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Re: [arch-announce] Increasing the default vm.max_map_count value
by Genes Lists 12 Apr '24

12 Apr '24

On Sun, 2024-04-07 at 18:12 +0000, Arch Linux: Recent news updates: Robin Candau wrote: > The [vm.max_map_count][1] paramater will be increased from the > default `65530` value to `1048576`. > > This change should help address performance, crash or start-up issues > for a number of memory intensive applications, Performance improvement is unlikely but could allow something to run that otherwise would not. The lkml comment [1] is worth a read and includes : "To be clear, what you are doing here is akin to adding more memory to your system when there is a memory leak. This is not the solution you should be pushing. Ironically, this is using more memory and performing worse than it should. At best, the limit increase is a workaround for buggy programs." As Robin said, setting the max higher is probably benign - and only impacts a system running the problematic software (games). Nonetheless, it is very simple to change it to whatever value you want with your own prefs dropped into /etc/sysctl.d/xxx.conf gene [1] https://lore.kernel.org/lkml/566168554.272637693.1710968734203.Jav aMail.root@zimbra54- e10.priv.proxad.net/T/#m1905a48f415bc6e8069a8fe53dec44bc311571f2 -- Gene

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PAM 1.6 breaks limits.conf parsing
by Simone Baratta 12 Apr '24

12 Apr '24

Howdy, Arch community! Today Ardour warned me that I had a ulimit enforced for locked memory, and indeed I was surprised to find that `ulimit -l` reported 8192 for my user (which I configured to `unlimited` a long time ago). After a bit of investigation, it turned out that this is a bug introduced by PAM 1.6, which fails to read my limits.conf file due to the extra whitespace separating entries: ``` @audio - memlock unlimited ``` This makes pam_limits.so fail with the following: ``` pam_limits(login:session): wrong limit value ' unlimited' for limit type '-' ``` Looks like this issue was introduced with [1], and indeed I can confirm that it's fixed by [2] which references the first commit. Is there any chance we can get a 1.6.0-5 update with this patch in? This version is already in core, and it's a very subtle issue which is likely to be unnoticed by many but come with a lot of (possibly security-relevant) side effects. [1] https://github.com/linux-pam/linux-pam/commit/eec4358a49dc0d6d699532965f453… [2] https://github.com/linux-pam/linux-pam/commit/9228077d762fc94ebc8d9fb4edfe9… Thanks! -- Simone

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Building qt-5 packages from PKGBUILD
by Pocket 12 Apr '24

12 Apr '24

I have a project where I am building arch packages for raspberry pi's 4/5. Building the base and devtools with all there dependencies I have 2477 completed with some packages being complete failures. In the qt5-* PKGBUILD most fail due to the wrong directory For example in qt5-tools: Build function qmake ../${_pkgfqn} CONFIG+=fat-static-lto should be qmake ../kde-${_pkgfqn} CONFIG+=fat-static-lto ^^^^ and in the package function cd ../${_pkgfqn} should be cd ../kde-${_pkgfqn} ^^^^ It appears that many of these packages that have this issue and I have not found the all as I am just being to build these. -- Hindi madali ang maging ako

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An Intro from A Debian User
by Chime Hart 11 Apr '24

11 Apr '24

Well, 2nd try, as I must have posted to the subscription address instead. I am still running Debian SID on my main machine with a screen-reader, Speakup, as I am totally blind. Meanwhile, I wanted to try a newer screen-reader, called Fenrir on a laptop. So, we switched over to Arch. While at times I find the 2 package managers confusing, I like an aspect of a much newer kernel. An issue, I cannot find a smaller font which will provide many more lines. So far only 67, but when I was in Debian with this same laptop, I had 135. Can any1 please suggest a font which will do the trick? Storm, who maintains Fenrir says I would need a font which supports utf8, so Fenrir will read. I am having glowing support from Storm as well as Didier, an author of Slint, another accessable distro. Thanks so much in advance Chime

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ipset enabled fails to restore /etc/ipset.conf
by David C. Rankin 11 Apr '24

