Search Results: "ag"

22 August 2026

Russell Coker: Links August 2026

This YouTube video about the Cashier Girl Meme is interesting in the context of AI systems that generate images of people and can communicate with people, hotter than any real human is an achievable goal [1]. Stand Up Maths has an interesting Youtube video about LLMs solving maths problems which I highly recommend watching (it does not require any real knowledge of maths), I think this opens the door to attacks on well established cryptologic systems [2]. Adam Conover made an insightful YouTube video about how and why Hollywood is now unable to make good sitcoms and why this is bad for society [3]. Sky Croeser wrote an interesting and insightful blog post about topics covered at the Digital and sexual citizenship in an age of social media bans: Interrogating the rights of children and young people conference [4]. Zane wrote a very informative blog post about reverse engineering a trojaned Android projector with Claude Code [5]. We need much better security on home networks to break the business model for this sort of thing. Renee Stonebraker s article Puritans Wouldn t Eat Pussy, So They Invented the Western has a lot of interesting information about early days of colonising the US, and not much about eating pussy [6]. IFLScience has an interesting article about brinicles, icicles of brine that form under sea ice [7]. Nautilus has an interesting article about the Silurian Hypothesis [8]. The Conversation has an intersting article about the pros and cons of no-till farming [9]. Cold War is a 365tomorrows story about bio-warfare which raises several disturbing possibilities we need to guard against [10]. Scott Santens wrote an insightful article describing how a land value tax would reduce rent and solve the housing shortages [11]. Positive News has an interesting article about using OnlyFans to teach people about climate change [12]. The Conversation has an interesting article about cultural safety in healthcare, sounds good, and while we are at it lets deal with sexism [13]. Doctoreww has an interesting web page about ways of displaying different strings to humans and machines, this could result in you running a different command to what you thought you copied from a web site or defeating tools designed to block hostile content [14]. Cory Doctorow wrote an insightful article Commentary Hell is Other People about the way rich people want to use AI to replace all people [15]. Also psychologists who help rich people accept being greedy are worthy of a Luigi The research article Worship me at the office altar: Why narcissistic leaders resist remote work is interesting, yet another reason to get rid of narcissistic executives [16]. Renew Economy has an interesting article about clean up costs for mining (which is usually left for the government to pay) and how this could impact renewable energy production facilities [17]. Elvira Bary wrote an insightful article on the Russian financial collapse that is happening now [18]. The Guardian has an interesting article about Afro-American women who travel to South Korea for healthcare because of problems with racism and sexism in American hospitals [19]. The Conversation has an interesting article about the potential for disabled people to be more productive in space than non-disabled people [20]. Krebs has an interesting article about LG banning residential proxy code from apps after the LG store was found to have such code in 42% of it s apps [21]. Robert B Shpiner wrote an insightful article for The Guardian about the death of democracy in the US [22].

Dirk Eddelbuettel: RProtoBuf 0.4.28 on CRAN: Small Updates

A new minor release 0.4.28 of RProtoBuf arrived on CRAN today. RProtoBuf provides R with bindings to the Google Protocol Buffers ( ProtoBuf ) data encoding and serialization library used and released by Google, and deployed very widely in numerous projects as a language and operating-system agnostic protocol. The new release is also already as a binary via r2u. This release corrects a really old bug. Troy found, when working on gRPC based extensions, which is in and by itself exciting, that a small part of our interface surface (for service descriptors) was just wrong confusing single and double underscores. adjusts to a change upstream. This has been corrected. I updated a few of the usual continuous integration parts, updated a help page for a newly-added nag by CRAN, and also got a last-minute round of noodling in as the JSS paper vignette was still referencing OmegaHat which the CRAN URL checker objected to. I created a quick one-off repo to serve pdf files should the need arise again, and rebuilt the vignette linking to it. No other changes. The following section from the NEWS.Rd file has all details and links.

Changes in RProtoBuf version 0.4.28 (2026-08-21)
  • Standard maintenance of continuous integration
  • The type help page has received a usage section
  • Cleanup of several methods for ServiceDescriptor, correct several other declaration (Troy Hernandez in #117 fixing #116)
  • Adjusted vignette reference to Omegahat paper to alternate location

Thanks to my CRANberries, there is a diff to the previous release. The RProtoBuf page has copies of the (older) package vignette, the quick overview vignette, and the pre-print of our JSS paper. Questions, comments etc should go to the GitHub issue tracker off 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 sponsor me at GitHub.

