stage of boot, Post, grub menu and then initramfs before system log happens) (5) Collating information for the initial bug report Sledge had mentioned my problem in irc/#debain-kernal where iam_tj suggested that we try appending
debug earlycon=efifb to the kernal command line. This yielded 15 seconds worth of messages before the system locked up the last few messages being (vmlinuz-6.12.96+deb13-amd64):

[ 14.663477] RCU Tasks: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
[ 14.750474] RCU Tasks Rude: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
[ 14.838024] RCU Tasks Trace: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
[ 14.929752] NR_IRQS: 524544, nr_irqs: 584, preallocated irqs: 16
[ 15.016814] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 15.104011] Console: colour dummy device 80 25
[ 15.191236] printk: legacy console [tty0] enabled
[ 15.278249] printk: legacy bootconsole [efifb0] disabled Booting the working kernel with the same kernel options yields the SAME messages with slightly differing times, but then continues to login prompt:

 [   14.697466] RCU Tasks: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
 [   14.784936] RCU Tasks Rude: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
 [   14.872067] RCU Tasks Trace: Setting shift to 5 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=20.
 [   14.964000] NR_IRQS: 524544, nr_irqs: 584, preallocated irqs: 16
 [   15.051482] rcu: srcu_init: Setting srcu_struct sizes based on contention.
 [   15.226079] printk: legacy console [tty0] enabled
 [   15.313751] printk: legacy bootconsole [efifb0] disabled
 [   15.400831] ACPI: Core revision 20240827
 [   15.401415] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns
 [   15.401464] APIC: Switch to symmetric I/O mode setup
 
... and so on
iam_tj also suggested adding keep_bootcon with debug earlycon=efifb keep_bootcon on vmlinuz-6.12.96+deb13-amd64:
We get a LOT further and we see a crash / trace-back:
[ 34.285342] BUG: kernel NULL pointer dereference, address: 0000000000000000
I raised bug #1143721 and followed it up with screen captures of the boot sequence (captured from the IPMI client) and files containing the output of dmidecode, lscpu and lspci to kive the kernel team as much information as possible:
[6.12.96+deb13-amd64 debug earlycon=efifb keep_bootcon.tar.gz (application/gzip, attachment)]
[dmidecode.txt (text/plain, attachment)]
[lscpu.txt (text/plain, attachment)]
[lspci.txt (text/plain, attachment)]
(6) Tracking down the bug Git Bisect The problem with this type of bug is that it is hardware (class) specific, whilst the kernel doesn t boot on my system, it clearly has worked on machines used by the kernel team, the Debian test and build infrastructure, (otherwise this kernel would never have been released) and everyone else who has upgraded to the newer kernel before I did (otherwise we would be drowning in fails to boot bug reports). Carnil s excellent response to my bug: Message #15 (and help in IRC) provided me with a detailed step by step guide in how to track down the individual git commit that fails on my system. I had already (with Sledge s suggestion) made a clone of the stable branch, but was struggling to follow the steps in the Debian Linux Kernel Handbook to re-build a duplicate kernel because I didn t understand how to obtain the same configuration that Debian used to build the kernel; Carnil s email provided me the missing steps (Highlighted).
git clone --single-branch -b linux-6.12.y https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
cd linux-stable
git checkout v6.12.95
cp /boot/config-$(uname -r) .config
yes ''   make localmodconfig
make savedefconfig
mv defconfig arch/x86/configs/my_def
test 6.12.96 to ensure this is "bad"
git checkout v6.12.96
make my_defconfig
make -j $(nproc) bindeb-pkg
  install the resulting .deb package and confirm it fails to boot and triggers the NULL pointer dereference.
Right I can now start to Bisect the problem:
git bisect start
git bisect good v6.12.95
git bisect bad v6.12.96
Rather than use the half step point s git bisect suggested I was advised in irc to jump straight to the a given commit that from the git log was suspected as the culprit:

git checkout 977855894bca4b87afa50d21e3f3e85a5a0e901f
build and install .
fails
git bisect bad

git checkout 977855894bca4b87afa50d21e3f3e85a5a0e901f~1 ## ~1 is the commit beforehand
build and install .
fails
git bisect good The entire test tree can shown with git bisect log and this was submitted as an email to the bug report, we have found our smoking gun :-) Finally I would like to thank Carnil, Iam_tj for their time patience and fantastic support in guiding me through finding this regression. Right now kernel bugs are coming in thick and fast with a lot of AI assisted bug hunting, the increased numbers of bugs mean that the kernel team are especially busy. Hopefully our paths will cross and I ll be able to buy you some beers (or whatever) soon. thank you. Sledge also deserves thanks for putting up with me and pointing me in the right direction (as ever). Lucky for me that he lives nearby so I can provide beers on a regular basis :-)

