Search Results: "reg"

18 April 2014

Thorsten Glaser: Stay off my computer, puppet!

I was out, seeing something that wasn t there yet when I was at school (the web was not ubiquitous, back then), and decided to have a look: 
pageok

Ugh. Oh well, PocketIE doesn t provide a View Source thingy, so I asked Natureshadow (who got the same result on his Android, and had no View Source either apparently, so he used cURL to see it). We saw (here, re-enacted using ftp(1)): 

	tg@blau:~ $ ftp -Vo - http://www.draitschbrunnen.de/
	<!-- pageok -->
	<!-- managed by puppet -->
	<html>
	<pre>pageok</pre>
	</html>

This is the final straw after puppet managed to trash a sudoers(5) at work (I warned people to not introduce it) now it breaks websites.

(Of course, tools are useful, but at best to the skill of their users. Merely dumbly copying recipes from the net without any understanding just makes debugging harder for those of us with skills.) ObQuestion: Does anyone have a transcript (into UTF-8) and a translation for the other half of the OpenBSD 2.8 poster? (I get asked this regularily.)
Update: One person sent me the Kanji and Kana for it in UTF-8 , and they and one more person told me it s Hands off my machine! or Don t lay a hand on my machine! . Now I m not studying Japanese, but it LGTM in FixedMisc [MirOS], and JMdict from MirPorts says: ore no mashin ni te (w)o dasu na (roughly: my machine; particle; hands; particle; put out; prohibition) Thanks all, now I know what to tell visitors who wonder about that poster on my wall. ObTip: I can install a few hundred Debian VMs at work manually before the effort needed to automate d-i would amortise. So I decided not to. Coworkers are shocked. I keep flexibility (can decide to have machines differ), and the boss accepts my explanations. Think before doing automation just for the sake of automation!

15 April 2014

Dirk Eddelbuettel: BH release 1.54.0-2

Yesterday's release of RcppBDT 0.2.3 lead to an odd build error. If one used at the same time a 32-bit OS, a compiler as recent as g++ 4.7 and the Boost 1.54.0 headers (directly or via the BH package) then the file lexical_cast.hpp barked and failed to compile for lack of an 128-bit integer (which is not a surprise on a 32-bit OS). After looking at this for a bit, and looking at some related bug report, I came up with a simple fix (which I mentioned in an update to the RcppBDT 0.2.3 release post). Sleeping over it, and comparing to the Boost 1.55 file, showed that the hunch was right, and I have since made a new release 1.54.0-2 of the BH package which contains the fix.
Changes in version 1.54.0-2 (2014-04-14)
  • Bug fix to lexical_cast.hpp which now uses the test for INT128 which the rest of Boost uses, consistent with Boost 1.55 too.
Courtesy of CRANberries, there is also a diffstat report for the most recent release. Comments and suggestions are welcome via the mailing list or issue tracker at the GitHub repo.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Colin Watson: Porting GHC: A Tale of Two Architectures

We had some requests to get GHC (the Glasgow Haskell Compiler) up and running on two new Ubuntu architectures: arm64, added in 13.10, and ppc64el, added in 14.04. This has been something of a saga, and has involved rather more late-night hacking than is probably good for me. Book the First: Recalled to a life of strange build systems You might not know it from the sheer bulk of uploads I do sometimes, but I actually don't speak a word of Haskell and it's not very high up my list of things to learn. But I am a pretty experienced build engineer, and I enjoy porting things to new architectures: I'm firmly of the belief that breadth of architecture support is a good way to shake out certain categories of issues in code, that it's worth doing aggressively across an entire distribution, and that, even if you don't think you need something now, new requirements have a habit of coming along when you least expect them and you might as well be prepared in advance. Furthermore, it annoys me when we have excessive noise in our build failure and proposed-migration output and I often put bits and pieces of spare time into gardening miscellaneous problems there, and at one point there was a lot of Haskell stuff on the list and it got a bit annoying to have to keep sending patches rather than just fixing things myself, and ... well, I ended up as probably the only non-Haskell-programmer on the Debian Haskell team and found myself fixing problems there in my free time. Life is a bit weird sometimes. Bootstrapping packages on a new architecture is a bit of a black art that only a fairly small number of relatively bitter and twisted people know very much about. Doing it in Ubuntu is specifically painful because we've always forbidden direct binary uploads: all binaries have to come from a build daemon. Compilers in particular often tend to be written in the language they compile, and it's not uncommon for them to build-depend on themselves: that is, you need a previous version of the compiler to build the compiler, stretching back to the dawn of time where somebody put things together with a big magnet or something. So how do you get started on a new architecture? Well, what we do in this case is we construct a binary somehow (usually involving cross-compilation) and insert it as a build-dependency for a proper build in Launchpad. The ability to do this is restricted to a small group of Canonical employees, partly because it's very easy to make mistakes and partly because things like the classic "Reflections on Trusting Trust" are in the backs of our minds somewhere. We have an iron rule for our own sanity that the injected build-dependencies must themselves have been built from the unmodified source package in Ubuntu, although there can be source modifications further back in the chain. Fortunately, we don't need to do this very often, but it does mean that as somebody who can do it I feel an obligation to try and unblock other people where I can. As far as constructing those build-dependencies goes, sometimes we look for binaries built by other distributions (particularly Debian), and that's pretty straightforward. In this case, though, these two architectures are pretty new and the Debian ports are only just getting going, and as far as I can tell none of the other distributions with active arm64 or ppc64el ports (or trivial name variants) has got as far as porting GHC yet. Well, OK. This was somewhere around the Christmas holidays and I had some time. Muggins here cracks his knuckles and decides to have a go at bootstrapping it from scratch. It can't be that hard, right? Not to mention that it was a blocker for over 600 entries on that build failure list I mentioned, which is definitely enough to make me sit up and take notice; we'd even had the odd customer request for it. Several attempts later and I was starting to doubt my sanity, not least for trying in the first place. We ship GHC 7.6, and upgrading to 7.8 is not a project I'd like to tackle until the much more experienced Haskell folks in Debian have switched to it in unstable. The porting documentation for 7.6 has bitrotted more or less beyond usability, and the corresponding documentation for 7.8 really isn't backportable to 7.6. I tried building 7.8 for ppc64el anyway, picking that on the basis that we had quicker hardware for it and didn't seem likely to be particularly more arduous than arm64 (ho ho), and I even got to the point of having a cross-built stage2 compiler (stage1, in the cross-building case, is a GHC binary that runs on your starting architecture and generates code for your target architecture) that I could copy over to a ppc64el box and try to use as the base for a fully-native build, but it segfaulted incomprehensibly just after spawning any child process. Compilers tend to do rather a lot, especially when they're built to use GCC to generate object code, so this was a pretty serious problem, and it resisted analysis. I poked at it for a while but didn't get anywhere, and I had other things to do so declared it a write-off and gave up. Book the Second: The golden thread of progress In March, another mailing list conversation prodded me into finding a blog entry by Karel Gardas on building GHC for arm64. This was enough to be worth another look, and indeed it turned out that (with some help from Karel in private mail) I was able to cross-build a compiler that actually worked and could be used to run a fully-native build that also worked. Of course this was 7.8, since as I mentioned cross-building 7.6 is unrealistically difficult unless you're considerably more of an expert on GHC's labyrinthine build system than I am. OK, no problem, right? Getting a GHC at all is the hard bit, and 7.8 must be at least as capable as 7.6, so it should be able to build 7.6 easily enough ... Not so much. What I'd missed here was that compiler engineers generally only care very much about building the compiler with older versions of itself, and if the language in question has any kind of deprecation cycle then the compiler itself is likely to be behind on various things compared to more typical code since it has to be buildable with older versions. This means that the removal of some deprecated interfaces from 7.8 posed a problem, as did some changes in certain primops that had gained an associated compatibility layer in 7.8 but nobody had gone back to put the corresponding compatibility layer into 7.6. GHC supports running Haskell code through the C preprocessor, and there's a __GLASGOW_HASKELL__ definition with the compiler's version number, so this was just a slog tracking down changes in git and adding #ifdef-guarded code that coped with the newer compiler (remembering that stage1 will be built with 7.8 and stage2 with stage1, i.e. 7.6, from the same source tree). More inscrutably, GHC has its own packaging system called Cabal which is also used by the compiler build process to determine which subpackages to build and how to link them against each other, and some crucial subpackages weren't being built: it looked like it was stuck on picking versions from "stage0" (i.e. the initial compiler used as an input to the whole process) when it should have been building its own. Eventually I figured out that this was because GHC's use of its packaging system hadn't anticipated this case, and was selecting the higher version of the ghc package itself from stage0 rather than the version it was about to build for itself, and thus never actually tried to build most of the compiler. Editing ghc_stage1_DEPS in ghc/stage1/package-data.mk after its initial generation sorted this out. One late night building round and round in circles for a while until I had something stable, and a Debian source upload to add basic support for the architecture name (and other changes which were a bit over the top in retrospect: I didn't need to touch the embedded copy of libffi, as we build with the system one), and I was able to feed this all into Launchpad and watch the builders munch away very satisfyingly at the Haskell library stack for a while. This was all interesting, and finally all that work was actually paying off in terms of getting to watch a slew of several hundred build failures vanish from arm64 (the final count was something like 640, I think). The fly in the ointment was that ppc64el was still blocked, as the problem there wasn't building 7.6, it was getting a working 7.8. But now I really did have other much more urgent things to do, so I figured I just wouldn't get to this by release time and stuck it on the figurative shelf. Book the Third: The track of a bug Then, last Friday, I cleared out my urgent pile and thought I'd have another quick look. (I get a bit obsessive about things like this that smell of "interesting intellectual puzzle".) slyfox on the #ghc IRC channel gave me some general debugging advice and, particularly usefully, a reduced example program that I could use to debug just the process-spawning problem without having to wade through noise from running the rest of the compiler. I reproduced the same problem there, and then found that the program crashed earlier (in stg_ap_0_fast, part of the run-time system) if I compiled it with +RTS -Da -RTS. I nailed it down to a small enough region of assembly that I could see all of the assembly, the source code, and an intermediate representation or two from the compiler, and then started meditating on what makes ppc64el special. You see, the vast majority of porting bugs come down to what I might call gross properties of the architecture. You have things like whether it's 32-bit or 64-bit, big-endian or little-endian, whether char is signed or unsigned, that sort of thing. There's a big table on the Debian wiki that handily summarises most of the important ones. Sometimes you have to deal with distribution-specific things like whether GL or GLES is used; often, especially for new variants of existing architectures, you have to cope with foolish configure scripts that think they can guess certain things from the architecture name and get it wrong (assuming that powerpc* means big-endian, for instance). We often have to update config.guess and config.sub, and on ppc64el we have the additional hassle of updating libtool macros too. But I've done a lot of this stuff and I'd accounted for everything I could think of. ppc64el is actually a lot like amd64 in terms of many of these porting-relevant properties, and not even that far off arm64 which I'd just successfully ported GHC to, so I couldn't be dealing with anything particularly obvious. There was some hand-written assembly which certainly could have been problematic, but I'd carefully checked that this wasn't being used by the "unregisterised" (no specialised machine dependencies, so relatively easy to port but not well-optimised) build I was using. A problem around spawning processes suggested a problem with SIGCHLD handling, but I ruled that out by slowing down the first child process that it spawned and using strace to confirm that SIGSEGV was the first signal received. What on earth was the problem? From some painstaking gdb work, one thing I eventually noticed was that stg_ap_0_fast's local stack appeared to be being corrupted by a function call, specifically a call to the colourfully-named debugBelch. Now, when IBM's toolchain engineers were putting together ppc64el based on ppc64, they took the opportunity to fix a number of problems with their ABI: there's an OpenJDK bug with a handy list of references. One of the things I noticed there was that there were some stack allocation optimisations in the new ABI, which affected functions that don't call any vararg functions and don't call any functions that take enough parameters that some of them have to be passed on the stack rather than in registers. debugBelch takes varargs: hmm. Now, the calling code isn't quite in C as such, but in a related dialect called "Cmm", a variant of C-- (yes, minus), that GHC uses to help bridge the gap between the functional world and its code generation, and which is compiled down to C by GHC. When importing C functions into Cmm, GHC generates prototypes for them, but it doesn't do enough parsing to work out the true prototype; instead, they all just get something like extern StgFunPtr f(void);. In most architectures you can get away with this, because the arguments get passed in the usual calling convention anyway and it all works out, but on ppc64el this means that the caller doesn't generate enough stack space and then the callee tries to save its varargs onto the stack in an area that in fact belongs to the caller, and suddenly everything goes south. Things were starting to make sense. Now, debugBelch is only used in optional debugging code; but runInteractiveProcess (the function associated with the initial round of failures) takes no fewer than twelve arguments, plenty to force some of them onto the stack. I poked around the GCC patch for this ABI change a bit and determined that it only optimised away the stack allocation if it had a full prototype for all the callees, so I guessed that changing those prototypes to extern StgFunPtr f(); might work: it's still technically wrong, not least because omitting the parameter list is an obsolescent feature in C11, but it's at least just omitting information about the parameter list rather than actively lying about it. I tweaked that and ran the cross-build from scratch again. Lo and behold, suddenly I had a working compiler, and I could go through the same build-7.6-using-7.8 procedure as with arm64, much more quickly this time now that I knew what I was doing. One upstream bug, one Debian upload, and several bootstrapping builds later, and GHC was up and running on another architecture in Launchpad. Success! Epilogue There's still more to do. I gather there may be a Google Summer of Code project in Linaro to write proper native code generation for GHC on arm64: this would make things a good deal faster, but also enable GHCi (the interpreter) and Template Haskell, and thus clear quite a few more build failures. Since there's already native code generation for ppc64 in GHC, getting it going for ppc64el would probably only be a couple of days' work at this point. But these are niceties by comparison, and I'm more than happy with what I got working for 14.04. The upshot of all of this is that I may be the first non-Haskell-programmer to ever port GHC to two entirely new architectures. I'm not sure if I gain much from that personally aside from a lot of lost sleep and being considered extremely strange. It has, however, been by far the most challenging set of packages I've ported, and a fascinating trip through some odd corners of build systems and undefined behaviour that I don't normally need to touch.