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 !

Reproducible Builds (diffoscope): diffoscope 329 released

The diffoscope maintainers are pleased to announce the release of diffoscope version 329. This version includes the following changes:
[ Jochen Sprickerhof ]
* Handle missing cpio and qemu-img in autopkgtests. (Closes: #1144617)
You find out more by visiting the project homepage.

20 August 2026

Ian Jackson: Open Letter to the Wikimedia Foundation Board

I have just sent an open letter to the Board of the Wikimedia Foundation, the umbrella organisation for Wikipedia (and a number of other projects), expressing my support for Wiki Workers United and the unionisation effort by WMF staff. Here is the letter: To: Board of Trustees, Wikimedia Foundation via Wikimedia_Foundation_Board_noticeboard and WWU
published at https://diziet.dreamwidth.org/21442.html Re: My support for Wiki Workers United Dear Trustees Wikipedia has become one of the pillars of the free and open Internet. Across the world, reliable sources of information are under attack. I'm proud to have played my very small part in the community of editors of English Wikipedia for the last 20 years. I am also proud of my contributions to the Free Software movement, including especially Debian. Debian, whose constitution and package installer I originally wrote, has become one of the technological foundations of the open Internet. Unfortunately, there are signs that the Wikimedia Foundation is not performing its proper role as bulwark against attacks on democracy, including from moneyed interests. Recent events at WMF have been very alarming to me, and seem to form part of a disturbing trend. As a Trustee Director of a UK charity myself, I understand that WMF Trustees must defend the interests of the Foundation. But that cannot mean taking actions that undermine the Foundation's mission. Nor can it mean the deplorable, and even dishonest, practices, that WMF appears to have been engaging in. As a Wikipedian, as a Free Software activist, and as a citizen of the planet, I stand in solidarity with Wiki Workers United. Union- busting must stop immediately. The Foundation should immediately formally recognise the unions in the UK and the US. Further, WMF is an international organisation. Collective decisionmaking needs to be transnational too. WMF should recognise WWU as a negotiating partner worldwide, even if thresholds for formal legal recognition are not met in individual national jurisdictions. Wiki Workers are not the WMF's enemy. WMF needs capable and ideologically committed staff to maintain and operate its highly complex systems, in the face of constant attacks. Staff with principles and a mission are WMF's biggest asset. Dr Ian Jackson
Cambridge, UK
20th August 2026

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Jonathan Dowland: Bauer X4 inline skates

I m really enjoying getting back into ice skating, but I can only get to the rink once a week (at least over the summer -- I'm aiming for twice weekly once Schools re-open) and I have the itch to do more skating than that.
photo of me wearing inline skates, from above
Where I live we re blessed with a seaside park with lots of smooth paths, a recently resurfaced beachside promenade, and a newly-built pedestrian/cycle path stretching up and down the coast: all great surfaces for roller skates. I convinced myself to buy some inline skates whilst the weather is good.
group shot of my skates
I wanted something as close to my ice skating experience as possible. Bauer actually make an inline version of my ice boot, but the chassis is an unusual composite plastic thing which put me off. (here's a great video of a fantastic inline skater trying out the chassis). CCM have a new inline range for 2026, but sadly (much like their Jetspeed ice range) the fit wasn't good for me. I found a clearance pair of Bauer vapors from the previous generation: the Bauer Vapor x4. Very similar to my Fly30, but the difference in quality between the tiers is very apparent: boot stiffness, the comfort and quality of the liner. They fit well (possibly better), the rolling motion is really smooth (I think that's the bearings) and they looked pretty good to me: yellow highlights instead of the red used across the ice range. I've done a couple of miles in them so far. Time will tell if they prove useful for off-ice training! Many inline hockey players buy ice skates and convert them to inline. If I end up not using them enough I could consider doing the opposite.

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

Thomas Lange: LLM usage in Debian

After spending many hours on reading all the proposals and discussions the best choice for me is NOTA (None of the above). We do not need to create new rules for LLM usage, we already have our DFSG and our social contract. Keep it simple, stupid. Avoid more rules!

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 .

16 August 2026

Bits from Debian: Debian turns 33!