John Goerzen: AI in Debian: The Vote, Proposals, and Nuance

Let me start with a hypothesis:
For human developers, using coding LLMs magnifies their difference in skill levels.
I am one that rarely thinks things are always black and white. Back in March, I wrote Artifial Intelligence: Shades of Gray. Since then, I ve had more of a chance to experiment with LLMs myself. I also happen to work for an employer that is taking a very pragmatic approach to LLMs: teams and individuals use it as they see fit, but if they are causing considerable expense, they have to justify it. In various settings, I have seen the egregious examples of AI slop we all know about. As I wrote in March, I have seen it both waste more time than it saves, and save a ton of time. I have come to see that, as a tool, it is most valuable when it is running under the supervision of an experienced engineer. It is at its worst when it has no such supervision; the vibe coding and other low-quality slop we see. A coding agent is like a junior developer or research assistant. When properly supervised, they help projects move along more quickly by letting a senior developer focus on the more difficult, less mundane aspects of the project. But one couldn t expect a junior developer to consistently deliver high-quality code and architecture on their own. Let s put a pin in this idea and look at the story in Debian. LLM use in Debian There is a vote happening in Debian around the use of LLMs. In typical Debian fashion, there are 8 options to choose from, many of them similar. Most of these proposals acknowledge there are different types of tasks done in Debian, but the proposals don t differentiate between them well. Let me do so here. These are some of the LLM-relevant tasks people in Debian perform: I m going to focus my remarks here on packaging upstream software for Debian, since this is by far the most time-consuming developer task project-wide. It matters to our users that we get this right, and packaging quality is one of the things that sets Debian apart from other distros. Packaging things for Debian requires knowledge of some specific tools, such as debhelper, that aren t widely used anywhere else. In most cases, it is fairly rote time-consuming work. In other words, by its design, it requires people with senior-level skills to do grunt work. I can t overstate how massive a burden this grunt work is. I maintain some packages for Go and Rust. By Debian policy, all of those packages dependencies must also exist as Debian packages, and be used to build against. When upstream adopts a newer version of some library, it can unleash cascading dependencies that can take hours to sort out. Worse, the Rust team and the Go team use entirely different ways of managing packages (Go uses one Git repo per package, while Rust has a monorepo with specialized scripts to import Cargo packages and generate Debian ones). On top of that, we can t just modify things like usual; we have to use quilt. And on top of that, I m also a backports maintainer, so all the work (and usually even more) has to be done there also. Now let s pull on that pin from the earlier conversation. This is exactly the kind of scenario that a well-supervised coding LLM is most effective in. I could see a seasoned developer saving hours, maybe even days, by turning over the mundane tasks of managing trees of cascading dependencies over to a coding tool and verifying and directing the process. (Yes, I have been using em-dashes for years; LLMs have copied people like me, not the other way around! This post was not written with any AI assistance.) Actually, this is almost a dream scenario for a coding assistant. The result is time-consuming to formulate but easy to review, which is the opposite of the way these things often go. I can assure you with 100% certainty that humans aren t adding a lot of value in this process. It would be wrong to believe that a human is carefully reading every line of code in dozens of updated or new library packages. The problem set is too big, the time too short, and the code too varied and complex. Coding agents seem to be most effective when there are strong test suites that they can test changes against. Debian builds, especially of modern packages, tend to have this property. Many packages have test suites that are run during build. And, if the package builds in an isolated environment (and especially if its downstream dependencies do also), then there is a decent chance that it s fairly correct. Maybe needing some manual tweaking here and there, but generally a successful build is a reasonable indicator. You can argue that it would make more sense for Debian to just include dependencies in source packages, along with some version information to support security rebuilds, and I d tend to agree with you. But we are where we are. This would be one of the more significant leaps forward in developer productivity, but it complicates things like copyright reviews. Where are LLMs run? What is the environmental impact? Most of the proposals seem to make the assumption that LLMs must always run in some large, hosted datacenter. As I noted in my March article, I have had credible results on even an older GPU running on solar power. That said, it is undeniable that LLMs are fueling a datacenter boom, and this in turn is producing a significant new demand for resources. Most notably for the global scale: electricity, which is sometimes generated using carbon-emitting technologies. Bill McKibben, who has been a leading voice in the fight against climate change since the 1980s, has made some interesting points recently: he s noted that solar power is the fastest kind of generation we can build, and a number of large AI companies are investing heavily in solar, even to the point of fully offsetting new datacenter s needs. On the other hand, he s also noted that some companies are buying inefficient and dirty gas turbines. It is decidedly a mixed bag. The heavy investment in solar can have knock-on positive effects for infrastructure. Obviously, not every picture here is rosy. This analysis doesn t touch on the real land and water use situation, either. On the other hand, if an LLM allows me to do in an hour what I would have done in a day, that s a day of not heating or cooling the work area generally not sustaining a human for the purpose of writing code for Debian. HVAC energy consumption dwarfs my GPU, and I d imagine probably also the slice of LLM energy used. Holistically, I would have to conclude the picture is mixed. It is possible to use LLMs in a pretty green way, and also in a pretty dirty way. Assuming Conditions Never Change A flaw in most of these proposals is they assume that the conditions at this present moment will always hold. In fact, that the conditions at the present moment will not continue is something both AI cheerleaders and AI skeptics agree on. For instance: Ed Zitron has done a ton of research into the financing side of AI, and has concluded that the current model is unsustainable and headed for a significant bubble burst. I m not positioned to personally evaluate those claims, but if that happens, what is the result? Perhaps it is a steeply increasing cost of inference for the frontier models, slower pace of training/evolution for them, etc. In a recent episode of Oxide and Friends, Simon Willison discussed the open weight models that are now available. They have been making remarkable strides in efficiency and capabilities, to the point where $50,000 of hardware can now run high-end open weight models with capabilities that are at least in the same ballpark as the American frontier models. This puts running high-end models locally squarely within reach of universities and small- to medium-sized businesses, with power requirements that can be met with standard commercial solar and wind installations. The lack of nuance in the more restrictive proposals is particularly concerning. Proposal A doesn t allow the use or assitance of LLMs . So it bans my solar-powered GPU. It bans using LLMs to find security issues. It bans all sorts of things that don t seem to be ban-worthy, alongside the things that do. And it codifies it in the very hard-to-change social contract. That proposal, and some like it, seem to imply that all LLM output is bad. I grant you that AI slop is a real and legitimate concern, and many Open Source projects have to deal with it. On the other hand, we have all seen first-hand how the security of the Linux kernel has benefited dramatically from AI analysis. It is certain that black hats are using these tools. If we refuse to use modern security tools, our security will be compromised (and what is the environmental and social impact of THAT?) I find the statement Generative AI is characterized by producing output of a nature that would ordinarily be produced and consumed by humans to be particularly interesting. The same was once said of compilers. The Real Concerns You might think from reading this that I am some AI cheerleader. I m not. I share the ethics of the FLOSS movement, and have for decades. I abhor the power and lack of ethics that many big names in the field are running with at the moment. I ve had to put up Anubis on this blog, for instance. I have personally experienced the effects of AI slop, especially at review time. This is a real problem, though I don t think the more draconian policies are likely to help (the looser you must disclose stand a fighting chance, but I m not sure they would help, either.) Done poorly, AI threatens developer burnout by overwhelming them with poor code and verbose but useless explanations. Done well, AI can help prevent developer burnout by automating tedious and low-value tasks. Shouldn t our goal be that humans submit work to Debian, using tools they prefer, and take responsibility for it? Does it matter if someone uses ed, vim, emacs, or vscode? If they use LSP or just run gcc manually? I d say we benefit from the diversity. Wouldn t we be better off to benefit from the diversity here, and judge work as we always have: on its merits, not what tools were used to create it? Fundamentally, a GR is a long and arduous process. It s not easy to reverse later. Amending the Social Contract is even longer and more arduous (I should know; I may have been the first one to try). The LLM landscape is fast-moving. None of us can really predict where it will be in a year. Will the current market leading companies even still exist? Will it be at all credible to refuse to use AI-assisted security tools? What is the most effective way to deal with AI slop? What level of utility will we be able to achieve with models run locally? Some of these proposals would make sense if drafted in some way short of a GR, which would allow more maneuverability as the landscape changes. Brief analysis of the options Considering the proposals: In favor of nuance I find that black-and-white thinking is almost always something to be avoided. I see it too often. I see it in politics, I see it in our software, I see it in discussions around AI. Are there deeply unethical things happening in AI? Absolutely. Are they doing some impressive things? Also yes. We have accepted this nuance in other areas. For instance, almost all the hardware Debian runs on has closed-source hardware, and has components manufactured or assembled in countries with some of the worst human rights records on the planet. I m not saying this is a great state of affairs. It is something we should speak up about and act upon. But the worse state of affairs would be no Debian because the hardware is impure .