14 April 2014

Andrew Pollock: [life] Day 76: Dora + Fever

We had a bit of a rough night last night. I noticed Zoe was pretty hot when she had a nap yesterday after not really eating much lunch. She still had a mild fever after her nap, so I gave her some paracetamol (aka acetaminophen, that one weirded me out when I moved to the US) and called for a home doctor to check her ears out. Her ears were fine, but her throat was a little red. The doctor said it was probably a virus. Her temperature wasn't so high at bed time, so I skipped the paracetamol, and she went to bed fine. She did wake up at about 1:30am and it took me until 3am to get her back to bed. I think it was a combination of the fever and trying to phase out her white noise, but she just didn't want to sleep in her bed or her room. At 3am I admitted defeat and let her sleep with me. She had only a slightly elevated temperature this morning, and otherwise seemed in good spirits. We were supposed to go to a family lunch today, because my sister and brother are in town with their respective families, but I figured we'd skip that on account that Zoe may have still had something, and coupled with the poor night's sleep, I wasn't sure how much socialising she was going to be up for. My ear has still been giving me grief, and I had a home doctor check it yesterday as well, and he said the ear canal was 90% blocked. First thing this morning I called up to make an appointment with my regular doctor to try and get it flushed out. The earliest appointment I could get was 10:15am. So we trundled around the corner to my doctor after a very slow start to the day. I got my ear cleaned out and felt like a million bucks afterwards. We went to Woolworths to order an undecorated mud slab cake, so I can try doing a trial birthday cake. I've given up on trying to do the sitting minion, and significantly scaled back to just a flat minion slab cake. The should be ready tomorrow. The family thing was originally supposed to be tomorrow, and was only moved to today yesterday. My original plan had been to take Zoe to a free Dora the Explorer live show that was on in the Queen Street Mall. I decided to revert back to the original plan, but by this stage, it was too late to catch the 11am show, so the 1pm show was the only other option. We had a "quick" lunch at home, which involved Zoe refusing the eat the sandwich I made for her and me convincing her otherwise. Then I got a time-sensitive phone call from a friend, and once I'd finished dealing with that, there wasn't enough time to take any form of public transport and get there in time, so I decided to just drive in. We parked in the Myer Centre car park, and quickly made our way up to the mall, and made it there comfortably with 5 minutes to spare. The show wasn't anything much to phone home about. It was basically just 20 minutes of someone in a giant Dora suit acting out was was essentially a typical episode of Dora the Explorer, on stage, with a helper. Zoe started out wanting to sit on my lap, but made a few brief forays down to the "mosh pit" down the front with the other kids, dancing around. After the show finished, we had about 40 minutes to kill before we could get a photo with Dora, so we wandered around the Myer Centre. I let Zoe choose our destinations initially, and we browsed a cheap accessories store that was having a sale, and then we wandered downstairs to one of the underground bus station platforms. After that, we made our way up to Lincraft, and browsed. We bought a $5 magnifying glass, and I let Zoe do the whole transaction by herself. After that it was time to make our way back down for the photo. Zoe made it first in line, so we were in and out nice and quick. We got our photos, and they gave her a little activity book as well, which she thought was cool, and then we headed back down the car park. In my haste to park and get top side, I hadn't really paid attention to where we'd parked, and we came down via different elevators than we went up, so by the time I'd finally located the car, the exit gate was trying to extract an extra $5 parking out of me. Fortunately I was able to use the intercom at the gate and tell my sob story of being a nincompoop, and they let us out without further payment. We swung by the Valley to clear my PO box, and then headed home. Zoe spontaneously announced she'd had a fun day, so that was lovely. We only had about an hour and half to kill before Sarah was going to pick up Zoe, so we just mucked around. Zoe looked at stuff around the house with her magnifying glass. She helped me open my mail. We looked at some of the photos on my phone. Dayframe and a Chromecast is a great combination for that. We had a really lovely spell on the couch where we took turns to draw on her Magna Doodle. That was some really sweet time together. Zoe seemed really eager for her mother to arrive, and kept asking how much longer it was going to be, and going outside our unit's front door to look for her. Sarah finally arrived, and remarked that Zoe felt hot, and so I checked her temperature, and her fever had returned, so whatever she has she's still fighting off. I decided to do my Easter egg shopping in preparation for Sunday. A friend suggested this cool idea of leaving rabbit paw tracks all over the house in baby powder, and I found a template online and got that all ready to go. I had a really great yoga class tonight. Probably one of the best I've had in a while in terms of being able to completely clear my head. I'm looking forward to an uninterrupted night's sleep tonight.

Dirk Eddelbuettel: RcppBDT 0.2.3

A new release of the RcppBDT package is now on CRAN. Several new modules were added; the package can now work on dates, date durations, "ptime" (aka posix time), and timezones. Most interesting may be the fact that ptime is configured to use 96 bits. This allows a precise representation of dates and times down to nanoseconds, and permits date and time calculations at this level. The complete NEWS entry is below:
Changes in version 0.2.3 (2014-04-13)
  • New module 'bdtDt' replacing the old 'bdtDate' module in a more transparent style using a local class which is wrapped, just like the three other new classes do
  • New module 'bdtTd' providing date durations which can be added to dates.
  • New module 'bdtTz' providing time zone information such as offset to UTC, amount of DST, abbreviated and full timezone names.
  • New module 'bdtDu' using 'posix_time::duration' for time durations types
  • New module 'bdtPt' using 'posix_time::ptime' for posix time, down to nanosecond granularity (where hardware and OS permit it)
  • Now selects C++11 compilation by setting CXX_STD = CXX11 in src/Makevars* and hence depend on R 3.1.0 or later this gives gives us long long needed for the nano-second high-resolution time calculations across all builds and platforms.
Courtesy of CRANberries, there is also a diffstat report for the lastest release. As always, feedback is welcome and the rcpp-devel mailing list off the R-Forge page for Rcpp is the best place to start a discussion. Update: I just learned the hard way that the combination of 32-bit OS, g++ at version 4.7 or newer and a Boost version of 1.53 or 1.54 does not work with this new upload. Some Googling suggests that this ought to be fixed in Boost 1.54; seemingly it isn't as our trusted BH package with Boost headers provides that very version 1.54. However, the Googling also suggested a quick two-line fix which I just committed in the Github repo. A new BH package with the fix may follow in a few days.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

13 April 2014

C.J. Adams-Collier: When was the last time you upgraded from squeeze to wheezy?