11 Apr '24

All, I've setup a blocklist (hash:net) a whitelist (hash:ip) and a whitelistnet (hash:net) with ipset. It works quite well added to the stateful firewall. However ipset restore fails: 18:02 valkyrie:~> scs ipset × ipset.service - Loading IP Sets Loaded: loaded (/usr/lib/systemd/system/ipset.service; enabled; preset: disabled) Active: failed (Result: exit-code) since Wed 2024-04-10 17:06:05 CDT; 56min ago Process: 1399 ExecStart=/usr/bin/ipset -f /etc/ipset.conf restore (code=exited, status=2) Main PID: 1399 (code=exited, status=2) CPU: 3ms Apr 10 17:06:05 valkyrie systemd[1]: Starting Loading IP Sets... Apr 10 17:06:05 valkyrie ipset[1399]: ipset v7.20: No command specified: unknown argument Name: Apr 10 17:06:05 valkyrie ipset[1399]: Try `ipset help' for more information. Apr 10 17:06:05 valkyrie systemd[1]: ipset.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Apr 10 17:06:05 valkyrie systemd[1]: ipset.service: Failed with result 'exit-code'. Apr 10 17:06:05 valkyrie systemd[1]: Failed to start Loading IP Sets. The sets cannot manually be restored with ipset restore (or ipset restore -file ipset.conf). It results in the same error: # ipset restore <ipset.conf ipset v7.20: No command specified: unknown argument Name: Try `ipset help' for more information. As does: # ipset restore -f ipset.conf ipset v7.20: No command specified: unknown argument Name: Try `ipset help' for more information. The content of the ipset save > ipset.conf file is the same as ipset list, and looks fine, e.g. # cat /etc/ipset.conf Name: blocklist Type: hash:net Revision: 7 Header: family inet hashsize 1024 maxelem 65536 bucketsize 12 initval 0xf3661058 Size in memory: 8856 References: 0 Number of entries: 194 Members: 167.94.138.0/24 199.45.154.0/23 43.130.0.0/18 43.129.192.0/18 43.157.32.0/24 <snip> Name: whitelist Type: hash:ip Revision: 6 Header: family inet hashsize 1024 maxelem 65536 bucketsize 12 initval 0xfa0e1f24 Size in memory: 1816 References: 0 Number of entries: 42 Members: 212.187.231.66 93.93.130.214 151.101.129.91 91.193.113.65 87.238.57.227 93.93.130.133 <snip> Name: whitelistnet Type: hash:net Revision: 7 Header: family inet hashsize 1024 maxelem 65536 bucketsize 12 initval 0xc9e0aa3d Size in memory: 504 References: 0 Number of entries: 1 Members: 151.101.129.0/24 The bug mentioned in the wiki https://wiki.archlinux.org/title/Ipset was not hit. Even though ipset failed to load the sets, iptables started normally. After manually re-creating the tables and restoring the iptables rules, iptables is again using the sets: # iptables -nvL --line-numbers Chain INPUT (policy DROP 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 0 0 ACCEPT 0 -- * * 0.0.0.0/0 0.0.0.0/0 match-set whitelistnet src 2 0 0 ACCEPT 0 -- * * 0.0.0.0/0 0.0.0.0/0 match-set whitelist src 3 0 0 DROP 0 -- * * 0.0.0.0/0 0.0.0.0/0 match-set blocklist src 4 0 0 f2b-dovecot 6 -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 110,995,143,993,587,465,4190 <snip> I've followed the wiki and the man-page (and help) command to restore the files manually, but nothing seems to work. Any ideas what is going on? I'm brand new to ipset, so I don't have much experience to draw from. Anybody else seeing this or see a reason ipset isn't being restored on startup by ipset.service? -- David C. Rankin, J.D.,P.E.