15 August 2026

Russell Coker: AMD Video Drivers, LLMs, and Debian Kernels

The AMD GPU Problem For a while I ve been having issues with AMD GPUs, video locking up periodically. I blogged about this late last year but I first had noticeable problems early last year [1]. The problems hadn t only concerned my workstation but also my home server which is also used as a workstation. I ve recently upgraded my machines to Debian/Testing, my home server has been generally OK but my workstation has been crashing a lot. Every second day when on kernel 7.1.6 and then when on 7.1.7 it crashed at least once a day. The AMD GPUs I have are [AMD/ATI] Baffin [Radeon RX 460/560D / Pro 450/455/460/555/555X/560/560X] (rev e5) in my main desktop workstation, [AMD/ATI] Lexa [Radeon 540X/550X/630 / RX 640 / E9171 MCM] (rev c1) in my build server, and [AMD/ATI] Baffin [Radeon RX 460/560D / Pro 450/455/460/555/555X/560/560X] (rev cf) in my home server. They aren t new GPUs, but also aren t really old and they all support 4K and better resolution. Chat GPT Was Useful When I googled the errors I was seeing I found nothing useful. On the suggestion of a friend I tried asking ChatGPT. Generally I don t recommend asking LLMs about such things, but it can be a last resort as long as you know what you are doing. ChatGPT asked me to run a number of commands to get information for it to make more informed decisions. I know that the output of lspci and similar commands isn t a risk, but a novice could be tricked into running commands that expose sensitive data. ChatGPT did give me some useful information, not a solution but an indication that the problem was due to driver bugs. Upgrading to Experimental Debian/Experimental is for packages that are expected to have problems and generally aren t recommended even for the people who usually use Debian/Unstable. It s commonly used for packages that are needed to develop other packages, EG new libraries that aren t fully usable but which are needed to package newer versions of applications. I upgraded my workstation to the Debian/Experimental kernel 7.2~rc7-1~exp1 after having tried every other convenient option. Generally I wouldn t recommend that anyone run an Experimental kernel without a really good reason, but crashing more than once a day is a fairly good reason. That kernel has now given me over 4 days of uptime on a system that previously wouldn t last a day. I installed it on my dual-socket build server that has an old AMD GPU in it for test purposes and that also hasn t crashed since. I installed it on my ML test machine which has an Intel B580 Battlemage GPU with 16G of VRAM and was repeatedly getting a kernel panic related to the GPU a few seconds after boot and now it also works correctly. It seems that the 7.1.x kernels have bugs in the AMD video drivers and in some part of the code that affects Intel video drivers and that the bugs in question are fixed in the tree that will become 7.2. I would not recommend anyone who has a 7.1.x kernel working fine for them try 7.2 RC kernels at this time, but anyone who has GPU related problems (particularly Intel and AMD GPUs) should definitely test it out. I also don t recommend upgrading any system with an AMD GPU to Debian/Testing or Debian/Unstable at this time unless you are also prepared to install an Experimental kernel if it becomes necessary. There are a several kernel log dumps related to this after the break (which won t be in RSS feeds). This is mainly for Google so that other people who have such issues can get more useful results out of Google searches than I got. Future Support Options Separate from the issue of whether commercial LLMs like ChatGPT can be useful for solving technical problems there is the issue of whether they are desirable. I think that we really don t want people solving problems in FOSS systems with closed-source LLMs. This leads to loss of privacy, loss of the control users deserve to have over their own systems, and an implied promotion of non-fee software. I think that the ideal would be to have a cross distribution effort to generate training data for a support LLM system which can then be further trained by each distribution for a greater emphasis on distribution specific issues. Errors on AMD GPUs
2026-08-09T23:03:06.004792+10:00 xev kernel: amdgpu 0000:02:00.0: GPU fault detected: 147 0x00024802
2026-08-09T23:03:06.004792+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 42037 thread kscreenloc:cs0 pid 42044
2026-08-09T23:03:06.004793+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000800
2026-08-09T23:03:06.004794+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0F048002
2026-08-09T23:03:06.004795+10:00 xev kernel: amdgpu 0000:02:00.0: VM fault (0x02, vmid 7, pasid 130) at page 2048, write from 'TC0' (0x54433000) (72)
2026-08-09T23:03:06.008762+10:00 xev kernel: amdgpu 0000:02:00.0: GPU fault detected: 147 0x00004802
2026-08-09T23:03:06.008768+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 42037 thread kscreenloc:cs0 pid 42044
2026-08-04T01:13:37.505839+10:00 xev kernel: ------------[ cut here ]------------ 
2026-08-04T01:13:37.505859+10:00 xev kernel: amdgpu 0000:02:00.0: [drm] drm_WARN_ON_ONCE(cur_vblank != vblank->last) 
2026-08-04T01:13:37.505862+10:00 xev kernel: WARNING: CPU: 6 PID: 210534 at drivers/gpu/drm/drm_vblank.c:362 drm_update_vblank_count+0x2f1/0x3c0 [drm] 
2026-08-04T01:13:37.505866+10:00 xev kernel: snd_intel_dspcfg wmi_bmof rc_core snd_intel_sdw_acpi drm_ttm_helper uas realtek snd_usbmidi_lib snd_hda_codec ttm mdio_devres snd_hda_core snd_seq_midi drm_kms_helper usb_storage mc snd_hwdep libphy snd_seq_midi_event intel_uncore snd_pcm_oss i2c_algo_bit serio_raw snd_rawmidi pcspkr snd_mixer_oss i2c_i801 video snd_seq snd_pcm i2c_smbus lpc_ich snd_seq_device mei_me e1000e snd_timer mei snd tpm_infineon soundcore joydev bnx2 wmi button nfsd auth_rpcgss nfs_acl lockd grace sunrpc coretemp br_netfilter bridge stp llc sg ghash_clmulni_intel loop msr i2c_dev drm efi_pstore configfs nfnetlink ip_tables x_tables autofs4 btrfs blake2b_generic dm_crypt dm_mod raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx libcrc32c xor raid6_pq raid1 raid0 md_mod ext4 crc16 mbcache jbd2 crc32c_generic virtio_blk evdev hid_generic usbhid hid sd_mod xhci_pci xhci_hcd ahci ehci_pci ehci_hcd libahci crc32c_intel libata usbcore aesni_intel nvme psmouse scsi_mod gf128mul crypto_simd nvme_core cryptd 
2026-08-04T01:13:37.505879+10:00 xev kernel: nvme_auth scsi_common usb_common efivarfs 
2026-08-04T01:13:37.505880+10:00 xev kernel: CPU: 6 UID: 1008 PID: 210534 Comm: sshd-session Tainted: G D 6.12.88+deb13-amd64 #1 Debian 6.12.88-1 
2026-08-04T01:13:37.505881+10:00 xev kernel: Tainted: [D]=DIE 
2026-08-04T01:13:37.505883+10:00 xev kernel: Hardware name: Hewlett-Packard HP Z640 Workstation/212A, BIOS M60 v02.61 03/23/2023 
2026-08-04T01:13:37.505884+10:00 xev kernel: RIP: 0010:drm_update_vblank_count+0x2f1/0x3c0 [drm] 
2026-08-04T01:13:37.505885+10:00 xev kernel: Code: 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 68 eb 2b cf 48 c7 c1 70 3e cb c0 48 89 da 48 c7 c7 f9 6f cb c0 48 89 c6 e8 af d7 a6 ce <0f> 0b e9 4b fe ff ff 48 8b 4c 24 18 e9 31 fe ff ff 31 f6 48 85 db 
2026-08-04T01:13:37.505887+10:00 xev kernel: RSP: 0000:ffffd3cc8681fca0 EFLAGS: 00010082 
2026-08-04T01:13:37.505888+10:00 xev kernel: RAX: 0000000000000000 RBX: ffff8c6b42b13710 RCX: 0000000000000027 
2026-08-04T01:13:37.505889+10:00 xev kernel: RDX: ffff8c89ef521788 RSI: 0000000000000001 RDI: ffff8c89ef521780 
2026-08-04T01:13:37.505890+10:00 xev kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: ffffd3cc8681fb20 
2026-08-04T01:13:37.505891+10:00 xev kernel: R10: ffff8c8a6fef3628 R11: 0000000000000003 R12: 0000000000000000 
2026-08-04T01:13:37.505892+10:00 xev kernel: R13: ffff8c6c07853828 R14: 0000000000000003 R15: 0000000000000000 
2026-08-04T01:13:37.505893+10:00 xev kernel: FS: 00007ffaf2fd5880(0000) GS:ffff8c89ef500000(0000) knlGS:0000000000000000 
2026-08-04T01:13:37.505895+10:00 xev kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 
2026-08-04T01:13:37.505896+10:00 xev kernel: CR2: 00007fb1718c8000 CR3: 000000074521a004 CR4: 00000000003706f0 
2026-08-04T01:13:37.505897+10:00 xev kernel: Call Trace: 
2026-08-04T01:13:37.505898+10:00 xev kernel:  
2026-08-04T01:13:37.505899+10:00 xev kernel: drm_crtc_accurate_vblank_count+0x41/0xc0 [drm] 
2026-08-04T01:13:37.505900+10:00 xev kernel: dm_pflip_high_irq+0x155/0x330 [amdgpu] 
2026-08-04T01:13:37.505901+10:00 xev kernel: amdgpu_dm_irq_handler+0x85/0x1f0 [amdgpu] 
2026-08-04T01:13:37.505902+10:00 xev kernel: amdgpu_irq_dispatch+0xd2/0x230 [amdgpu] 