Wow. 3G delta. I haven t booted this laptop for a while I think I m finally ready to make the move from gnome2 to gnome3. There are bits that still annoy me, but I think it s off to a good start. Upgrading perl from 5.10 to 5.14. 
cjac@calcifer:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be REMOVED:
  at-spi capplets-data compiz compiz-gnome compiz-gtk defoma deskbar-applet g++-4.3 gcc-4.3 gcj-4.4-base gcj-4.4-jre gcj-4.4-jre-headless gcj-4.4-jre-lib
  gdm3 gir1.0-clutter-1.0 gir1.0-freedesktop gir1.0-glib-2.0 gir1.0-gstreamer-0.10 gir1.0-gtk-2.0 gir1.0-json-glib-1.0 glade-gnome gnome-about
  gnome-accessibility gnome-applets gnome-core gnome-panel gnome-utils-common lib32readline5-dev libbrasero-media0 libclass-mop-perl libdb4.7-java
  libdb4.8-dev libdevhelp-1-1 libdigest-sha1-perl libdirectfb-dev libebook1.2-9 libecal1.2-7 libedata-book1.2-2 libedata-cal1.2-7 libedataserverui1.2-8
  libepc-1.0-2 libepc-ui-1.0-2 libept1 libgcj10 libgcj10-awt libgd2-noxpm libgstfarsight0.10-0 libgtkhtml-editor0 libjpeg62-dev libmetacity-private0
  libmono-accessibility1.0-cil libmono-bytefx0.7.6.1-cil libmono-cairo1.0-cil libmono-cil-dev libmono-corlib1.0-cil libmono-cscompmgd7.0-cil
  libmono-data-tds1.0-cil libmono-data1.0-cil libmono-debugger-soft0.0-cil libmono-getoptions1.0-cil libmono-i18n-west1.0-cil libmono-i18n1.0-cil
  libmono-ldap1.0-cil libmono-microsoft7.0-cil libmono-npgsql1.0-cil libmono-oracle1.0-cil libmono-peapi1.0-cil libmono-posix1.0-cil
  libmono-relaxng1.0-cil libmono-security1.0-cil libmono-sharpzip0.6-cil libmono-sharpzip0.84-cil libmono-sqlite1.0-cil libmono-system-data1.0-cil
  libmono-system-ldap1.0-cil libmono-system-messaging1.0-cil libmono-system-runtime1.0-cil libmono-system-web1.0-cil libmono-system1.0-cil
  libmono-webbrowser0.5-cil libmono-winforms1.0-cil libmono1.0-cil libmtp8 libnautilus-extension1 libpango1.0-common libperl5.10 libpolkit-gtk-1-0
  libpulse-browse0 librpm1 librpmbuild1 libsdl1.2-dev libsdl1.2debian-pulseaudio libseed0 libstdc++6-4.3-dev libtelepathy-farsight0 libupnp3 libvlccore4
  libxmlrpc-c3 linphone-nox linux-headers-2.6.32-5-amd64 linux-sound-base metacity mono-2.0-devel mono-devel mysql-client-5.1 mysql-query-browser
  mysql-server-5.1 mysql-server-core-5.1 openoffice.org-base-core openoffice.org-core openoffice.org-gcj openoffice.org-report-builder-bin
  openoffice.org-style-andromeda php5-suhosin portmap python-beagle python-brasero python-docky python-encutils python-evince python-gnomeapplet
  python-gtop python-mediaprofiles python-metacity python-totem-plparser seahorse-plugins smbfs speedbar totem-coherence tqsllib1c2a unixcw vlc
  xserver-xorg-video-nv
The following NEW packages will be installed:
  accountsservice acl aisleriot apg aptdaemon-data aptitude-common asterisk-core-sounds-en asterisk-modules asterisk-moh-opsound-gsm at-spi2-core
  ax25-node bluez btrfs-tools caribou caribou-antler chromium chromium-inspector colord console-setup console-setup-linux cpp-4.6 cpp-4.7 crda
  cryptsetup-bin cups-filters db-util db5.1-util dconf-gsettings-backend dconf-service dconf-tools distro-info-data docutils-common docutils-doc enchant
  extlinux finger folks-common fonts-cantarell fonts-droid fonts-freefont-ttf fonts-horai-umefont fonts-lg-aboriginal fonts-liberation fonts-lyx
  fonts-opensymbol fonts-sil-gentium fonts-sil-gentium-basic fonts-sipa-arundina fonts-stix fonts-takao fonts-takao-gothic fonts-takao-mincho
  fonts-thai-tlwg fonts-tlwg-garuda fonts-tlwg-kinnari fonts-tlwg-loma fonts-tlwg-mono fonts-tlwg-norasi fonts-tlwg-purisa fonts-tlwg-sawasdee
  fonts-tlwg-typewriter fonts-tlwg-typist fonts-tlwg-typo fonts-tlwg-umpush fonts-tlwg-waree fonts-umeplus fuse g++-4.7 g++-4.7-multilib gcc-4.6
  gcc-4.6-base gcc-4.7 gcc-4.7-base gcc-4.7-multilib gcj-4.7-base gcj-4.7-jre gcj-4.7-jre-headless gcj-4.7-jre-lib gconf-service gcr
  gir1.2-accountsservice-1.0 gir1.2-atk-1.0 gir1.2-atspi-2.0 gir1.2-caribou-1.0 gir1.2-clutter-1.0 gir1.2-clutter-gst-1.0 gir1.2-cogl-1.0
  gir1.2-coglpango-1.0 gir1.2-evince-3.0 gir1.2-folks-0.6 gir1.2-freedesktop gir1.2-gck-1 gir1.2-gconf-2.0 gir1.2-gcr-3 gir1.2-gdesktopenums-3.0
  gir1.2-gdkpixbuf-2.0 gir1.2-gee-1.0 gir1.2-gkbd-3.0 gir1.2-glib-2.0 gir1.2-gmenu-3.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomekeyring-1.0
  gir1.2-gst-plugins-base-0.10 gir1.2-gstreamer-0.10 gir1.2-gtk-3.0 gir1.2-gtkclutter-1.0 gir1.2-gtksource-3.0 gir1.2-gtop-2.0 gir1.2-gucharmap-2.90
  gir1.2-javascriptcoregtk-3.0 gir1.2-json-1.0 gir1.2-mutter-3.0 gir1.2-networkmanager-1.0 gir1.2-notify-0.7 gir1.2-panelapplet-4.0 gir1.2-pango-1.0
  gir1.2-peas-1.0 gir1.2-polkit-1.0 gir1.2-rb-3.0 gir1.2-soup-2.4 gir1.2-telepathyglib-0.12 gir1.2-telepathylogger-0.2 gir1.2-totem-1.0
  gir1.2-totem-plparser-1.0 gir1.2-upowerglib-1.0 gir1.2-vte-2.90 gir1.2-webkit-3.0 gir1.2-wnck-3.0 gir1.2-xkl-1.0 git-man gjs gkbd-capplet glchess
  glib-networking glib-networking-common glib-networking-services glines gnect gnibbles gnobots2 gnome-bluetooth gnome-contacts gnome-control-center-data
  gnome-desktop3-data gnome-font-viewer gnome-icon-theme-extras gnome-icon-theme-symbolic gnome-online-accounts gnome-packagekit gnome-packagekit-data
  gnome-shell gnome-shell-common gnome-sudoku gnome-sushi gnome-themes-standard gnome-themes-standard-data gnome-user-share gnome-video-effects gnomine
  gnotravex gnotski gnuplot gnuplot-nox grilo-plugins-0.1 groff growisofs gsettings-desktop-schemas gstreamer0.10-gconf gtali guile-2.0-libs gvfs-common
  gvfs-daemons gvfs-libs hardening-includes hwdata iagno ienglish-common imagemagick-common ioquake3 ioquake3-server iputils-tracepath ipxe-qemu iw
  keyutils kmod krb5-locales lib32itm1 lib32quadmath0 lib32tinfo-dev lib32tinfo5 libaacplus2 libaacs0 libabiword-2.9 libaccountsservice0 libamd2.2.0
  libapache-pom-java libapol4 libapt-inst1.5 libapt-pkg4.12 libaqbanking-plugins-libgwenhywfar60 libaqbanking34 libaqbanking34-plugins libaqhbci20
  libaqofxconnect7 libarchive12 libasprintf0c2 libassuan0 libatk-adaptor libatk-adaptor-data libatk-bridge2.0-0 libatkmm-1.6-1 libatkmm-1.6-dev
  libatspi2.0-0 libaudiofile1 libavahi-ui-gtk3-0 libavcodec53 libavcodec54 libavformat53 libavformat54 libavutil51 libbabl-0.1-0 libbind9-80 libbison-dev
  libblas3 libbluray1 libboost-iostreams1.49.0 libboost-program-options1.49.0 libboost-python1.49.0 libboost-serialization1.49.0 libboost-thread1.49.0
  libbrasero-media3-1 libcairo-gobject2 libcairo-script-interpreter2 libcamel-1.2-33 libcanberra-dev libcanberra-gtk3-0 libcanberra-gtk3-module
  libcanberra-pulse libcapi20-3 libcaribou-common libcaribou-gtk-module libcaribou-gtk3-module libcaribou0 libccrtp0 libcdio-cdda1 libcdio-paranoia1
  libcdio13 libcfg4 libchamplain-0.12-0 libchamplain-gtk-0.12-0 libcheese-gtk21 libcheese3 libclass-factory-util-perl libclass-isa-perl libclass-load-perl
  libclass-load-xs-perl libclutter-1.0-common libclutter-gst-1.0-0 libclutter-gtk-1.0-0 libclutter-imcontext-0.1-0 libclutter-imcontext-0.1-bin
  libcluttergesture-0.0.2-0 libcmis-0.2-0 libcogl-common libcogl-pango0 libcogl9 libcolord1 libcommons-parent-java libconfdb4 libcoroipcc4 libcoroipcs4
  libcpg4 libcryptsetup4 libcrystalhd3 libcupsfilters1 libcw3 libdata-alias-perl libdatetime-format-builder-perl libdatetime-format-iso8601-perl
  libdb-java libdb5.1 libdb5.1-dev libdb5.1-java libdb5.1-java-jni libdbus-c++-1-0 libdbus-glib1.0-cil libdbus1.0-cil libdconf0 libdee-1.0-4
  libdevel-partialdump-perl libdevhelp-3-0 libdevmapper-event1.02.1 libdistro-info-perl libdmapsharing-3.0-2 libdns88 libdotconf1.0 libdvbpsi7
  libebackend-1.2-2 libebml3 libebook-1.2-13 libecal-1.2-11 libecore1 libedata-book-1.2-13 libedata-cal-1.2-15 libedataserver-1.2-16
  libedataserverui-3.0-1 libeina1 libemail-valid-perl libencode-locale-perl libepc-1.0-3 libepc-ui-1.0-3 libept1.4.12 libescpr1 libev4
  libeval-closure-perl libevdocument3-4 libevent-2.0-5 libevent-perl libevs4 libevview3-3 libexiv2-12 libexosip2-7 libexporter-lite-perl
  libexttextcat-data libexttextcat0 libfakechroot libfarstream-0.1-0 libfdk-aac0 libfdt1 libfile-basedir-perl libfile-desktopentry-perl
  libfile-fcntllock-perl libfile-listing-perl libfile-mimeinfo-perl libfltk-images1.3 libfltk1.3 libfolks-eds25 libfolks-telepathy25 libfolks25