It has now been thirty-three years since the Debian project was announced to the world by Ian Murdock, on August 16, 1993. This anniversary is an opportunity to reaffirm the goals, characteristics, and qualities of the Debian project: it s an association of individuals who have made common cause to create a free operating system. Our distribution is characterized by a commitment to software freedom, as enshrined in the Debian Social Contract and the Debian Free Software Guidelines. It focuses on security and stability. This stability is crucial to Debian position in the free software ecosystem. With our users as our priority, Debian makes special efforts regarding accessibility with Debian-Accessibility and diversity with our Outreach Programs. Debian Day is a great opportunity to get together, whether for a local meetup, or simply to grab a coffee with other members of the Debian community. Check out the Debian Day wiki to see if there is a celebration near you. And if there isn't, maybe you can organize it next year! Today is also an opportunity for you to start or resume your contributions to Debian. For example, you can install the how-can-i-help package and see if there is a bug in any of the software that you use that you can help to fix, contribute small tips on how to install Debian on your machines to our wiki pages, or put a Debian live image in an USB memory and give it to some person near you, who still didn't discover Debian. Thanks to everybody who has contributed to develop our beloved operating system in these 33 years, and Happy birthday Debian!

Vasudev Kamath: Releasing debvulns-exporter and debvulns CLI 0.2.2

I made another minor release with several enhancements: handling non-Debian origin vulnerabilities, improving data caching, and sharing the cache between the debvulns CLI and the exporter. Additionally, there are a few improvements on the dashboard front. Here is a breakdown of what changed.
Handling Vulnerabilities in Non-Debian Origin Packages During the previous release, I noticed that the grafana package which is not in Debian and was installed via an upstream repository was reported as vulnerable with multiple issues. Looking into why this happened, I found that all the CVEs reported in the dashboard were indeed listed on security-tracker.debian.org, but without a fixed version or status description. The logic assumed no fix was available and marked the package as vulnerable on the dashboard.
How Did I Solve This? Google maintains a distributed vulnerability database for open-source projects called osv.dev. I checked the generic vulnerability data for those CVEs on OSV (unbound to any specific distribution) and found that the issues were already fixed in the upstream version I was running. What I needed was a way to differentiate native Debian packages from non-Debian packages, which corresponds to the Origin field in APT metadata.
Pitfall The AI-generated code initially attempted to differentiate package origin using apt_pkg.PackageRecords and its origin field. However, many native Debian packages were incorrectly flagged as non-Debian. On closer inspection, when an upgrade is available for a package, the installed version's origin field can be unset. I had to resolve this by detecting available upgrades and inspecting the candidate version's origin instead, which was implemented in this patch. This solution was proudly crafted by me ;-) (partly because I ran out of API limits and had to wait 6 hours for the next reset).
Caching OSV Data Initially, the AI implemented the exporter to re-download the entire OSV dataset on every run, which was unnecessary. Since vulnerability data does not change rapidly once published, caching it on disk for longer than the standard 24-hour Debian/EPSS cache makes sense. OSV vulnerability data is now cached for 7 days before a refresh is triggered. All cache expiration thresholds remain configurable via CLI flags.
Catch One caveat with this approach: I have not yet verified whether every upstream CVE is tracked on security-tracker.debian.org. In the case of grafana, the entries existed. This feature operates on the assumption that security-tracker.debian.org indexes CVE metadata regardless of whether the package is native to Debian. I plan to re-evaluate this and add fallback handling if that assumption fails.
Unified Cache Directory for CLI and Exporter Another issue was cache segregation: the debvulns CLI utility defaulted to /var/cache/debvulns, while the Prometheus exporter used /var/cache/debvulns-exporter. While harmless when running only one tool, installing both led to duplicated cache storage and redundant network requests. Since the core evaluation logic is identical across both tools, they now share a unified cache directory to eliminate duplicate downloads.
Dashboard Changes During the initial dashboard rollout, my test environment (my laptop alongside Debian 11 and Debian 12 VMs) reported a high aggregated vulnerability count. It was not immediately obvious whether these were distinct vulnerabilities or the same CVEs replicated across all three machines. This mirrors common questions raised during vulnerability reviews:
  • How many unique vulnerabilities are present across the fleet?
  • Which unique packages are affected?
The dashboard has been redesigned to surface unique vulnerability counts alongside affected package lists. The updated dashboard is shown below:
What's Next? A few planned items remain to make debvulns a comprehensive vulnerability reporting toolkit for Debian systems:
  1. Kernel Vulnerability Handling: Currently, installing a patched kernel marks the vulnerability as resolved, even if the system has not rebooted into it. The system remains exposed while the vulnerable kernel is executing in memory. Factoring in running kernel versions is crucial.
  2. Reboot and Service Restart Tracking: Similar to kernel upgrades requiring a reboot, userland library and binary fixes require running services to be restarted. This is typically detected via needrestart. Integrating this behavior directly into debvulns will provide complete visibility in a single dashboard metric.
  3. Debian Packaging: Once the above features are stable, the final step is packaging debvulns for Debian so it can be installed directly from the archive.
Until then, happy hacking.