2026-08-04T01:13:37.505903+10:00 xev kernel: amdgpu_ih_process+0x84/0x100 [amdgpu] 
2026-08-04T01:13:37.505904+10:00 xev kernel: amdgpu_irq_handler+0x23/0x60 [amdgpu] 
2026-08-04T01:13:37.505905+10:00 xev kernel: __handle_irq_event_percpu+0x4a/0x190
2026-08-04T01:13:37.505907+10:00 xev kernel: handle_irq_event+0x38/0x80 
2026-08-04T01:13:37.505908+10:00 xev kernel: handle_edge_irq+0x8b/0x230 
2026-08-04T01:13:37.505909+10:00 xev kernel: __common_interrupt+0x45/0xe0 
2026-08-04T01:13:37.505910+10:00 xev kernel: common_interrupt+0x42/0xa0 
2026-08-04T01:13:37.505911+10:00 xev kernel: asm_common_interrupt+0x26/0x40 
2026-08-04T01:13:37.505912+10:00 xev kernel: RIP: 0033:0x7ffaf3c5fd7b 
2026-08-04T01:13:37.505913+10:00 xev kernel: Code: 70 c7 00 66 0f 6e f8 c1 ef 02 66 0f 70 f7 e0 83 c7 01 66 0f ef ff 66 0f fa f2 0f 1f 44 00 00 f3 0f 7e 01 66 0f 6f ce 83 c6 01 <48> 83 e9 08 f2 0f 70 c0 1b 66 0f 6f e0 66 0f 6f e8 66 41 0f f9 c0 
2026-08-04T01:13:37.505915+10:00 xev kernel: RSP: 002b:00007fff86a5e0e0 EFLAGS: 00000202 
2026-08-04T01:13:37.505916+10:00 xev kernel: RAX: 0000000000008000 RBX: 0000562614a04050 RCX: 0000562614982ed8 
2026-08-04T01:13:37.505946+10:00 xev kernel: RDX: 0000000000007fe2 RSI: 0000000000000fad RDI: 0000000000002000 
2026-08-04T01:13:37.505948+10:00 xev kernel: RBP: 0000000000000000 R08: 000056261498ac40 R09: 0000000000008000 
2026-08-04T01:13:37.505949+10:00 xev kernel: R10: 0000000000000066 R11: 0000000000007fe1 R12: 0000000000007efa
2026-08-04T01:13:37.505950+10:00 xev kernel: R13: 0000000000008000 R14: 0000000000008000 R15: 000000000000ffe0 
2026-08-04T01:13:37.505951+10:00 xev kernel:  
2026-08-04T01:13:37.505953+10:00 xev kernel: ---[ end trace 0000000000000000 ]--- 
2026-08-04T01:55:40.844110+10:00 xev kernel: pcieport 0000:00:03.3: AER: Multiple Correctable error message received from 0000:00:03.3 
2026-08-04T01:55:40.844130+10:00 xev kernel: pcieport 0000:00:03.3: PCIe Bus Error: severity=Correctable, type=Data Link Layer, (Receiver ID) 
2026-08-04T01:55:40.844132+10:00 xev kernel: pcieport 0000:00:03.3: device [8086:6f0b] error status/mask=00000040/00002000 
2026-08-04T01:55:40.844134+10:00 xev kernel: pcieport 0000:00:03.3: [ 6] BadTLP
2026-08-11T09:33:33.473855+10:00 xev kernel: amdgpu 0000:02:00.0: GPU fault detected: 147 0x00024802
2026-08-11T09:33:33.473871+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 150905 thread kscreenloc:cs0 pid 150912
2026-08-11T09:33:33.473871+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000800
2026-08-11T09:33:33.473873+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0F048002
2026-08-11T09:33:33.473873+10:00 xev kernel: amdgpu 0000:02:00.0: VM fault (0x02, vmid 7, pasid 63) at page 2048, write from 'TC0' (0x54433000) (72)
2026-08-11T09:33:33.473874+10:00 xev kernel: amdgpu 0000:02:00.0: GPU fault detected: 147 0x00004802
2026-08-11T09:33:33.473874+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 150905 thread kscreenloc:cs0 pid 150912
2026-08-11T09:33:33.473875+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000800
2026-08-11T09:33:33.473876+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0E048002
2026-08-11T09:33:33.473876+10:00 xev kernel: amdgpu 0000:02:00.0: VM fault (0x02, vmid 7, pasid 63) at page 2048, read from 'TC0' (0x54433000) (72)
2026-08-11T09:33:35.481863+10:00 xev kernel: amdgpu 0000:02:00.0: Dumping IP State
2026-08-11T09:33:35.481875+10:00 xev kernel: amdgpu 0000:02:00.0: Dumping IP State Completed
2026-08-11T09:33:35.481875+10:00 xev kernel: amdgpu 0000:02:00.0: [drm] AMDGPU device coredump file has been created
2026-08-11T09:33:35.481876+10:00 xev kernel: amdgpu 0000:02:00.0: [drm] Check your /sys/class/drm/card0/device/devcoredump/data
2026-08-11T09:33:35.481877+10:00 xev kernel: amdgpu 0000:02:00.0: GPU fault detected: 146 0x0110040c
2026-08-11T09:33:35.481877+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 150905 thread kscreenloc:cs0 pid 150912
2026-08-11T09:33:35.481878+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000022
2026-08-11T09:33:35.481879+10:00 xev kernel: amdgpu 0000:02:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0E00400C
2026-08-11T09:33:35.481879+10:00 xev kernel: amdgpu 0000:02:00.0: VM fault (0x0c, vmid 7, pasid 63) at page 34, read from 'TC3' (0x54433300) (4)
2026-08-11T09:33:35.489845+10:00 xev kernel: amdgpu 0000:02:00.0: ring gfx timeout, signaled seq=5123619, emitted seq=5123621
2026-08-11T09:33:35.489853+10:00 xev kernel: amdgpu 0000:02:00.0: Process kscreenlocker_g pid 150905 thread kscreenloc:cs0 pid 150912
2026-08-11T09:33:35.489854+10:00 xev kernel: amdgpu 0000:02:00.0: GPU reset begin!. Source: 1
2026-08-11T09:33:35.493839+10:00 xev kernel: amdgpu 0000:02:00.0: [drm] ERROR Failed to initialize parser -125!
2026-08-11T09:33:35.737848+10:00 xev kernel: amdgpu: cp is busy, skip halt cp
2026-08-11T09:33:35.897842+10:00 xev kernel: amdgpu: rlc is busy, skip halt rlc
2026-08-11T09:33:35.897852+10:00 xev kernel: amdgpu 0000:02:00.0: BACO reset
2026-08-11T09:33:36.485849+10:00 xev kernel: amdgpu 0000:02:00.0: GPU reset succeeded, trying to resume
2026-08-11T09:33:36.485859+10:00 xev kernel: amdgpu 0000:02:00.0: [drm] PCIE GART of 256M enabled (table at 0x000000F402000000).
2026-08-11T09:33:36.485860+10:00 xev kernel: amdgpu 0000:02:00.0: VRAM is lost due to GPU reset!
Errors on Battlemage
Aug 11 17:01:47 ami kernel: ------------[ cut here ]------------
Aug 11 17:01:47 ami kernel: xe 0000:23:00.0: [drm] DMC 1 mmio[0]/0x5f074 incorrect (expected 0x96fc0, current 0x0)
Aug 11 17:01:47 ami kernel: WARNING: drivers/gpu/drm/i915/display/intel_dmc.c:696 at assert_dmc_loaded+0x275/0x430 [xe], CPU#0: kworker/0:3/215
Aug 11 17:01:47 ami kernel: Modules linked in: intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common xe(+) skx_edac snd_h>
Aug 11 17:01:47 ami kernel:  msr i2c_dev configfs efi_pstore efivarfs autofs4 btrfs libblake2b raid6_pq xor mpt3sas raid_class scsi_transport_sas megarai>
Aug 11 17:01:47 ami kernel: CPU: 0 UID: 0 PID: 215 Comm: kworker/0:3 Not tainted 7.1.7+deb14-amd64 #1 PREEMPT(lazy)  Debian 7.1.7-1 
Aug 11 17:01:47 ami kernel: Hardware name: HP HP Z4 G4 Workstation/81C5, BIOS P61 v03.00 04/15/2026
Aug 11 17:01:47 ami kernel: Workqueue: sync_wq local_pci_probe_callback
Aug 11 17:01:47 ami kernel: RIP: 0010:assert_dmc_loaded+0x291/0x430 [xe]
Aug 11 17:01:47 ami kernel: Code: 24 10 e8 f2 e5 a3 ce 48 8d 3d bb 85 0d 00 8b 54 24 0c 45 89 e9 45 89 e0 48 89 c6 52 8b 4c 24 2c 51 8b 4c 24 30 48 8b 54>
Aug 11 17:01:47 ami kernel: RSP: 0018:ffffd27ac0b87b80 EFLAGS: 00010282
Aug 11 17:01:47 ami kernel: RAX: ffffffffc1743dfd RBX: ffff8c5b80e54000 RCX: 0000000000000001
Aug 11 17:01:47 ami kernel: RDX: ffff8c5b81df5a10 RSI: ffffffffc1743dfd RDI: ffffffffc1605860
Aug 11 17:01:47 ami kernel: RBP: ffff8c5b86955000 R08: 0000000000000000 R09: 000000000005f074
Aug 11 17:01:47 ami kernel: R10: 0000000000000000 R11: 0000000000091050 R12: 0000000000000000
Aug 11 17:01:47 ami kernel: R13: 000000000005f074 R14: 0000000000000001 R15: 0000000000000000
Aug 11 17:01:47 ami kernel: FS:  0000000000000000(0000) GS:ffff8c673e172000(0000) knlGS:0000000000000000
Aug 11 17:01:47 ami kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 11 17:01:47 ami kernel: CR2: 00007ffed1fdcd00 CR3: 0000000ae942a003 CR4: 00000000003706f0
Aug 11 17:01:47 ami kernel: Call Trace:
Aug 11 17:01:47 ami kernel:  
Aug 11 17:01:47 ami kernel:  intel_dmc_enable_pipe+0xe4/0x290 [xe]
Aug 11 17:01:47 ami kernel:  ? drm_crtc_vblank_reset+0x4d/0x120 [drm]
Aug 11 17:01:47 ami kernel:  intel_modeset_setup_hw_state+0xb50/0x1e10 [xe]
Aug 11 17:01:47 ami kernel:  ? intel_display_driver_probe_nogem+0x138/0x1a0 [xe]
Aug 11 17:01:47 ami kernel:  intel_display_driver_probe_nogem+0x138/0x1a0 [xe]
Aug 11 17:01:47 ami kernel:  xe_display_init_early+0xb2/0x140 [xe]
Aug 11 17:01:47 ami kernel:  xe_device_probe+0x3c8/0xb50 [xe]
Aug 11 17:01:47 ami kernel:  ? xe_pm_init_early+0x152/0x160 [xe]
Aug 11 17:01:47 ami kernel:  xe_pci_probe+0xc26/0x1150 [xe]
Aug 11 17:01:47 ami kernel:  local_pci_probe+0x3e/0x90
Aug 11 17:01:47 ami kernel:  local_pci_probe_callback+0x16/0x20
Aug 11 17:01:47 ami kernel:  process_one_work+0x19d/0x3a0
Aug 11 17:01:47 ami kernel:  worker_thread+0x1af/0x320
Aug 11 17:01:47 ami kernel:  ? __pfx_worker_thread+0x10/0x10
Aug 11 17:01:47 ami kernel:  kthread+0xe3/0x120
Aug 11 17:01:47 ami kernel:  ? __pfx_kthread+0x10/0x10
Aug 11 17:01:47 ami kernel:  ret_from_fork+0x2b2/0x340
Aug 11 17:01:47 ami kernel:  ? __pfx_kthread+0x10/0x10
Aug 11 17:01:47 ami kernel:  ret_from_fork_asm+0x1a/0x30
Aug 11 17:01:47 ami kernel:  
Aug 11 17:01:47 ami kernel: ---[ end trace 0000000000000000 ]---