  libfont-afm-perl libgail-3-0 libgcj13 libgcj13-awt libgck-1-0 libgconf-2-4 libgconf2-doc libgcr-3-1 libgcr-3-common libgd2-xpm libgdata13
  libgdata2.1-cil libgdict-common libgdk-pixbuf2.0-0 libgdk-pixbuf2.0-common libgdk-pixbuf2.0-dev libgegl-0.2-0 libgeocode-glib0 libgettextpo0 libgexiv2-1
  libgirepository-1.0-1 libgjs0b libgkeyfile1.0-cil libgladeui-2-0 libgladeui-common libglapi-mesa libglew1.7 libglib2.0-bin libgmime-2.6-0
  libgmime2.6-cil libgmp10 libgnome-bluetooth10 libgnome-desktop-3-2 libgnome-keyring-common libgnome-media-profiles-3.0-0 libgnome-menu-3-0 libgnomekbd7
  libgnutls-openssl27 libgnutlsxx27 libgoa-1.0-0 libgoa-1.0-common libgphoto2-l10n libgraphite2-2.0.0 libgrilo-0.1-0 libgs9 libgs9-common libgssdp-1.0-3
  libgstreamer-plugins-bad0.10-0 libgtk-3-0 libgtk-3-bin libgtk-3-common libgtk-3-dev libgtk-3-doc libgtk-sharp-beans-cil libgtk-vnc-2.0-0
  libgtkhtml-4.0-0 libgtkhtml-4.0-common libgtkhtml-editor-4.0-0 libgtkmm-3.0-1 libgtksourceview-3.0-0 libgtksourceview-3.0-common libgucharmap-2-90-7
  libgudev1.0-cil libgupnp-1.0-4 libgupnp-av-1.0-2 libgupnp-igd-1.0-4 libgusb2 libgvnc-1.0-0 libgweather-3-0 libgwenhywfar-data libgwenhywfar60 libgxps2
  libhcrypto4-heimdal libheimbase1-heimdal libhtml-form-perl libhtml-format-perl libhttp-cookies-perl libhttp-daemon-perl libhttp-date-perl
  libhttp-message-perl libhttp-negotiate-perl libhunspell-1.3-0 libicu48 libimobiledevice2 libio-aio-perl libisc84 libisccc80 libisccfg82 libiscsi1
  libiso9660-8 libisoburn1 libitm1 libjavascriptcoregtk-1.0-0 libjavascriptcoregtk-3.0-0 libjbig0 libjs-sphinxdoc libjs-underscore libjson0 libjte1
  libkadm5clnt-mit8 libkadm5srv-mit8 libkarma0 libkdb5-6 libkmod2 libkpathsea6 liblapack3 liblavfile-2.0-0 liblavjpeg-2.0-0 liblavplay-2.0-0 liblcms2-2
  liblensfun-data liblensfun0 liblinear-tools liblinear1 liblinphone4 liblockfile-bin liblogsys4 liblvm2app2.2 liblwp-mediatypes-perl
  liblwp-protocol-https-perl liblwres80 liblzma5 libmaa3 libmagick++5 libmagickcore5 libmagickcore5-extra libmagickwand5 libmath-bigint-perl
  libmath-round-perl libmatroska5 libmediastreamer1 libmhash2 libminiupnpc5 libmission-control-plugins0 libmjpegutils-2.0-0 libmodule-implementation-perl
  libmodule-runtime-perl libmono-2.0-1 libmono-2.0-dev libmono-accessibility4.0-cil libmono-cairo4.0-cil libmono-codecontracts4.0-cil
  libmono-compilerservices-symbolwriter4.0-cil libmono-corlib4.0-cil libmono-csharp4.0-cil libmono-custommarshalers4.0-cil libmono-data-tds4.0-cil
  libmono-debugger-soft2.0-cil libmono-debugger-soft4.0-cil libmono-http4.0-cil libmono-i18n-cjk4.0-cil libmono-i18n-mideast4.0-cil
  libmono-i18n-other4.0-cil libmono-i18n-rare4.0-cil libmono-i18n-west4.0-cil libmono-i18n4.0-all libmono-i18n4.0-cil libmono-ldap4.0-cil
  libmono-management4.0-cil libmono-messaging-rabbitmq4.0-cil libmono-messaging4.0-cil libmono-microsoft-build-engine4.0-cil
  libmono-microsoft-build-framework4.0-cil libmono-microsoft-build-tasks-v4.0-4.0-cil libmono-microsoft-build-utilities-v4.0-4.0-cil
  libmono-microsoft-csharp4.0-cil libmono-microsoft-visualc10.0-cil libmono-microsoft-web-infrastructure1.0-cil libmono-npgsql4.0-cil
  libmono-opensystem-c4.0-cil libmono-oracle4.0-cil libmono-peapi4.0-cil libmono-posix4.0-cil libmono-rabbitmq4.0-cil libmono-relaxng4.0-cil
  libmono-security4.0-cil libmono-sharpzip4.84-cil libmono-simd4.0-cil libmono-sqlite4.0-cil libmono-system-componentmodel-composition4.0-cil
  libmono-system-componentmodel-dataannotations4.0-cil libmono-system-configuration-install4.0-cil libmono-system-configuration4.0-cil
  libmono-system-core4.0-cil libmono-system-data-datasetextensions4.0-cil libmono-system-data-linq4.0-cil libmono-system-data-services-client4.0-cil
  libmono-system-data-services4.0-cil libmono-system-data4.0-cil libmono-system-design4.0-cil libmono-system-drawing-design4.0-cil
  libmono-system-drawing4.0-cil libmono-system-dynamic4.0-cil libmono-system-enterpriseservices4.0-cil libmono-system-identitymodel-selectors4.0-cil
  libmono-system-identitymodel4.0-cil libmono-system-ldap4.0-cil libmono-system-management4.0-cil libmono-system-messaging4.0-cil
  libmono-system-net4.0-cil libmono-system-numerics4.0-cil libmono-system-runtime-caching4.0-cil libmono-system-runtime-durableinstancing4.0-cil
  libmono-system-runtime-serialization-formatters-soap4.0-cil libmono-system-runtime-serialization4.0-cil libmono-system-runtime4.0-cil
  libmono-system-security4.0-cil libmono-system-servicemodel-discovery4.0-cil libmono-system-servicemodel-routing4.0-cil
  libmono-system-servicemodel-web4.0-cil libmono-system-servicemodel4.0-cil libmono-system-serviceprocess4.0-cil libmono-system-transactions4.0-cil
  libmono-system-web-abstractions4.0-cil libmono-system-web-applicationservices4.0-cil libmono-system-web-dynamicdata4.0-cil
  libmono-system-web-extensions-design4.0-cil libmono-system-web-extensions4.0-cil libmono-system-web-routing4.0-cil libmono-system-web-services4.0-cil
  libmono-system-web4.0-cil libmono-system-windows-forms-datavisualization4.0-cil libmono-system-windows-forms4.0-cil libmono-system-xaml4.0-cil
  libmono-system-xml-linq4.0-cil libmono-system-xml4.0-cil libmono-system4.0-cil libmono-tasklets4.0-cil libmono-web4.0-cil libmono-webbrowser2.0-cil
  libmono-webbrowser4.0-cil libmono-webmatrix-data4.0-cil libmono-windowsbase4.0-cil libmount1 libmozjs10d libmozjs17d libmozjs185-1.0 libmpeg2encpp-2.0-0
  libmplex2-2.0-0 libmtdev1 libmtp-common libmtp-runtime libmtp9 libmupen64plus2 libmusicbrainz-discid-perl libmusicbrainz5-0 libmutter0 libmx-1.0-2
  libmx-bin libmx-common libmysqlclient18 libnatpmp1 libnautilus-extension1a libnet-domain-tld-perl libnet-http-perl libnet-ip-minimal-perl libnetcf1
  libnetfilter-conntrack3 libnettle4 libnewtonsoft-json4.5-cil libnice10 libnl-3-200 libnl-genl-3-200 libnl-route-3-200 libnm-glib4 libnm-gtk-common
  libnm-gtk0 libnm-util2 libnotify4 libnspr4 libnss-winbind libnss3 libnuma1 libnunit2.6-cil liboauth0 libodbc1 liboobs-1-5 libopal3.10.4 libopenal-data
  libopus0 libosip2-7 libp11-2 libp11-kit-dev libp11-kit0 libpackage-stash-xs-perl libpackagekit-glib2-14 libpam-cap libpam-modules-bin libpam-winbind
  libpanel-applet-4-0 libparams-classify-perl libpcre3-dev libpcrecpp0 libpeas-1.0-0 libpeas-common libperl5.14 libpipeline1 libpload4 libpodofo0.9.0
  libpoe-component-resolver-perl libpoppler-glib8 libpoppler19 libportsmf0 libpostproc52 libprocps0 libpst4 libpt2.10.4 libptexenc1 libpython2.7
  libqt4-declarative libqtassistantclient4 libqtdbus4 libqtwebkit4 libquadmath0 libquicktime2 libquorum4 libquvi-scripts libquvi7 libraptor2-0 librasqal3
  libraw5 libregexp-reggrp-perl libreoffice libreoffice-base libreoffice-base-core libreoffice-calc libreoffice-common libreoffice-core libreoffice-draw
  libreoffice-emailmerge libreoffice-evolution libreoffice-filter-binfilter libreoffice-filter-mobiledev libreoffice-gnome libreoffice-gtk
  libreoffice-help-en-us libreoffice-impress libreoffice-java-common libreoffice-math libreoffice-officebean libreoffice-report-builder-bin
  libreoffice-style-galaxy libreoffice-style-tango libreoffice-writer libresid-builder0c2a librest-0.7-0 librest-extras-0.7-0 librhythmbox-core6 librpm3
  librpmbuild3 librpmio3 librpmsign1 libruby1.9.1 libsaamf3 libsackpt3 libsaclm3 libsaevt3 libsalck3 libsam4 libsamsg4 libsane-common
  libsane-extras-common libsatmr3 libsbsms10 libseed-gtk3-0 libsidplay2 libsigsegv2 libsocialweb-client2 libsocialweb-common libsocialweb-service
  libsocialweb0 libsocket-getaddrinfo-perl libsocket-perl libsonic0 libsoundtouch0 libsox2 libspeechd2 libspice-client-glib-2.0-1
  libspice-client-gtk-2.0-1 libspice-server1 libssl-doc libssl1.0.0 libstdc++6-4.7-dev libsvm-tools libswitch-perl libswscale2 libsystemd-daemon0
  libsystemd-login0 libtagc0 libtelepathy-farstream2 libtelepathy-logger2 libtest-warn-perl libtinfo-dev libtinfo5 libtirpc1 libtokyocabinet9 libtotem-pg4
  libtotem0 libtqsllib1 libtracker-sparql-0.14-0 libtree-dagnode-perl libts-dev libucommon5 libumfpack5.4.0 libunique-3.0-0 libupnp6 libusbredirhost1
  libusbredirparser0 libv4lconvert0 libverto-libev1 libverto1 libvisio-0.0-0 libvlccore5 libvo-aacenc0 libvo-amrwbenc0 libvorbisidec1 libvotequorum4