Benjamin Mako Hill: Sad Story

Picture of a box in a fireplace saying:

Not a screenshot of despair. But only because it s not a screenshot.

15 August 2026

Russell Coker: Hacked by Chinafans

What Happened On 2026/08/10 at 2:11 am Australian eastern standard time (2026/08/09 16:11 UTC) someone created a post titled Hacked by Chinafans on my documents blog [1]. The person in question created an account named 67965e42a3c3 on that site with the email address 67965e42a3c3@google.com associated with it (I tried emailing that address and it bounced). At 04:28:41am Australian eastern standard time (18:28 UTC) I was sent an email titled Have you been hacked by a reader of my blogs who subscribed to the RSS feed of my documents blog (a blog that I never expected anyone to read by RSS). Along the lines of the wisdom of crowds should we have the unexpected observation and problem reporting of crowds ? I appreciate the notification, I might not have noticed until the next time I watched an unusually good movie otherwise. The account in question was apparently created on 2026-07-21 at 16:43:47 (presumably UTC) even though at the time I believe creating accounts was not permitted. As an aside the timestamp of account creation is stored in the user_registered column of the wp_users table in the database, there doesn t appear to be a way to access this in a standard WordPress installation other than doing a SQL query.
2026-07-24 15:43:17 status triggers-pending wordpress:all 7.0+dfsg1-1
2026-07-24 15:43:19 upgrade wordpress:all 7.0+dfsg1-1 7.0.2+dfsg1-1
Above are the relevant sections of my dpkg log showing the WordPress versions in use. I was running version 7.0+dfsg1-1 at the time the account was apparently created. I am confident in the accuracy of the dpkg logs and believe that they did not compromise the OS, I am not sure whether they ran hostile SQL code to change fields in the MySQL database so had to consider the possibility that the account creation time could have been set to a deliberately misleading value. I checked backups of the MySQL database stored off-site and found that the account in question was not in the 2026-07-21 backup (which was done before 16:43) but in the 2026-07-22 backup. The WordPress release history [2] has version 7.0.1 released on 2026-07-09 and version 7.0.2 released on 2026-07-17. So presumably the attacker diffed the code on those releases, found an exploitable bug, and used it to create an account on my blog with admin privs. Then they waited a few weeks to see if I would notice and published a blog post when I didn t notice. WordPress Deficiencies
  1. WordPress doesn t seem to store the version it s running at the time of operations. So anyone who doesn t have a suitable external log of versions deployed (such as the dpkg.log file for a Debian managed installation) won t know for sure which version was running. It supports automatic updates but you can t be sure that they happened soon after the release.
  2. There is no log of IP addresses used for operations. There are apparently some 3rd party modules to log such things and web pages documenting how to modify the PHP to add it but nothing in the standard distribution.
  3. Software should have a standard distribution with some support for logging of security relevant data. The typical situation is that people don t plan for logging such things until after they have been attacked so the data should be recorded without users going out of their way to log it.
  4. A log of security relevant data should be stored in a database table with only insert access (no update, delete, or drop).
  5. Ideally a CMS would support different database accounts for different purposes. Someone from an internal network or VPN could talk to an instance of the web server which has a database username and password giving full access. Everyone from outside the trusted range gets an instance of the web server with database access only allowing to read the posts and appearance configuration and to enter comments. If the database didn t allow the account used for public access to create new admin users or create posts then it would be a lot harder for attackers.
  6. Ideally for everything that stores user account data there would be an easy way of getting a list of users in a plain text format to allow running diff. The design of WordPress has two tables, one for users and one for encoded metadata about users of which one will be the access level. The following SQL command will give a list of all users that aren t subscribers (everyone above the minimum level of access which is typical for new users) along with their encoded password and access level. This could be used in a monitoring system to alert about new privileged users. The TABLE_PREFIX variable is for the prefix for WordPress tables, which is wp_ by default but can be any legal value.
    select $TABLE_PREFIXusers.user_login, $TABLE_PREFIXusers.user_pass, $TABLE_PREFIXusermeta.meta_value from  $TABLE_PREFIXusers join $TABLE_PREFIXusermeta on $TABLE_PREFIXusers.id = $TABLE_PREFIXusermeta.user_id and meta_key='$TABLE_PREFIXcapabilities' and meta_value != 'a:1: s:10:"subscriber";b:1; ';
What Next? The blog post they created had a couple of links to Telegram which could presumably be used to contact them. If anyone involved in computer security wants a copy of the original post to do so then they can contact me by any of the usual methods. I am interested in communication with the attacker if they wish, Telegram is not a service I use but I presume that anyone capable of doing this sort of attack is also capable of finding other ways of contacting me. I have idly considered changing to a static site generator, here is a good list of static site generators [3]. I have also idly considered other platforms for blogging such as Lemmy. I don t know if Lemmy is better than WordPress for security and updates, but there are plenty of free instances running where it wouldn t be an issue I have to work on. 15 Years It s been 15 years since my blog server was cracked by a trojaned ssh client [4]. At least this time it was only one service that was compromised.