11 August 2026

Freexian Collaborators: Debian Contributions: DebConf 26 organization, d-i VLAN support and more! (by Anupa Ann Joseph)

Debian Contributions: 2026-07 Contributing to Debian is part of Freexian s mission. This article covers the latest achievements of Freexian and their collaborators. All of this is made possible by organizations subscribing to our Long Term Support contracts and consulting services.

DebConf 26 organization, by Lucas Kanashiro, Santiago Ruano Rinc n, Stefano Rivera and Antonio Terceiro The 27th Annual Debian Conference was held in Santa Fe, Argentina, and several Freexian fellows were quite busy by being involved in the organization team.
  • Santiago continued helping with duties related to the local team, e.g. preparing or proof-reading some announcements, reviewing the proposed food and the menus for the different diet required.
  • During the conference, Kanashiro and Santiago also carried over tasks related to the content of the conference, including updating the schedule as it became necessary during the event.
  • Stefano worked within the core video team, setting up equipment in talk rooms and coordinating the live video streaming. Stefano also supported the front desk and local organisers as a website developer and conference book-keeper.
  • Antonio kept working on website maintenance, specially in support of the content team. During DebConf he also ran a hands-on workshop to help interested contributors get started with developing the DebConf websites.

d-i VLAN support, by Colin Watson In environments that use IEEE 802.1Q VLANs, some hosts (such as routers attached to trunk ports) may need to apply VLAN tags themselves rather than relying on switches to do so. There has been a long-running request to add support for these to the Debian installer with a proposed patch set put together by several people over the years, and a Freexian customer asked us to help get this over the line. Colin reviewed the latest version of the patch set, applied a number of corrections, added Netplan support, spent some time testing a variety of possible paths through the installer, and landed this. There s also now documentation for this in the next version of the installation guide.

Miscellaneous contributions
  • Carles wrote documentation for installing Mailman3 and migrating from Mailman2. Added it into Mailman3 upstream documentation.
  • Carles, using po-debconf-manager: reviewed 2 packages, submitted 2 packages
  • Carles organized Catalan translation update. Created a Debian Wiki page to have an overview of the work / coordination during next months. Reviewed and submitted some pages.
  • Carles improved the documentation for building the debian.org Web in MR 1154 and MR 1557. Fixed debian-reference documentation. Added sections on Mutt Wiki page (handling of mailto, viewing HTML parts web browser), update and improve bash-completion Wiki page. Added a troubleshooting section in Signal Wiki.
  • Thorsten did another upload of hplip to fix RC bugs. He also spent some time taking care of older bugs. Most of the time such bugs had been fixed in a previous upload but haven t been closed in the BTS. He also uploaded a new upstream version of foomatic-db. Last but not least, he gave some user support with the package epson-inkjet-printer-escpr. There seems to be a new software available for Epson printers. Unfortunately the license is not compatible with DFSG and so this software will never make it into Debian.
  • During DebCamp 26, the Golang team had a dedicated Sprint to transition the Golang toolchain (namely on dh-golang) to make builds aware of the module defined upstream with the aim of solving important issues. To help in these efforts, Santiago made changes in the Salsa CI pipeline and documented on how to use it to check if a package requires adjustments after the toolchain update.
  • Santiago continued co-mentoring Aryan Karamtoth on the Linux livepatching project, specifically providing feedback about the implementation of dlp-tools.
  • Stefano reviewed and merged a migration of Debian reimbursements from wkhtmltopdf to weasyprint, unblocking an upgrade to Debian trixie.
  • Stefano s cPython upstream merge request adding multiarch tags to stable ABI extensions was finally merged.
  • Stefano iterated on his upstream cPython merge request to add CI coverage for Debian s multi-arch expectations.
  • Stefano uploaded Python 3.15.0 beta 4 to Debian experimental.
  • Stefano uploaded Python 3.13 to trixie, fixing a regression in a previous trixie point update he made.
  • Helmut continued to report undeclared file conflicts.
  • Helmut sent patches for three cross build failures.
  • Helmut proposed a MR to port piuparts to pathlib.
  • Antonio has done quite some work on Debian CI, including rebuilding the Debian CI armhf/armel worker VMs, and releasing debci 4.2, implementing a backup scheme, and several improvements to the codebase such as improving the incus-lxc backend in preparation for switching to the upcoming switch to using it by default as announced in the latest bits from the ci.debian.net operators.
  • Emilio helped with transitions, particularly with Python 3.14 as default and Perl 5.42. During the Perl transition, an issue was identified with how britney schedules autopkgtests for binNMUs, and that testing was reverted for the time being.
  • Colin restructured openssh-* binary packages to better support the upcoming GSS-API package split. This caused several autopkgtest regressions in other packages because openssh-server no longer depends on openssh-client, all of which have fixes either pending review or merged now.
  • Lucas started a discussion around the creation of a Debian packaging video course for newcomers in the context of the Outreach team.
  • Lucas reviewed some contributions to ruby3.4 and provided feedback.
  • Anupa worked with Jean-Pierre Giraud on the point release announcements for Debian 13.6 and Debian 12.15.
  • Anupa joined Jean-Pierre Giraud to prepare the Micronews for DebConf 26 press coverage.

10 August 2026

Bits from Debian: DebConf26 Local Team says goodbye

On Saturday 25 July 2026, the annual Debian Developers and Contributors Conference came to a close. The Debian Press team would now like to share this personal and beautiful message from the Santa Fe Local Team. Words from DC26 Local Team DebConf26 is over, and those of us who were part of the Local Team are trying to return to normality , if such a thing exists after organizing a DebConf. This event changed our lives and would not have been possible without the help of many great people. We would especially like to thank everyone who became part of our extended local team. Our endless thanks go to Gunnar who also instigated this whole adventure , Santiago, Nattie, Stefano, and Olasd. Thank you for supporting and guiding us, sharing your experience, and helping us find solutions throughout the entire process. It was also made possible thanks to the great work, strong support and patience of international teams: Fundraising, Bursaries, Content, Video, Treasury, Visa, Website, Accommodation, Front Desk, Cheese and Wine, Publicity as well as all the other teams and individuals who contributed. We apologize if we have forgotten to mention anyone; many people helped make this event possible. Our deepest thanks also go to everyone who joined us in working on the event, especially Fer, Jos , and Juli n, who showed great commitment and took responsibility for several important tasks. We would also like to extend our gratitude to FICH, the Universidad Nacional del Litoral, the institutions, organizations, sponsors, suppliers, and everyone who contributed in one way or another to welcoming the Debian community to Santa Fe. And finally, a very special thank you to our families, to whom we dedicated little time these past few weeks, who supported us on this adventure, enduring the exhaustion, the calls and messages at all hours, and the occasional stressful situation. Always giving us that much-needed, encouraging hug with so much love. These were very intense weeks, during which we tried to give our best so that everyone could enjoy their stay and so that the Debian community had the necessary conditions to meet, work, share knowledge, and continue creating the magic that characterizes community life and the development of Debian. As happens at every DebConf, there were difficulties, unexpected situations, and challenges that required us to improvise, learn, and perform a few juggling acts. There were also moments that will certainly remain as memorable anecdotes: the antisocial room , some gas heaters worthy of a museum, and newly unlocked powers for negotiating with suppliers. We have no evidence, but also no doubt, that for many people the Conference Dinner was one of the best moments of the event. A few ingredients we had hoped would happen naturally were missing, such as more wine nights and at least one in-person football match. During the two weeks of DebConf, we experienced every kind of weather and a wide range of emotions. Above all, however, we saw people enjoying themselves and building friendships, which fills us with pride. Thank you very much to everyone who came and helped DebConf26 leave such a beautiful mark on our hearts. We hope our paths cross again somewhere in life. Best regards, Leonardo, Emmanuel, Mariano, Pablo, and Mart n DebConf26 Local Team About Debian The Debian Project was founded in 1993 by Ian Murdock to be a truly free community project. Since then the project has grown to be one of the largest and most influential Open Source projects. Thousands of volunteers from all over the world work together to create and maintain Debian software. Available in 70 languages, and supporting a huge range of computer types, Debian calls itself the universal operating system. About DebConf DebConf is the Debian Project's developer conference. In addition to a full schedule of technical, social and policy talks, DebConf provides an opportunity for developers, contributors and other interested people to meet in person and work together more closely. It has taken place annually since 2000 in locations as varied as Scotland, Bosnia and Herzegovina, India, Korea, France. More information about DebConf is available from https://debconf.org/. Contact Information For further information, please visit the DebConf26 web page at https://debconf26.debconf.org/ or send mail to press@debian.org.