  libvpx1 libvte-2.90-9 libvte-2.90-common libwacom-common libwacom2 libwebkitgtk-1.0-0 libwebkitgtk-1.0-common libwebkitgtk-3.0-0 libwebkitgtk-3.0-common
  libwebp2 libwebrtc-audio-processing-0 libwildmidi-config libwireshark-data libwireshark2 libwiretap2 libwnck-3-0 libwnck-3-common libwpd-0.9-9
  libwpg-0.2-2 libwps-0.2-2 libwsutil2 libwv-1.2-4 libwww-robotrules-perl libx11-doc libx11-protocol-perl libx264-123 libx264-124 libx264-130 libx264-132
  libxalan2-java libxcb-composite0 libxcb-glx0 libxcb-shape0 libxcb-shm0-dev libxcb-util0 libxen-4.1 libxml-commons-external-java
  libxml-commons-resolver1.1-java libxml-sax-base-perl libxmlrpc-c++4 libxmlrpc-core-c3 libxz-java libyajl2 libyaml-0-2 libyaml-perl libyelp0 libzrtpcpp2
  libzvbi-common libzvbi0 lightsoff linphone-nogtk linux-headers-3.2.0-4-amd64 linux-headers-3.2.0-4-common linux-headers-amd64 linux-image-3.2.0-4-amd64
  linux-image-amd64 linux-kbuild-3.2 live-boot-doc live-config-doc live-manual-html mahjongg memtest86+ minissdpd mono-4.0-gac mono-dmcs mscompress
  multiarch-support mupen64plus-audio-all mupen64plus-audio-sdl mupen64plus-data mupen64plus-input-all mupen64plus-input-sdl mupen64plus-rsp-all
  mupen64plus-rsp-hle mupen64plus-rsp-z64 mupen64plus-ui-console mupen64plus-video-all mupen64plus-video-arachnoid mupen64plus-video-glide64
  mupen64plus-video-rice mupen64plus-video-z64 mutter-common mysql-client-5.5 mysql-server-5.5 mysql-server-core-5.5 mythes-en-us openarena-081-maps
  openarena-081-misc openarena-081-players openarena-081-players-mature openarena-081-textures openarena-085-data openarena-088-data packagekit
  packagekit-backend-aptcc packagekit-tools planner-data planner-doc poppler-data printer-driver-all printer-driver-c2050 printer-driver-c2esp
  printer-driver-cjet printer-driver-escpr printer-driver-foo2zjs printer-driver-gutenprint printer-driver-hpcups printer-driver-hpijs
  printer-driver-m2300w printer-driver-min12xxw printer-driver-pnm2ppa printer-driver-postscript-hp printer-driver-ptouch printer-driver-pxljr
  printer-driver-sag-gdi printer-driver-splix psutils python-aptdaemon.gtk3widgets python-aptdaemon.gtkwidgets python-bzrlib python-dbus-dev
  python-debianbts python-defer python-dnspython python-fpconst python-gi python-gi-cairo python-gi-dev python-gobject-2 python-gobject-2-dev
  python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-liblarch python-liblarch-gtk python-magic python-oauth
  python-packagekit python-pyatspi2 python-pyparsing python-repoze.lru python-routes python-setools python-simplejson python-soappy python-speechd
  python-spice-client-gtk python-wadllib python-webob python-zeitgeist python2.7 python2.7-dev python2.7-minimal qdbus quadrapassel remmina-common
  rhythmbox-data rpcbind rtkit ruby ruby1.9.1 shotwell-common smartdimmer software-properties-common sound-theme-freedesktop speech-dispatcher
  sphinx-common sphinx-doc swell-foop syslinux-themes-debian syslinux-themes-debian-wheezy tdb-tools telepathy-haze telepathy-logger telepathy-rakia
  tex-gyre ttf-marvosym wireless-regdb xbrlapi xorg-sgml-doctools xorriso xserver-xorg-input-mouse xserver-xorg-input-vmmouse xulrunner-17.0 yelp-xsl
  zeitgeist-core zenity-common
The following packages have been kept back:
  acroread-debian-files db4.8-util hibernate ia32-libs ia32-libs-gtk libboost-dev libboost-serialization-dev opensc wine
The following packages will be upgraded:
  abcde abiword abiword-common abiword-plugin-grammar abiword-plugin-mathview acpi acpi-fakekey acpi-support acpi-support-base acpid acroread-data
  acroread-dictionary-en acroread-l10n-en adduser alacarte alsa-base alsa-utils amb-plugins anacron analog ant ant-optional apache2 apache2-doc
  apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-common app-install-data apt apt-file apt-utils apt-xapian-index aptdaemon aptitude
  aqbanking-tools aspell aspell-en asterisk asterisk-config asterisk-core-sounds-en-gsm asterisk-doc asterisk-voicemail astyle at audacity audacity-data
  augeas-lenses augeas-tools autoconf autoconf-doc automake automake1.9 autopoint autotools-dev avahi-autoipd avahi-daemon avidemux avidemux-common
  avidemux-plugins aview ax25-tools banshee baobab base-files base-passwd bash bash-completion bc bind9-doc bind9-host bind9utils binfmt-support binutils
  bison bluez-cups bogofilter bogofilter-bdb bogofilter-common brasero brasero-common bridge-utils browser-plugin-gnash bsd-mailx bsdmainutils bsdutils
  busybox buzztard buzztard-data bwidget bzip2 bzr bzrtools ca-certificates calibre calibre-bin ccache cd-discid cdebootstrap cdparanoia cdrdao
  checkpolicy cheese cheese-common chromium-browser chromium-browser-inspector cifs-utils cl-asdf cli-common clisp comerr-dev common-lisp-controller
  console-common console-data console-tools consolekit coreutils cowbuilder cowdancer cpio cpp cpp-4.4 cpufrequtils cracklib-runtime crawl-common
  crawl-tiles cron cryptsetup cups cups-bsd cups-client cups-common cups-driver-gutenprint cups-pk-helper cups-ppdc cupsddk curl curlftpfs cvs cw dash
  dasher dasher-data dbus dbus-x11 dc dcraw dctrl-tools debconf debconf-i18n debhelper debian-archive-keyring debian-faq debian-keyring debianutils debirf
  debootstrap desktop-base desktop-file-utils devhelp devhelp-common devscripts dialog dict dictionaries-common diffstat diffutils djtools dkms dmidecode
  dmsetup dnsmasq-base dnsutils doc-debian docbook docbook-dsssl docbook-to-man docbook-utils docbook-xml docbook-xsl docbook-xsl-doc-html docky dosemu
  dosfstools dpatch dpkg dpkg-dev dput dvd+rw-tools dvi2ps dynagen dynamips e2fslibs e2fsprogs ebtables ed eject ekiga emacs23-bin-common emacs23-common
  emacs23-nox emacsen-common emdebian-archive-keyring empathy empathy-common eog epiphany-browser epiphany-browser-data epiphany-extensions esound-common
  espeak espeak-data ethtool evince evince-common evolution evolution-common evolution-data-server evolution-data-server-common evolution-exchange
  evolution-plugins evolution-webcal exif exiftags exim4 exim4-base exim4-config exim4-daemon-light exiv2 f-spot fakechroot fakeroot fancontrol fceu
  fcrackzip fdupes feynmf file file-roller finch findutils firmware-iwlwifi firmware-linux-free firmware-linux-nonfree flac flashrom fldigi flex
  fontconfig fontconfig-config foo2zjs foomatic-db foomatic-db-engine foomatic-db-gutenprint foomatic-filters fping freedesktop-sound-theme freeglut3
  freetds-common ftp fuse-utils g++ g++-4.4 g++-4.4-multilib g++-multilib gawk gcalctool gcc gcc-4.4 gcc-4.4-base gcc-4.4-doc gcc-4.4-multilib
  gcc-doc-base gcc-multilib gcj-jre gcj-jre-headless gconf-defaults-service gconf-editor gconf2 gconf2-common gddrescue gdebi gdebi-core gedit
  gedit-common gedit-plugins genisoimage geoclue geoclue-hostip geoclue-localnet geoclue-manual geoclue-yahoo geoip-database gettext gettext-base
  ghostscript ghostscript-cups gimp gimp-data git git-buildpackage git-core git-svn gitk gksu glade gnash gnash-common gnash-opengl
  gnome-accessibility-themes gnome-applets-data gnome-backgrounds gnome-cards-data gnome-common gnome-control-center gnome-control-center-dev
  gnome-desktop-data gnome-dictionary gnome-disk-utility gnome-do gnome-do-plugins gnome-doc-utils gnome-games gnome-games-data gnome-games-extra-data
  gnome-icon-theme gnome-js-common gnome-keyring gnome-mag gnome-media gnome-menus gnome-nettool gnome-orca gnome-panel-data gnome-pkg-tools
  gnome-power-manager gnome-rdp gnome-screensaver gnome-screenshot gnome-search-tool gnome-session gnome-session-bin gnome-session-canberra
  gnome-session-common gnome-settings-daemon gnome-settings-daemon-dev gnome-system-log gnome-system-monitor gnome-system-tools gnome-terminal
  gnome-terminal-data gnome-user-guide gnomint gnu-fdisk gnucash-docs gnuchess gnumeric gnumeric-common gnupg gnupg-agent gocr google-talkplugin gparted
  gpgv gpredict gpscorrelate grep groff-base grub-common grub-legacy gsfonts-x11 gsmartcontrol gstreamer0.10-alsa gstreamer0.10-buzztard
  gstreamer0.10-buzztard-doc gstreamer0.10-doc gstreamer0.10-ffmpeg gstreamer0.10-ffmpeg-dbg gstreamer0.10-fluendo-mp3 gstreamer0.10-gnonlin
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12 April 2014