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 ]---

14 August 2026

Reproducible Builds (diffoscope): diffoscope 328 released

The diffoscope maintainers are pleased to announce the release of diffoscope version 328. This version includes the following changes:
[ Chris Lamb ]
* Don't require python3-guestfs in the autopkgtests on 32-bit architectures.
  (Closes: #1144372)
[ Jochen Sprickerhof ]
* Use the XML comparators for SVG vector image files. (Closes: #1144242)
You find out more by visiting the project homepage.

13 August 2026

Gunnar Wolf: File recovery in process...

Ohai, I have some pending, encrypted mails to answer. And some of my answers for the next few days (particularly to what pertains to the current in-discussion vote on LLM usage in Debian) will be unsigned, even though I d like otherwise. My desktop system at work is showing some data corruption, and I m slowly backing up my data. Fortunately, it seems I haven t lost any data, but still, given I m letting rsync run until it starts spewing I/O errors, then power down and let the machine cool a bit, and start again it is a potentially long process. And yes, this makes me somewhat angry. Why angry? Because I m working on a brand-new computer (well, have used it for slightly over six months), custom-built to specs requested by my workplace. Specs that I don t really need, this machine is an utter luxury (i.e. an AMD Ryzen 9 9950X processor with 16 real cores / 32 threads; 128GB RAM in this day and age of RAM shortage, quite recent 32GB GPU, and lots of shiny lights seen in its huge fishbowl cabinet, liquid-based cooling ). The specs came not from me, but from people who had no idea what we would use them for. And yes, I expect the little fortune spent on this machine to be good for my use for probably a decade, as my previous computer was, but the amount paid was exorbitant. But still, what I learned recently is that the 4TB nVME SSD it has (a T-Force TM8FFJX34T) is a very cheap brand, bought because it was close to half the price of other offerings similar in capacity. According to smartctl s output, th SSD operates with a Warning Comp. Temp. Threshold: 90 Celsius and Critical Comp. Temp. Threshold: 110 Celsius, which sounds sensible, even too high for my standards (my last two laptops have been fanless yes, an ARM system is very different from a high-end gaming machine). I m right now typing from my laptop, which shows 78 C and 82 C for warning/critical thresholds. And as expected, under heavy sustained reads (backing up to my NFS server), the desktop s smartctl shows Temperature: 83 Celsius and, further down, Temperature Sensor 1: 107 Celsius and Temperature Sensor 2: 82 Celsius (don t know which of these would make the threshold jump). The SSD has sustained Media and Data Integrity Errors: 20 and Warning Comp. Temperature Time: 21 (although Critical Comp. Temperature Time: 0). At least one of my colleagues have shrugged and installed a SATA SSD, laying the huge nVME basically to waste. Anyway I also learned I am not the first, but the fourth person to notice this kind of issues in this system (out of ten similar purchased systems AIUI). It is completely unacceptable, and I ll be pushing our Institute s authorities to demand the provider to provide either good component quality for this very expensive system that has many luxury items, or to fix the system s build in a way the nVME does not heat as much as it currently does. Anyway, sigh, I only wanted to say, please excuse me for not using my cryptographic keys for a couple of days PS- I m also currently not connected to IRC and Jabber (and some similar technologies), as my bouncer runs from my usual workstation.

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