9 August 2026

Elana Hashman: Managing virtualenvs with a little bash

When you need to install something directly from PyPI, Python virtualenvs have been my go-to for over a decade. A quick virtualenv intro Most of my readers are probably already familiar with virtualenvs, but for completeness, I'll give you a brief introduction. A virtualenv (short for "virtual environment") is an isolated distribution of Python packages, where you can independently install packages without disturbing your system packages or other virtualenvs. You can set one up like this, assuming you are using Python 3.3 or higher:
python3 -m venv ~/.venv/my-virtualenv
The directory specified here is just a convention. I keep all my virtualenvs in the .venv folder in my home directory, but you can pick whatever location you like. To use the virtualenv, you must activate it:
source ~/.venv/my-virtualenv/bin/activate
This activation script is a special shell script that configures your current shell, pointing at all the right paths in order to use the virtual environment. source runs this script in your current shell session to set it up. You will notice that this adds (my-virtualenv) to the beginning of your shell prompt, reminding you that the "my-virtualenv" virtualenv is active. Now when you pip install amazing-package, the software will only be available in this virtual environment. When you're done, you can deactivate it like so:
deactivate
Wonderful! Managing many virtualenvs gets annoying Over time, I end up accumulating many virtualenvs, which can become harder to manage. Maybe something like this:
$ ls ~/.venv/
my-virtualenv cool-project snakes-ahoy
I also don't want to type source ~/.venv/my-virtualenv/bin/activate every time I use the virtualenv, because it gets very repetitive only the name of the venv is really needed. But luckily, we can write a little bit of bash to make managing this less annoying. (Or you can use one of many Python developer tools that are designed to manage this, like pipx, but when I merely want to consume Python software, I might not have a development environment set up. So that's beyond the scope of this post!) If you add the following shell function to your ~/.bashrc or ~/.bash_aliases file, it will nicely wrap our activation command:
setup-venv()  
        source "$HOME/.venv/$1/bin/activate"
 
Now all we need to run is
setup-venv my-virtualenv
So much quicker! Spicing it up with tab completion The first thing I noticed after writing this wrapper was that I started hitting tab on the virtual environment name, but... nothing happened. Wouldn't it be nice to know what virtualenvs I had available, and to not have to type out the whole long thing? Well, we can write it ourselves If for some reason you don't already have bash completion installed, on a Debian-based system, you will need to install it with
apt install bash-completion
In order to configure our bash completion, we will create a new file, /etc/bash_completion.d/venv, with the following contents:
_list_venvs()
 
    local cur prev opts
    COMPREPLY=()
    cur="$ COMP_WORDS[COMP_CWORD] "
    prev="$ COMP_WORDS[COMP_CWORD-1] "
    opts=$(find $HOME/.venv/ -mindepth 1 -maxdepth 1 -type d -printf "%f ")
    COMPREPLY=( $(compgen -W "$ opts " -- $ cur ) )
    return 0
 
complete -F _list_venvs setup-venv
This file defines another shell function order to determine how to autocomplete the options for our setup-venv function. $opts is where we define the options for our function. We generate it with a find command looking at the .venv folder in the current user's home directory, then only including child folders (excluding the current directory itself, .venv, in our results) by using the min/max depth and type arguments, and printing just the individual directory names, deliminated by spaces using our print formatter. Everything else is the standard scaffolding required to use bash completions. Once you save this file and reload your shell, you'll see that you are able to use completions as expected!
setup-venv <tab>
my-virtualenv cool-project snakes-ahoy
setup-venv s<tab>
setup-venv snakes-ahoy
Complaints, comments, questions? Hope this was helpful! If it wasn't, that's too bad. But don't worry you can safely ignore this post.

Reproducible Builds: Reproducible Builds in July 2026

Welcome to the July 2026 report from the Reproducible Builds project! In our reports, we try to outline the most important things that we have been up to over the past month. As a quick recap about what problem our project intends to solve, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiled binaries. The motivation behind the reproducible builds effort is to ensure no flaws have been introduced during this compilation process by promising identical results are always generated from a given source, thus allowing multiple third-parties to come to a consensus on whether a build was compromised or not. If you are interested in contributing to the project, please visit the Contribute page on our website. In this month s report, we cover:

  1. Tool development
  2. Distribution work
  3. Three new scholarly papers
  4. Patches
  5. Misc news

Tool development diffoscope is our in-depth and content-aware diff utility that can locate and diagnose reproducibility issues. This month, Chris Lamb made the following changes, including preparing and uploading versions 324, 325 and 326 to Debian:
  • Fix tests to work with zipdetails 4.0008. (#1141359)
  • Bump debhelper compatibility level to 13. [ ]
  • Update copyright years. [ ]
In addition, Paul Spooren made changes to allow trailing garbage in Gzip files [ ] and Vagrant Cascadian added an external tool reference for the pedump binary to use the mono package under GNU Guix. [ ]
disorderfs is our FUSE-based filesystem that deliberately introduces non-determinism into system calls to reliably flush out reproducibility issues. This month, Christelle Gloor added the option to sort by ctime as returned by the lstat(2) syscall. [ ], which Chris Lamb uploaded whilst bumping the Standards-Version to version 4.7.4 [ ]. Bernhard Wiedemann also updated disorderfs to version 0.7.0 in openSUSE.
Yet again, there were a number of improvements made to our website this month as well. For example, Chris Lamb, by request of Digital Ocean, changed the target of a referral link so that they can manage incoming referrers [ ] and pushed a number of changes to the Tools page [ ].

Distribution work In Debian this month, 32 reviews of Debian packages were added, 26 were updated and a total of 21 were removed this month, adding to our extensive knowledge about identified issues. A number of issue types were added by Chris Lamb, including:
  • python_towncrier_build_date [ ][ ]
  • log_files_installed_in_package [ ]
  • fontforge_varies_by_timezone [ ][ ]
Chris also added a further note for the build_date_in_manpage_generated_by_spf13_cobra issue. [ ]
In addition, there is a new page showing verification rebuilds of OpenWrt APK packages and firmware images, powered by rebuilderd:

Three new scholarly papers Yan Li, Nan Jiang, Qihang Zhou, Shaowen Xu, Yamin Xie and Xiaoqi Jia of the Chinese Academy of Sciences published a paper titled VCAligner: Aligning Source Distribution Versions with Upstream Git Commits to Secure Supply Chain:
We present VCAligner, a content-based alignment methodology that constructs inverted indexes over VCS histories to precisely map released artifacts to their originating commits, independent of fragile version tags. We evaluated VCAligner on a dataset of 2,984 verifiable PyPI packages derived from the 4,000 most-downloaded projects linked to public GitHub upstreams. Our results reveal a critical weakness in conventional tag-based heuristics: while they appear effective on 85% of the dataset, the residual 15% failure rate generates a catastrophic downstream audit workload of over 10.3 million commits. In contrast, VCAligner reduces this burden by two orders of magnitude ( 158 ), bounding the total workload to under 65,000 commits. Furthermore, we provide the large-scale characterization of Packaging Noise, classifying artifact divergence into structural additions (Path Phantoms) and content mutations (Blob Phantoms), thereby isolating the distinct attack surfaces of malicious injection and code tampering.

Jens Dietrich and Spencer Sun from the Victoria University of Wellington together with Tim W. White and Behnaz Hassanshahi from Oracle Inc pre-published their paper No Snake Oil: Verifying Python Package Builds (PDF):
Python has become the default language for interacting with AI, with packages being distributed through registries like the Python Package Index (PyPI). This creates a need to analyse supply chains comprising such packages. One such analysis is to rebuild packages in order to identify compromised builds injecting malware. Independent rebuilds in hardened environments have the added advantage that they can generate and record provenance in order to increase the trustworthiness of packages. Two tools that are designed to automate such rebuilds and run them at scale are macaron and oss-rebuild. We study 12,180 popular releases from PyPI and find that the byte-for-byte equivalence rate is generally low. We analyse the reasons why they produce different wheels, and find that equivalence between the original and rebuilt wheels can often still be established, preserving most of the guarantees users expect from rebuildable releases. We present and evaluate daleq4py, a tool to establish the equivalence of Python wheels through the kernel of a normalisation function that is based on provenance-preserving datalog rules. Experimental results show that daleq4py substantially expands the set of rebuilds that can be accepted as equivalent. Although only 15.4% of macaron rebuilds and 19.1% of oss-rebuild rebuilds are byte-for-byte identical to the published PyPI wheels, daleq4py establishes wheel equivalence for 60.2% and 78.9% of source-equivalent rebuilds, respectively.

Denise Nanni, Julien Malka, Stefano Zacchiroli and Th o Zimmermann from T l com Paris together with Gabriele D Angelo from the University of Bologna pre-published their paper Understanding Build Reproducibility in the F-Droid Ecosystem (PDF), which was accepted at the 2026 ACM Conference on Reproducibility and Replicability:
The security of open source applications benefits considerably from the possibility of rebuilding their source and verifying the output. F-Droid, a prominent distribution for open source Android applications, systematically rebuilds them from source and tests their bitwise reproducibility at app publishing time. However, F-Droid offers no guarantee that app reproducibility will continue to hold in the future. As software ecosystems evolve, reproducibility may degrade, with potential negative consequences for software preservation and security. We present the first empirical study of build reproducibility in the F-Droid app ecosystem. Analyzing historical reproducibility logs, we find that the overall bitwise reproducibility rate has been steadily increasing over time (as new versions of apps are published). We then evaluate how reproducibility holds in time for fixed app versions, by attempting to rebuild 18 904 app versions that F-Droid had previously confirmed bitwise reproducible, published between September 2018 and February 2026, achieving an 83% rebuild success rate, and identify missing dependencies as the dominant cause of failure, accounting for 76% of non-rebuildable cases. Among successfully rebuilt apps, 94% are also bitwise reproducible-i.e., they still yield bitwise identical artifacts upon rebuild. Together, these results show that while bitwise reproducibility largely holds for apps that can be rebuilt, rebuildability itself is highly sensitive to temporal decay.