Russell Coker: Replacement Credit Cards and Bank Failings

I just read an interesting article by Brian Krebs about the difficulty in replacing credit cards [1]. The main reason that credit cards need to be replaced is that they have a single set of numbers that is used for all transactions. If credit cards were designed properly for modern use (IE since 2000 or so) they would act as a smart-card as the recommended way of payment in store. Currently I have a Mastercard and an Amex card, the Mastercard (issued about a year ago) has no smart-card feature and as Amex is rejected by most stores I ve never had a chance to use the smart-card part of a credit card. If all American credit cards had a smart card feature which was recommended by store staff then the problems that Brian documents would never have happened, the attacks on Target and other companies would have got very few card numbers and the companies that make cards wouldn t have a backlog of orders. If a bank was to buy USB smart-card readers for all their customers then they would be very cheap (the hardware is simple and therefore the unit price would be low if purchasing a few million). As banks are greedy they could make customers pay for the readers and even make a profit on them. Then for online banking at home the user could use a code that s generated for the transaction in question and thus avoid most forms of online banking fraud the only possible form of fraud would be to make a $10 payment to a legitimate company become a $1000 payment to a fraudster but that s a lot more work and a lot less money than other forms of credit card fraud. A significant portion of all credit card transactions performed over the phone are made from the customer s home. Of the ones that aren t made from home a significant portion would be done from a hotel, office, or other place where a smart-card reader might be conveniently used to generate a one-time code for the transaction. The main remaining problem seems to be the use of raised numbers. Many years ago it used to be common for credit card purchases to involve using some form of carbon paper and the raised numbers made an impression on the credit card transfer form. I don t recall ever using a credit card in that way, I ve only had credit cards for about 18 years and my memories of the raised numbers on credit cards being used to make an impression on paper only involve watching my parents pay when I was young. It seems likely that someone who likes paying by credit card and does so at small companies might have some recent experience of carbon paper payment, but anyone who prefers EFTPOS and cash probably wouldn t. If the credit card number (used for phone and Internet transactions in situations where a smart card reader isn t available) wasn t raised then it could be changed by posting a sticker with a new number that the customer could apply to their card. The customer wouldn t even need to wait for the post before their card could be used again as the smart card part would never be invalid. The magnetic stripe on the card could be changed at any bank and there s no reason why an ATM couldn t identify a card by it s smart-card and then write a new magnetic stripe automatically. These problems aren t difficult to solve. The amounts of effort and money involved in solving them are tiny compared to the costs of cleaning up the mess from a major breach such as the recent Target one, the main thing that needs to be done to implement my ideas is widespread support of smart-card readers and that seems to have been done already. It seems to me that the main problem is the incompetence of financial institutions. I think the fact that there s no serious competitor to Paypal is one of the many obvious proofs of the incompetence of financial companies. The effective operation of banks is essential to the economy and the savings of individuals are guaranteed by the government (so when a bank fails a lot of tax money will be used). It seems to me that we need to have national banks run by governments with the aim of financial security. Even if banks were good at their business (and they obviously aren t) I don t think that they can be trusted with it, an organisation that s too big to fail is too big to lack accountability to the citizens.
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11 April 2014

Andrew Pollock: [life] Day 73: A fourth-generation friendship

Oh man, am I exhausted. I've known my friend Kim for longer than we remembered. Until Zoe was born, I thought the connection was purely that our grandmothers knew each other. After Zoe was born, and we gave her my birth mother's name as her middle name, Kim's mother sent me a message indicating that she knew my mother. More on that in a moment. Kim and I must have interacted when we were small, because it predates my memory of her. My earliest memories are of being a pen pal with her when she lived in Kingaroy. She had a stint in South Carolina, and then in my late high school years, she moved relatively close to me, at Albany Creek, and we got to have a small amount of actual physical contact. Then I moved to Canberra, and she moved to Melbourne, and it was only due to the wonders of Facebook that we reconnected while I was in the US. Fast forward many years, and we're finally all back in Brisbane again. Kim is married and has a daughter named Sarah who is a couple of years older than Zoe, and could actually pass of as her older sister. She also has as a younger son. Since we've been back in Brisbane, we've had many a play date at each other's homes, and the girls get along famously, to the point where Sarah was talking about her "best friend Zoe" at show and tell at school. The other thing I learned since reconnecting with Kim in the past year, is that Kim's aunt and my mother were in the same grade at school. Kim actually arranged for me to have a coffee with her aunt when she was visiting from Canberra, and she told me a bunch of stuff about my Mum that I didn't know, so that was really nice. Kim works from home part time, and I offered to look after Sarah for a day in the school holidays as an alternative to her having to go to PCYC holiday care. Today was that day. I picked up Zoe from Sarah this morning, as it was roughly in the same direction as Kim's place, and made more sense, and we headed over to Kim's place to pick up Sarah. We arrived only a couple of minutes later than the preferred pick up time, so I was pretty happy with how that worked out. The plan was to bring Sarah back to our place, and then head over to New Farm Park on the CityCat and have a picnic lunch and a play in the rather fantastic playground in the park over there. I hadn't made Zoe's lunch prior to leaving the house, so after we got back home again, I let the girls have a play while I made Zoe's lunch. After some play with Marble Run, the girls started doing some craft activity all on their own on the balcony. It was cute watching them try to copy what each other were making. One of them tried gluing two paper cups together by the narrow end. It didn't work terribly well because there wasn't a lot of surface to come into contact with each other. I helped the girls with their craft activity briefly, and then we left on foot to walk to the CityCat terminal. Along the way, I picked up some lunch for myself at the Hawthorne Garage and added it to the small Esky I was carrying with Zoe's lunchbox in it. It was a beautiful day for a picnic. It was warm and clear. I think Sarah found the walk a bit long, but we made it to the ferry terminal relatively incident free. We got lucky, and a ferry was just arriving, and as it happened, they had to change boats, as they do from time to time at Hawthorne, so we would have had plenty of time regardless, as everyone had to get off one boat and onto a new one. We had a late morning tea at the New Farm Park ferry terminal after we got off, and then headed over to the playground. I claimed a shady spot with our picnic blanket and the girls did their thing. I alternated between closely shadowing them around the playground and letting them run off on their own. Fortunately they stuck together, so that made keeping track of them slightly easier. For whatever reason, Zoe was in a bit of a grumpier mood than normal today, and wasn't taking too kindly to the amount of turn taking that was necessary to have a smoothly oiled operation. Sarah (justifiably) got a bit whiny when she didn't get an equitable amount of time getting the call the shots on what the they did, but aside from that they got along fine. There was another great climbing tree, which had kids hanging off it all over the place. Both girls wanted to climb it, but needed a little bit of help getting started. Sarah lost her nerve before Zoe did, but even Zoe was a surprisingly trepidatious about it, and after shimmying a short distance along a good (but high) branch, wanted to get down. The other popular activity was a particularly large rope "spider web" climbing frame, which Sarah was very adept at scaling. It was a tad too big for Zoe to manage though, and she couldn't keep up, which frustrated her quite a bit. I was particularly proud of how many times she returned to it to try again, though. We had our lunch, a little more play time, and the obligatory ice cream. I'd contemplated catching the CityCat further up-river to Sydney Street to then catching the free CityHopper ferry, but the thought of then trying to get two very tired girls to walk from the Hawthorne ferry terminal back home didn't really appeal to me all that much, so I decided to just head back home. That ended up being a pretty good call, because as it was, trying to get the two of them back home was like herding cats. Sarah was fine, but Zoe was really dragging the chain and getting particularly grumpy. I had to deploy every positive parenting trick that I currently have in my book to keep Zoe moving, but we got there eventually. Fortunately we didn't have any particularly deadline. The girls did some more playing at home while I collapsed on the couch for a bit, and then wanted to do some more craft. We made a couple of crowns and hot-glued lots of bling onto them. We drove back to Kim's place after that, and the girls played some more there. Sarah nearly nodded off on the way home. Zoe was surprisingly chipper. The dynamic changed completely once we were back at Sarah's house. Zoe seemed fine to take Sarah's direction on everything, so I wonder how much of things in the morning were territorial, and Sarah wasn't used to Zoe calling the shots when she was at Zoe's place. Kim invited us to stay for dinner. I wasn't really feeling like cooking, and the girls were having a good time, so I decided to stay for dinner, and after they had a bath together we headed home. Zoe stayed awake all the way home, and went to bed without any fuss. It's pretty hot tonight, and I'm trialling Zoe sleeping without white noise, so we'll see how tonight pans out.

Dirk Eddelbuettel: RcppCNPy 0.2.3

R 3.1.0 came out today. Among the (impressive and long as usual) list of changes is the added ability to specify CXX_STD = CXX11 in order to get C++11 (or the best available subset on older compilers). This brings a number of changes and opportunities which are frankly too numerous to be discussed in this short post. But it also permits us, at long last, to use long long integer types. For RcppCNPy, this means that we can finally cover NumPy integer data (along with the double precision we had from the start) on all platforms. Python encodes these as an int64, and that type was unavailable (at least in 32-bit OSs) until we got long long made available to us by R. So today I made the change to depend on R 3.1.0, and select C++11 which allowed us to free the code from a number if #ifdef tests. This all worked out swimmingly and the new package has already been rebuilt for Windows. I also updated the vignette, and refreshed its look and feel. Full changes are listed below.
Changes in version 0.2.3 (2014-04-10)
  • src/Makevars now sets CXX_STD = CXX11 which also provides the long long type on all platforms, so integer file support is no longer conditional.
  • Consequently, code conditional on RCPP_HAS_LONG_LONG_TYPES has been simplified and is no longer conditional.
  • The package now depends on R 3.1.0 or later to allow this.
  • The vignette has been updated and refreshed to reflect this.
CRANberries also provides a diffstat report for the latest release. As always, feedback is welcome and the rcpp-devel mailing list off the R-Forge page for Rcpp is the best place to start a discussion.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

10 April 2014

Michal &#268;iha&#345;: Heartbleed fun

You probably know about heartbleed bug in OpenSSL as it is so widespread that it got to mainstream medias as well. As I'm running Debian Wheezy on my servers, they were affected as well. The updated OpenSSL library was installed immediately after it has been released, but there was still option that somebody got private data from the server before (especially as the vulnerability exists for quite some time). So I've revoked and reissued all SSL certificates while regenerating new private keys. This has nice benefit that they now use SHA 256 intermediate CA compared to SHA 1 which was used on some of them before. Though there is no way to figure out whether there was some information leak or not, I have decided to reset all access tokens for OAuth (eg. GitHub), so if you have used GitHub login for Weblate, you will have to reauthenticate.