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Changing of archive packages to git tags
by Aaron Liu 10 Apr '24

10 Apr '24

Ey, Recently, a bunch of packages such as cowsay have switched to pulling from a git tag away from downloading from the /archive/ path of GitHub. Since downloading GitHub's archives are guaranteed to have the exact same contents as pulling from the tags, with the added benefit of not pulling the .git folder, is there any benefit to this? To my knowledge, the problematic xz tarballs were under the /release/ path as uploaded artifacts, while the /archive/ download remained clean. Aaron

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Graphical session inside systemd-nspawn container
by FirstName LastName 09 Apr '24

09 Apr '24

Hello, I am trying to run X from within a systemd-nspawn container - this is something I had set up and was running successfully about three years ago, but something seems to have changed in the meantime and I am not able to recreate this. I created the container and installed X related packages following the wiki article, and was able to boot into my container and create an unprivileged user. The script I am using to boot is (modified from my container of three years ago): xhost +local: sudo systemd-nspawn -b -D /mnt/extra/nspawn-containers/test \ --bind-ro=/tmp/.X11-unix \ --bind=/dev/dri \ --bind=/dev/shm \ --bind=/dev/nvidia0 \ --bind=/dev/nvidiactl \ --bind=/dev/nvidia-modeset \ --setenv=DISPLAY=:0.0 \ xhost - When I try to `startx` from within the container, however, I get this: /usr/lib/Xorg.wrap: Only console users are allowed to run the X server xinit: giving up xinit: unable to connect to X server: Connection refused xinit: server error Couldn't get a file descriptor referring to the console. I am not entirely sure where to go from here. Is there something incomplete in my configuration? Looking up the Xorg.wrap error message, I only find that X will not run on pseudo terminals, but I do not know what to do about this or if this is even the problem. Best regards, e

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Package java-environment-common-3-5 installs incorrect symlinks
by Wouffy The Dog 09 Apr '24

09 Apr '24

Hello, I was cleaning my machine, trying to find broken symlinks. I scanned my `/bin` directory with `find -L /bin/ -type l -ls`, and it found broken links installed by `java-environment-common` (`pacman -Qqo /bin/javah` for example). Is it the case for some of you?

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Re: Arch Linux Rust packaging licensing problem
by Maarten de Vries 09 Apr '24

09 Apr '24

On 07-04-2024 13:10, Jan Alexander Steffens (heftig) wrote: > Hi Arvid, > > Thanks for bringing this issue to my attention and your detailed email > about it. I'm CCïng our public development mailing list in this > response so our other maintainers get informed, too. > > I agree that Arch needs a solution for this eventually. Unlike Fedora > we do not package Rust libraries so I think we need some help from > Cargo for this. Preferably from upstream, but a third-party tool would > work as well. > > Ideally, I think there we would create a SPDX license expression from > the entire crate tree and then simplify it, e.g. to turn `(MIT) AND > (MPL-2.0 OR MIT) AND (MIT AND BSD-2-Clause) AND (MPL-2.0 OR > BSD-3-Clause)` into `MIT AND BSD-2-Clause AND (MPL-2.0 OR > BSD-3-Clause)`. Or perhaps even simpler if the tool had knowledge > about which licenses are covered by others. > > We could call such a tool in the `package()` function to set the > `license` for the package. > > I'm not sure how feasible this would be. Are crates required to use > SPDX expressions? > > Greetings, > Jan > > Hey, Replying on the general mailing list since the dev list is staff only. The license field of the pacman package is actually only secondary concern. Many libraries have a license that requires shipping the copyright information along with binary distributions (such as MIT and BSD licenses). This is more than just the name or SPDX identifier of the license. Usually, it is included at the top of a license file and it would look like this: > Copyright (c) 2024, Maarten de Vries There are tools to help with this: https://crates.io/crates/cargo-bundle-licenses https://crates.io/crates/cargo-lichking Personally I think having incomplete SPDX identifier in the pacman package is not in itself a license violation as long as the individual license files are shipped with the package. Although it would certainly be nice for tooling if the package information is complete too. Kind regards, Maarten de Vries

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pacman link
by james smith 09 Apr '24

09 Apr '24

the link[1] in the bugs part links to the old bugs it should link to the new one[2] [1]https://archlinux.org/pacman/ [2]https://gitlab.archlinux.org/archlinux/packaging/packages/pacman

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