Patches The Reproducible Builds project detects, dissects and attempts to fix as many currently-unreproducible packages as possible. We endeavour to send all of our patches upstream where applicable or possible. This month, we wrote a large number of such patches, including:

Misc news On our mailing list this month, Colin Winter of Markovian Protocol wrote to our mailing list on the topic of Reproducible verification for retained logs:
Reproducible builds remove trust in the builder: anyone re-derives the same artifact from the same source, byte for byte. The same shape applies one layer over, to a retained record. Most record-keeping regimes (the EU AI Act s Article 12 logging is the current example) require that events be recorded and logs retained, but not that a retained log be verifiable, by a party who was not present, as unaltered and existing when claimed. That leaves an integrity obligation resting on trusting the party being audited.
(Full thread)

Finally, if you are interested in contributing to the Reproducible Builds project, please visit our Contribute page on our website. However, you can get in touch with us via:

4 August 2026

Russell Coker: Monitors for Work

The Corporate Monitor Issue Some time ago I worked in the IT department of a company that had a corporate standard of two 27 FUllHD (either 1920*1080 or 1920*1200) monitors for the desktop. I was pushing to make the standard be one 32 4K monitor or the two cheaper monitors. They ended up making one 27 4K monitor an option which was still a better option for many users than two FullHD monitors due to having twice the pixels even though it had half the screen area. It was a surprise to me when hardly anyone took up that option. One man who worked there brought a wide curved monitor from home and ran with one of the FullHD monitors on each side of that. As an employee in the IT department I had concerns about expensive personal equipment being used in the office regarding who s going to pay the bill if it gets broken. But I was assured that it was his old monitor that he didn t need after buying a better one for gaming at home and he wouldn t be too upset if something happened to it. This isn t the only time I ve witnessed such problems of companies paying large salaries for skilled people and providing poor equipment for them to do the work. One previous time I raised a OH&S issue because the outdated monitors were so blurry but the company determined that the monitors wouldn t cause health problems and spending $150 per employee on better replacements was a waste of money. Computer hardware tends to become cheaper over time and one thing that has become really cheap recently is portable monitors. Kogan has a 15.6 FullHD monitor with USB-C and mini-HDMI inputs for $89 [1]. It wouldn t be difficult for someone to put one of those on each side of the monitor or monitors that their employer provides and put them in a desk drawer at the end of the day to minimise risk. The same Kogan page has a 16 monitor with 2560*1600 resolution for $189. Company Ownership I previously wrote about the potential benefits to companies in not owning all those keyboards, mice, and headsets when they could just give each employee the money and have them buy their own [2]. I don t think we are at the stage where that can be applied to monitors as the cheapest price for a decent monitor is about $500 which takes it out of the disposable price range that keyboards and mice are in. Also from an IT support perspective there are real support issues with monitors and cables having compatibility issues. But paying small amounts of money to reimburse employees who buy cheap portable monitors to supplement their main monitor is a more reasonable option. For some people that will allow noteworthy improvements in work performance. Who Will it Help? I don t think that adding such portable monitors will directly help the majority of workers. I think that to maximise performance and efficiency we need to chase the long tail of improvements. Big monitors, really big monitors (65 at a larger distance), multiple monitors, standing desks, and whatever else people want. There was some research from Microsoft some years ago (back when 27 was a really big monitor) showing that some tasks had a 50% increase in performance with a larger monitor. Now that 27 is about the smallest monitor size commonly available the potential for improvement is reduced. Probably most workers now already have monitors that provide the benefits to them that the big monitors in Microsoft research provided. But there will always be some portion of the user base who will benefit. If you can get a 50% performance boost for 1% of the users that s really worth doing. If you can get a 0.5% benefit for 100% of the users that is also worth doing and will theoretically give equal benefits. Costs of Employees It is claimed that the total cost of an employee including all overheads of management and providing office facilities etc amounts to twice their base salary. If that is the case then a minimum wage employee in Australia costs $100k per year, someone at the low end of the IT pay scale costs $200k, and someone at the high end of the IT scale is around $400k. It seems clearly worthwhile to spend $1000 in hardware purchases for a $100k employee who declares that it will really help their work, anything which is noticeable to the user is going to be more than a 1% difference in performance. For someone at the high end of the IT pay scale spending $40,000 on hardware to improve their performance could pay for itself. This is not only due to direct return on investment but because the people who do such work are often in key roles in important projects. If there s too much work for one person on minimum wage to do then you just hire another person. You can t hire another senior IT person and have them just do the work, it can take months to get up to speed. But as management in corporations seems unable to recognise this cheap hardware employees can afford to buy with their own money can bridge the gap. Job Interviews In future when interviewing for jobs I ll ask about the hardware that s to be used. I won t say I m not interested in this job offer because you don t respect your employees enough to buy adequate hardware , but I may make it a condition of working at a company that the hardware on my desk will not be obsolete.

Dirk Eddelbuettel: #058: Reverse Dependencies Made Easy, Fast, Reliable

Welcome to post 58 in the R4 series. R and the CRAN repositories maintain a very high level of what we might call quality assurrance by requiring that newly-added code does not break any existing dependencies. This is frequently called a reverse-dependency check . For any given CRAN package one can quickly determine it reverse dependencies. Calling tools::package_dependencies(pkgName, reverse=TRUE) will for a scalar or vector-valued argument return a named list with the reverse dependencies. It is then a matter of looping over this list. There are helper functions in base R as well as in contributed packages on and off CRAN. I also wrote my own with package prrd which, while possibly a wee bit specialised and under-documented has served me well to check on Rcpp and related packages which can indeed have a large number of reverse dependencies. I recently looked into one of these contributed runner packages, and while I will refrain from naming its implementation language let me just mention that the term cargo cult may be a real thing here. What go me interested in this was the fact that if one has a simple-to-use runner then the fact that r2u makes it fast, easy, reliable: pick all three (to borrow its slogan) to deal with actual depencies if Ubuntu has indeed been selected as the host. We will maintain the position that if you can in fact integrate with the system-wide package management then any alternative per-repo package management approach not doing so will likely be dominated by an approach that does integrate with the system facilities. Which is what precisely what r2u does, and offers. And why it is used enough to by now have shipped eighty eight million binary packages. So I tested it for the reverse-dependency check task. What I learned by looking into the (much more complicated) runner was that it at the end of the day it hands the actual task of running the reverse dependecies off to a helper function rev_check that is part of the xfun package by Yuhui. I quickly found that besides xfun we would also need its suggested dependency tinytex which in turn would error unless the tlmgr binary was present. So as the sole requirement (on an Ubuntu system with r2u) turns out to be
$ apt install r-cran-xfun r-cran-tinytex texlive-base
where we do it all in one apt call (as root in the container). (Given r2u we could also call install.packages(c("xfun","tinytext")) followed by apt install texlive-base but it is simpler for this setup step to be just one call). With that we are basically done. I did this (twice) using a rocker/r2u container with r2u preinstalled, mounting a local work and scrap directory for the container. In it we expand the package to be tested (i.e. tar xaf pkgName_*tar.gz for a given source package pkgName from CRAN) and then just call with the package name and expanded direcrtory. I.e. I used this call to test my package AsioHeaders (which has just three reverse dependencies) to both name it and to point to the expanded source directory created for this purposed:
> system.time( res <- xfun::rev_check("AsioHeaders", src="AsioHeaders") )
## ... earlier output omitted for brevity here ...
   user  system elapsed 
 35.732   3.333 149.683 
> res
   httpgd ipaddress websocket 
        0         0         0 
> 
and about a good two minutes later I would get the timing result and the summary in variable res. As I checked the current CRAN version, the check was as expected free of concerns or issues. To support this, r2u did indeed go off and install about sixty seven binary packages (and the total includes all binary dependencies fully resolved) delivering on the just works promise by the r2u documentation. As another check, I did the same for RcppAnnoy which has seven reverse dependencies and needed about two hundred CRAN packages to be installed. The full test took just over four minutes with the timing function reporting some nice gains from parallelisation as total user compute time was on the order of just under eight minutes. Again, test results were clean and free of worries as expected:
> system.time( res <- xfun::rev_check("RcppAnnoy", src="RcppAnnoy") )
## ... earlier output omitted for brevity here ...
   user  system elapsed 
471.765 378.220 266.855 
> res
   bbknnR  bigANNOY  blocking     scDHA    Seurat      uwot VectrixDB 
        0         0         0         0         0         0         0 
> 
Overall this was a rather useful quick excursion as it demonstrates that - existing functions can be used to orchestrate a reverse dependency check - with reasonable dependency scale we can do this on a single machine quite easily taking advantage of parallel computing on multi-core machines - using r2u gives us fast, easy, reliable package installation making testing of packages we might not otherwise use or know a breeze - doing this in an ephemeral Docker container facilitates easy build-up of required resources and leaves no side effects behind which might affect our normal development environment

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. If you like this or other open-source work I do, you can now sponsor me at GitHub.