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9 April 2014

Dirk Eddelbuettel: BH release 1.54.0-1

A new release of the BH package is now on CRAN and its mirrors. BH provides (a sizeable subset of) the Boost library for C++, particularly (large) parts delivered as pure template headers not requiring linking. See the BH page for more details. This release provides our first update relative to the Boost tarballs we started with. It moves us from 1.51.0 (which was getting a little long in the tooth) to 1.54.0. This is just about the first time ever that I didn't package something straight from the current release (now 1.55.0). My aim was to to balance the oh, shiny, new aspect with some stability. Comments welcome--maybe I will go to the bleeding edge next time. As before, the CRAN is created by running bcp over a number of selected components of Boost. If you'd like to see additional ones include, please do get in touch too. Before uploading, I also tested against all of these sixteen CRAN dependents I could quickly test on my server given the installed dependencies there. The complete list changes follows below.
Changes in version 1.54.0-1 (2014-04-07)
  • Upgraded to Boost 1.54.0
  • Adjust build script local/script/CreateBoost.sh accordingly
  • Renamed generation_runge_kutta_cash_karp54_classic.hpp to generation_runge_kutta_cash_karp54_cl.hpp to remain within 100-character limit for tar
Courtesy of CRANberries, there is also a diffstat report for the most recent release. Comments and suggestions are welcome via the mailing list or issue tracker at the GitHub repo.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

8 April 2014

Daniel Pocock: reConServer for easy SIP conferencing

In the lead up to the release of Debian wheezy, there was quite some debate about the Mumble conferencing software which uses the deprecated and unsupported CELT codec. Although Mumble has very recently added Opus support, it is still limited by the fact that it is a standalone solution without any support for distributed protocols like SIP or XMPP. Making SIP conferencing easy Of course, people could always set up SIP conferences by installing Asterisk but for many use cases that may be overkill and may simply introduce alternative security and administration overheads. Enter reConServer The popular reSIProcate SIP stack includes a high-level programming API, the Conversation Manager, dubbed librecon. It was developed and contributed to the open source project by Scott Godin of SIP Spectrum. In very simple terms, a Conversation object with two Participants is a phone call. A Conversation object with more than two Participants is a conference. The original librecon includes a fully functional demo app, testUA that allows you to control conferences from the command line. As part of Google Summer of Code 2013, Catalin Constantin Usurelu took the testUA.cxx code and converted it into a proper daemon process. It is now available as a ready-to-run SIP conferencing server package in Debian and Ubuntu. The quick and easy way to try it Normally, a SIP conferencing server will be linked to a SIP proxy and other infrastructure. For trying it out quickly, however, no SIP proxy is necessary. Simply install the package with the default settings and then configure a client to talk to the reConServer directly by dialing the IP address of the server. For example, set the following options in /etc/reConServer/reConServer.config: 
UDPPort = 5062
EnableAutoAnswer = true
and it will happily accept all SIP calls sent to the IP address where it is running. Now configure Jitsi to talk to it directly in serverless SIP configuration: Notice here that we simply put a username without any domain part, this tells Jitsi to create an account that can operate without a SIP proxy or registration server: Calling in to the conference Notice in the screenshot below we simply dial the IP address and port number of the reConServer process, sip:192.168.1.100:5062. When the first call comes in, reConServer will answer and place the caller on hold. When the next caller arrives, the hold should automatically finish and audio will be heard. Next steps To make it run as part of a proper SIP deployment, set the necessary configuration options (username, password, proxy) to make reConServer register to the SIP proxy. Users can then call the conference through the proxy. To discuss any problems or questions, please come and join the recon-users mailing list or the Jitsi users list Consider using Wireshark to observe the SIP packets and learn more about the protocol.

Andrew Pollock: [life] Day 70: Visiting relatives and home visiting doctors

Zoe did indeed sleep in this morning, by a whole 30 minutes. It was nice. She seemed no worse for wear for her lip injury, and it was looking better this morning. Wow, "bimonthly" is ambiguous. I had my "every two month" in person co-parenting sync up lunch with Sarah today. Phew, that was a mouthful. Anyway, I had that today, and normally that would fall on a Kindergarten day, but it's school holidays. So we paid grandma and grandpa a visit, and they looked after Zoe for me so I could make the meeting. Mum and Dad have been away on a driving holiday, so Zoe hasn't seen them for a while, and it's been even longer since we've been to their house. She really loves going to their house because it's big, with a big back yard with a swing set. There's all sorts of exciting things like grandpa's worm farm, a sand pit, a china tea set, a piano, a tricycle and remote controlled cars. Zoe basically just works her way around the house entertaining herself. It's great. I usually get to put my feet up and read the newspaper. After I got back from my lunch meeting, we headed over to Greenslopes Private Hospital to visit my cousin, who's just had major surgery. On the way, Zoe napped in the car. I made a brief side trip to clear my post office box along the way. Amusingly, Zoe wakes up from short naps in the car way better than at Kindergarten. I don't know if it has anything to do with the quality of sleep she's getting or what it is, but I easily woke her up and extracted her from the car when we arrived at the hospital. No meltdowns. And that's pretty typical of car naps. I've had a discomfort in my right ear for the last couple of days, and it grew into increasing pain throughout the day today. It got to the point where, while I was driving home, that I deciding to get it looked at by a doctor, ASAP. One of my favourite things about being back in Australia is the availability of home visiting doctors. It was actually faster and cheaper for me to get a home doctor out to look at me tonight than it was to get an appointment with my regular doctor. I wouldn't have gotten an appointment until some time tomorrow at the earliest (assuming he had appointments available), because I made the decision to see a doctor after 5pm, when they'd closed. Instead, I had a doctor at my door in a little more than 2 hours of making the request. It also worked out cheaper, because the home doctor bulk bills Medicare, whereas my regular doctor does not. Add in the massive convenience of not having to lug a small child anywhere while I get seen by a doctor, and it's a major convenience. I love socialised healthcare. It turned out I have an outer ear infection. So all we had to do after the doctor came was find a pharmacy that was still open after 7pm to get my ear drop prescription filled. All of that mucking around meant that Zoe got to bed a little later than usual. It's another cool night tonight, so I'm hoping she'll sleep well and have another sleep in.

Russ Allbery: Review: With Charity for All

Review: With Charity for All, by Ken Stern
Publisher: Anchor
Copyright: November 2013
ISBN: 0-307-74381-0
Format: Trade paperback
Pages: 244
I've been reading a lot lately about how to measure charitable organizations and where best to give your money, which has already prompted a rethinking of which organizations I want to support. Most of that has been shorter, on-line blog posts, but I've been wanting a deeper analysis. This is the first of a couple of books I've found on the topic. (The second, an analysis of microfinance, is waiting for me to have more time to read.) For this kind of book, the background of the author matters a lot. Stern was the former CEO of National Public Radio for eight and a half years, so he has practical experience in the business side of non-profits. He's credited with improving NPR's financial position and management and oversaw an era of rapid growth. In With Charity for All, he speaks frankly about his own personal experiences as well as his research. My impression is that he's typical of competent business managers of non-profits: not particularly radical, focused mostly on business issues, and the sort of person that a non-profit needs to turn a mission or cause into a sustainable organization. It's worth noting in advance that With Charity for All is specifically about the United States charitable sector and US laws and approaches. Some of this may generalize to other countries, but non-profit and charity law is very different between different countries, and the US attitude towards government, non-profits, and the appropriate division of responsibilities between them often doesn't match the prevailing view elsewhere. This book may well be interesting to people outside the US, but only if they're curious about the US charitable sector. The short summary of the message of this book is that we're not getting our money's worth out of charity, either as donors or as taxpayers who are indirectly subsidizing these organizations. This is not (usually) due to any outright fraud, although there certainly is some of that due to the almost total lack of oversight of charitable organizations. Rather, it's the result of a complex combination of history and institutional momentum, focus on the aspects of a charity that play well to potential donors, a concerted effort at feel-good marketing, well-intentioned but misguided donor dictates, adoption of approaches and business practices from the for-profit sector, and, above everything else, the almost complete absence of evidence-based evaluation of charities. Evidence-based evaluation is currently a hot trend among charities. I heard about this book via one of the organizations that is focusing on this (GiveWell). This is not what sites like Charity Navigator do, and indeed Stern talks at some length about the serious limitations of the Charity Navigator approach. All that sites of that type can do is look at spending breakdowns. Stern makes a strong argument that a focus on reducing overhead, as measured by those financial forms, is misguided and leads to very ineffective and unorganized charities. Worse, all Charity Navigator can tell you is if the charity is spending money on something they declare to be in line with their goal, not whether that money did any good whatsoever. The short and depressing news is that most of that money does little or no good, and worse, that most charities have no systematic way of measuring whether it does any good. I'm particularly interested in how to ground charities in more concrete evidence, and Stern's discussion does not disappoint. But one of the things I liked about the book is that he doesn't stop there. Other topics include the dizzying variety of charities and the resulting confusion and dispersion of resources, the non-profits that are practically indistinguishable from for-profit companies except that they get huge tax breaks (sports organizations, as you might expect, are probably the worst offenders, but Stern has harsh commentary on the US hospital system), the mess of compensation in the non-profit sector, and the serious problems created by major donors who want to get directly involved and oversee how their money is spent. All of these topics are fascinating, if a bit depressing in the aggregate. As is typical for a book of this sort, it's a lot easier to see the problems than to describe the solutions. Stern does try to offer his own prescriptions, most of which are variations on more oversight: more regulation, more effort put into measuring results, more concrete standards for success or failure, and a stronger culture of treating tax-exempt status as a privilege, not a right, that has to be defended by showing clear social benefit. I'm convinced those steps would be helpful, although less convinced that we're able to get there from here. One of his ideas I am already using on a small scale: pooling charitable donations with professional evaluators who can take the time to look deeper than financial breakdowns and do some independent measurement of results, or at least survey relevant studies done by others and possibly demand more be done. This model of a mutual fund for charitable giving has some promise, I think (more than a managed mutual fund, in fact), and is very similar to what GiveWell is doing. This is an advocacy book, and one that's primarily focused on concrete, measurable deliverables and on the finances. There are a few places where I have reason to be dubious of the black-and-white conclusions Stern draws. For example, he makes much of the bill collecting practices of charitable hospitals, which I agree is a travesty, but doesn't mention that non-profit hospitals produce better health outcomes. I'm also not sure his analysis is as directly applicable to advocacy organizations, where measuring success is a much more challenging proposition. I think the Southern Poverty Law Center is one of the best charities in the United States (admittedly based largely on gut feeling and presentation), but the nature of their work is not amenable to the style of analysis that Stern is doing here. It's therefore worth taking this book with a grain of salt. But, that said, Stern's conclusions are in line with things I've read elsewhere. I think he's pointing in the right direction, and I would recommend this book to anyone who gives regularly to charity. Hopefully it won't just cause you to stop. There are charities out there that are trying hard to measure their results and ensure they deliver social value for the money that we give them. Our system just doesn't support them very well, yet. Rating: 8 out of 10

Dirk Eddelbuettel: RcppArmadillo 0.4.200.0

Conrad released a new upstream release 4.200 for Armadillo, his templated C++ library for linear algebra, earlier today. As usual, this was rolled up in a new RcppArmadillo release 0.4.200.0; I had actually made two pre-releases leading up his 4.200 release and was hence not expecting any surprises. Prior to uploading to CRAN, I also tested against all 61 reverse dependencies of the package. Last but not least, I also updated the corresponding Debian package.
Changes in RcppArmadillo version 0.4.200.0 (2014-04-07)
  • Upgraded to Armadillo release Version 4.200 (Flintlock Swoop)
    • faster transpose of sparse matrices
    • more efficient handling of aliasing during matrix multiplication
    • faster inverse of matrices marked as diagonal
Courtesy of CRANberries, there is also a diffstat report for the most recent release As always, more detailed information is on the RcppArmadillo page. Questions, comments etc should go to the rcpp-devel mailing list off the R-Forge page.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

7 April 2014

Yves-Alexis Perez: CVE-2014-0160 / heartbleed

Short version: DSA should be in your INBOX in a few moments, and the updates on the mirror a moment later. [UPDATE Tue, 08 Apr 2014 01:06:42 +0200] After the upgrade, you really need to restart all TLS application using libssl1.0.0 to get the fix. Usual suspects are webservers, mailservers etc. Don't forget to restart clients too. Easiest way is to completely reboot the sever, but in case that's not a solution, you can check the process still using the old library with the following snippet:

grep -l 'libssl.*deleted' /proc/*/maps tr -cd 0-9\\n xargs -r ps u Some people seem to indicate that the 64kB leak can enable an attacker to get pretty much anything from the process memory space, including the certificate private key. While we weren't able to confirm that yet, that's not really impossible, so you might also want to regenerate those private keys, although that's not something you should do in a rush either.

Holger Levsen: 20140407-some-jenkins-activities

Some jenkins.debian.net activities Yesterday and today I've spent some time time on jenkins.debian.net, so that it's finally only available via https, or so I thought. I quickly learned that it's better still serving via http, but only when queried from localhost :) Second, I've moved the git repo to QA group namespace on alioth and set up IRC notifications using the wonderful KGB client. There is no mailinglist which receives commit diffs yet, but thats also because it's mostly still me working on this. Though since yesterday there are now seven committers in the git history, which is two more than before: Niels Thykier submitted job configuratios for running the lintian testsuite on stable, testing and sid on every commit to the lintian git repo. The test suite passes nicely on testing and unstable but fails for stable as it needs backports and we need to make the job to install those. Gabriele Giacone submitted several patches so that soon hurd wgnu/hurd can be tested too. Currently this fails for two reasons, both of which are very temporarily: the hurd .iso image which was here this morning is gone now, and secondly I haven't installed (the locally build packages for) qemu and qemu-kvm packages with the fixes for #742386 as that .iso ain't there so this is pointless atm ;-) But I'm very happy to have a hopefully soon working job which will regularily test installation of Debian hurd and I do hope that some Debian kfreebsd enthusiasts will pick up and fix the existing jobs for kfreebsd tests. (Hint hint hint! I'm also totally happy to help with that!) This reminds me to mention one last bit: Thanks to Paul Wise, jenkins.d.n bugs are now tracked in the BTS among other Debian QA group bugs!

6 April 2014

Russell Coker: Finding Corrupt Files that cause a Kernel Error

There is a BTRFS bug in kernel 3.13 which is triggered by Kmail and causes Kmail index files to become seriously corrupt. Another bug in BTRFS causes a kernel GPF when an application tries to read such a file, that results in a SEGV being sent to the application. After that the kernel ceases to operate correctly for any files on that filesystem and no command other than reboot -nf (hard reset without flushing write-back caches) can be relied on to work correctly. The second bug should be fixed in Linux 3.14, I m not sure about the first one. In the mean time I have several systems running Kmail on BTRFS which have this problem. (strace tar cf . cat > /dev/null) 2>&1 tail To discover which file is corrupt I run the above command after a reboot. Below is a sample of the typical output of that command which shows that the file named .trash.index is corrupt. After discovering the file name I run reboot -nf and then delete the file (the file can be deleted on a clean system but not after a kernel GPF). Of recent times I ve been doing this about once every 5 days, so on average each Kmail/BTRFS system has been getting disk corruption every two weeks. Fortunately every time the corruption has been on an index file so I don t need to restore from backups. newfstatat(4, ".trash.index", st_mode=S_IFREG 0600, st_size=33, , AT_SYMLINK_NOFOLLOW) = 0
openat(4, ".trash.index", O_RDONLY O_NOCTTY O_NONBLOCK O_NOFOLLOW O_CLOEXEC) = 5
fstat(5, st_mode=S_IFREG 0600, st_size=33, ) = 0
read(5, <unfinished >
+++ killed by SIGSEGV +++
Related posts:
  1. Bizarre No space left on device error from Xen What should have been a routine remove DIMMs and run...
  2. BTRFS Status March 2014 I m currently using BTRFS on most systems that I can...
  3. Kernel Security vs Uptime For best system security you want to apply kernel security...

4 April 2014

Daniel Pocock: Best real-time communication (RTC / VoIP) softphone on the Linux desktop?

The Debian community has recently started discussing the way to choose the real-time communications (RTC/VoIP) desktop client for Debian 8 (jessie) users. Debian 7 (wheezy), like Fedora, ships GNOME as the default desktop and the GNOME Empathy client is installed by default with it. Simon McVittie, Empathy package maintainer has provided a comprehensive response to the main discussion points indicating that the Empathy project comes from an Instant Messaging (IM) background (it is extremely easy to setup and use for XMPP chat) but is not a strong candidate for voice and video. Just how to choose an RTC/VoIP client then? One question that is not answered definitively is just who should choose the default RTC client. Some people have strongly argued that the maintainers of individual desktop meta-packages should choose as they see fit. Personally, I don't agree with this viewpoint and it is easy to explain why. Just imagine the maintainers of GNOME choose one RTC application and the maintainers of XFCE choose an alternative and these two RTC applications don't talk to each other. If a GNOME user wants to call an XFCE user, do they have to go to extra effort to get an extra package installed? Do they even have to change their desktop? For power users these questions seem trivial but for many of our friends and family who we would like to contact with free software, it is not amusing. When the goal of the user is to communicate freely and if they are to remain free to choose any of the desktops then a higher-level choice of RTC client (or at least a set of protocols that all default clients must support) becomes essential. Snail mail to the rescue? There are several friends and family I want to be able to call with free software. The only way I could make it accessible to them was to burn self-booting Debian Live desktop DVDs with an RTC client pre-configured. Once again, as a power-user maybe I have the capability to do this - but is this an efficient way to overcome those nasty proprietary RTC clients, burning one DVD at a time and waiting for it to be delivered by snail mail? A billion browsers can't be wrong WebRTC has been in the most recent stable releases of Firefox/Iceweasel and Chrome/Chromium for over a year now. Many users already have these browsers thanks to automatic updates. It is even working well on the mobile versions of these browsers. In principle, WebRTC relies on existing technologies such as the use of RTP as a transport for media streams. For reasons of security and call quality, the WebRTC standard mandates the use of several more recent standards and existing RTC clients simply do not interoperate with WebRTC browsers. It really is time for proponents of free software to decide if they want to sink or swim in this world of changing communications technology. Browsers will not dumb-down to support VoIP softphones that were never really finished in the first place. Comparing Empathy and Jitsi There are several compelling RTC clients to choose from and several of them are now being compared on the Debian wiki. Only Jitsi stands out offering the features needed for a world with a billion WebRTC browser users.
Feature Empathy WebRTC requirement? Comments
Internet Connectivity Establishment (ICE) and TURN (relay) Only for gmail XMPP accounts, and maybe not for much longer For all XMPP users with any standards-based TURN server, soon for SIP too Mandatory Enables effective discovery of NAT/firewall issues and refusal to place a call when there is a risk of one-way-audio. Some legacy softphones support STUN, which is only a subset of ICE/TURN.
AVPF X Mandatory Enables more rapid feedback about degrading network conditions, packet loss, etc to help variable bit rate codecs adapt and maximise call quality. Most legacy VoIP softphones support AVP rather than AVPF.
DTLS-SRTP X Mandatory for Firefox, soon for Chrome too DTLS-based peer-to-peer encryption of the media streams. Most legacy softphones support no encryption at all, some support the original SRTP mechanism based on SDES keys exchanged in the signalling path.
Opus audio codec X Strongly recommended. G.711 can also be used but does not perform well on low bandwidth/unreliable connections Opus is a variable bit rate codec the supercedes codecs like Speex, SILK, iLBC, GSM and CELT. It is the only advanced codec browsers are expected or likely to implement. Most of the legacy softphones support the earlier codec versions (such as GSM) and some are coded in such a way that they can't support any variable bit-rate codec at all.
Retrofitting legacy softphones with all of these features is no walk in the park. Some of them may be able to achieve compliance more easily by simply throwing away their existing media code and rebuilding on top of the WebRTC media stack used by the browsers However, the Jitsi community have already proven that their code can handle all of these requirements by using their media processing libraries to power their JitMeet WebRTC video conferencing server Dreams are great, results are better Several people have spoken out to say they want an RTC client that has good desktop integration (just like Empathy) but I'm yet to see any of them contribute any code to such an effort. Is this type of desktop integration the ultimate priority and stubbornly non-negotiable though? Is it more an example of zealous idealism that may snuff out hope of bringing the optimum communications tools into the hands of users? As for solving all the other problems facing free communications software, the Jitsi community have been at it for more than 10 years. Just have a look at their scorecard on Github to see what I mean. Jitsi lead developer Emil Ivov has a PhD in multimedia and is a regular participant in the IETF, taking on some of the toughest questions, like how to make a world with two protocols (SIP and XMPP) friendly for real users. A serious issue for all Linux distributions Communications technology is one of the most pervasive applications and also one of the least forgiving. Users have limited patience with phones that don't work, as the Australian Russell Crowe demonstrated in his infamous phone-throwing incident. Maximizing the number of possible users is the key factor that makes networks fail or succeed. It is a knife that cuts both ways: as the free software community struggles with this issue, it undermines our credibility on other issues and makes it harder to bring free desktops to our friends, families and workplaces. Do we really want to see the rest of our work in these areas undermined, especially when there is at least one extremely viable option knocking at the door?

Michael Vogt: apt 1.0

APT 1.0 was released on the 1. April 2014 [0]! The first APT version was announced on the 1. April exactly 16 years ago [1]. The big news for this version is that we included a new apt binary that combines the most commonly used commands from apt-get and apt-cache. The commands are the same as their apt-get/apt-cache counterparts but with slightly different configuration options. Currently the apt binary supports the following commands: Here is what the new progress looks like in 1.0:
apt-progress You can enable/disable the install progress via: 
# echo 'Dpkg::Progress-Fancy "1";' > /etc/apt/apt.conf.d/99progressbar
If you have further suggestions or bugreport about APT, get in touch and most importantly, have fun!

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