3 August 2026

John Goerzen: Celebrating 45 Years of Kermit with the First New C-Kermit Release in 15 Years (and working with a decades-old C codebase)

1981 was a different time for computing. It was expensive (both hardware and software), and it was far from a given that machines from one vendor would be able to talk to those from another. In fact, Columbia University had just such a problem, so in 1981, Frank da Cruz and Bill Catchings designed a serial protocol they called Kermit. Because of the many quirks of the DEC-20 and IBM mainframes, the Kermit protocol was highly adaptable from the start: able to handle systems that had trouble processing more than 96 bytes of data at once, able to transfer 8-bit files over 7-bit links, able to translate between character sets (ASCII and EBCDIC then; now also various Unicodes), and of course, handling of error-prone serial links. Kermit spread rapidly; by 1982, Kermit had been ported to MS-DOS and Unix. Eventually, C-Kermit (an implementation of Kermit in C) became the flagship Kermit. It gained TCP support, an interactive CLI, a powerful scripting language (with features from the shell, Lisp, and expect), and optimizations for today s high-speed links, such as jumbo packets, sliding windows, and streaming modes. Along the way, Kermit flew on the International Space Station, ran data collection from sensors during hurricanes, and many other uses including postal systems, Boeing 787 manufacturing, and more. Today, I use it as a powerful ssh wrapper (letting me easily transfer files through multiple nested ssh, sudo, su, etc. commands), a BBS client, to exchange data with me HP 48GX calculator, and so on. It s also used today to transmit firmware updates to embedded devices. And, of course, anyone that works with vintage systems is likely to use Kermit at some point. It wouldn t be until the late 1990s that the TCP/IP stack was finally adopted by most OS vendors, establishing something of a common basis for communication. Of course, we assume this today. Though transferring large files between OSs (say, Linux, Windows, MacOS, Android, iPad, etc.) is still a challenge, even though they all speak TCP/IP! I find that the easiest way to get large files from two computers is to spin up Kermit (see ckwin for a Windows fork of C-Kermit) and just set up a TCP connection over the LAN. In fact, I added a new show interfaces command in C-Kermit 11, making it easy to see your system s local IPs. For most of its history, Columbia s Kermit project was self-funded. Columbia charged for commercial use, which limited its inclusion in Linux distributions. In 2011, 30 years after its founding, Columbia canceled the Kermit Project and released C-Kermit as Open Source under a BSD license. Frank da Cruz, who had still been working with the Kermit project all those years, volunteered to continue maintaining Kermit outside Columbia, and continued development with alpha and beta releases through his retirement from the project in 2025. I dive into this C codebase As Debian maintainer of Kermit, I noticed some areas where it wasn t matching modern expectations. One area was, not surprising for a project of its age, security. Another area was that its character set or line-ending conversions are usually not desired now; we are used to byte-identical binary transfers, and the defaults caused confusion and even some rare instances of data corruption. So I started making a few patches last year. I ve worked with old C codebases before, such as Varnish. I ve generally hated it. You usually find a mix of bad and terrible practices, unclear memory management, and so forth. But I ve been living in the C-Kermit codebase for a few months now, and I enjoy it. Yes, this thing is still designed to build on VMS, OS/2, and with compilers that haven t heard of ANSI and those that require modern practices. (That em-dash was mine; I knew how to use them before LLMs existed and I m not going to stop just because LLMs have copied people like me! No AI was used for this post.) The there is an elegance in all of that. As I worked, I fixed a bunch more potential security issues, both with memory safety and with protecting against a malicious remote in roughly the same manner that some patches to scp did a few years back. I added IPv6 support, of course conditionally compiled because some systems C-Kermit builds on have never heard of IPv6 and never will. (And, of course, with fallback algorithms at runtime for systems that have IPv6 support but not IPv6 connectivity.) I added unit tests and Python-based end-to-end tests, running nearly 2000 test cases in total. Along the way, I found and fixed a number of bugs going back decades. I learned about FIONREAD being broken on macOS, about NetBSD s bugs in the pty driver, and fixed bugs in the Kermit protocol implementation itself. I added compatibility tests with the gkermit and ekermit (embedded) implementations, as well as the last full release, C-Kermit 9.0.302 from 2011 (which was difficult to get compiled on a modern system). There is an extensive changelog describing all the improvements in C-Kermit 11. C-Kermit development had never really used a VCS at any point, though Kermit veteran Jeffrey Altman imported historical releases into a Git repo, along with some patches that hadn t made it into a release (which I also pulled in.) There was a lot of disabled code behind COMMENT, along with commentary describing why it was no longer used. With Git, we would now generally just remove the old code and explain why in a commit message. I went through and did so with a lot of it, meaning that, at last check, C-Kermit actually has fewer lines of code now than it used to. Towards a new release It became apparent pretty quickly that I was making more changes than would make sense as a Debian patch series. Not only that, but they would be more widely applicable to more than just Debian and Ubuntu users. As Linux and BSD distributions were running everything from the last non-beta release (2011 s 9.0.302) to the last beta release (about 1.5 years ago), depending on their different policies about running betas, even sharing patches in a useful fashion was going to be quite difficult. So, I spun up a project at Open Kermit to coordinate future development in the open and keep Kermit going. With modern CI, I run that test suite on Linux (x86_64 and arm64), macOS, FreeBSD, NetBSD, and OpenBSD. It builds binary releases on all those platforms, plus a statically-linked Linux binary built with musl libc. You can download the latest C-Kermit release, and of course contribute to C-Kermit and its website. Dedication Frank da Cruz was directly involved with Kermit for 44 years. I m not aware of any other Open Source project founder being involved for so long. Richard Stallman started working on GNU Emacs in 1984, 3 years after Frank started working on Kermit, but Richard hasn t been in that role since around 2008. Accordingly, C-Kermit 11 bears this dedication:
I dedicate this release of C-Kermit to Frank da Cruz. Frank was directly involved with Kermit for 44 years, from its initial design in 1981 all the way through 2025. He maintained Kermit as an Open Source project after Columbia University ended its sponsorship. I know of no other Open Source project where the founder remains so personally involved for so long. When Kermit was begun, transfers between different hardware and operating systems were difficult or impossible. Frank helped build a bridge. Kermit glued systems together, from the International Space Station to pocket calculators, and set a new standard for interoperability. It continues to do so. Kermit is still one of the quietly-working pillars of computing today, enabling everything from firmware upgrades to radios. And, yes, it still reliably transfers files over serial lines. As we start to spend a lot of time in the Kermit codebase, we do so standing on the shoulders of a giant. Thanks, Frank, for your decades of work on Kermit. John Goerzen, July 2026

2 August 2026

Ben Hutchings: FOSS activity in July 2026

31 July 2026

Jonathan McDowell: My CPU died

I built my current house server back in 2019. It had an upgrade from the original Ryzen 2700 to a 5700G in late 2021, but otherwise is still running with the original setup. Back in November it developed some erratic behaviour (initially manifesting as problems with the TPM, which is ironic as I ve spent a bunch of time at my day job trying to improve TPM reliability), culminating in unreliable reboots. I had a limited amount of ability to swap parts out, but ultimately decided it was a motherboard issue (thinking perhaps VRM problems), found a replacement locally, and everything seemed fine. Until May. At that point I rebooted the machine for a Debian point release, and it failed to come back. Fans would spin, but there was no sign of actual life. I ended up pressing a temporary machine into service (that could at least run the Home Assistant container, and a few other critical bits) while I tried to work out what was wrong. I d kept the previous motherboard, and still had the Ryzen 2700, so I did a bunch of swaps (and obtained a motherboard buzzer to try and get some indication about whether there were useful beep codes being emitted), and ultimately came to the conclusion that the CPU had died. I m not quite clear what happened here. I played it safe and replaced the PSU at the same time, in case that was the original cause back in November and ultimately damaged the CPU, but both old + new motherboards worked just fine with the 2700. That left a decision about what to do. This previous server was from 2013, so this machine has now lasted longer than that and I could justifiably upgrade. However when I went to look at what the equivalent modern machine would be it s only a couple of generations later (Zen 5 vs Zen 3), and 64GB RAM alone would have set me back ~ 1k. For not a lot of gain. So I ended up buying a replacement Ryzen 5700G, hopefully allowing me to put off thinking about an upgrade until Zen 6 is out, and RAM prices are saner (though I understand that might take a couple of years). It s not the first time I ve had a faulty PSU be the cause of a dead machine, but it was a pretty frustrating experience.

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