Your message dated Mon, 27 May 2024 23:50:02 +0000
with message-id <e1sbk6m-00826k...@fasolo.debian.org>
and subject line Bug#1056564: fixed in systemd 256~rc3-3
has caused the Debian Bug report #1056564,
regarding udev: run-init stops while nuking initramfs contents
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1056564: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056564
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Subject: udev: run-init stops while nuking initramfs contents
Package: udev
X-Debbugs-Cc: mailto:o...@keba.com
Version: 252.17-1~deb12u1
Severity: normal
Dear Maintainer,
* What led up to the situation?
One out of many hundreds bootups does not finish. Buster was OK, bookworm shows
the problem.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Just bootup many, many times.
* What was the outcome of this action?
Bootup stopped in run-init.
"run-init: nuking initramfs contents: No such file or directory"
Then a panic is seen: "Attempted to kill init! exitcode=0x00000100"
* What outcome did you expect instead?
Normal bootup
>From adding debug-prints to run-init I saw that the "missing file" was
>"//run/udev/links/disk\x2fby-id\x2fata-SFCF2048H1BO2TO-C-M0-543-SMA_000060114999A1000216-part1/.lock"
This file gets deleted when the last udev-worker gets killed.
Unfortunately "udevadm control --exit" - called from init-bottom - does not
wait for that to happen. So there is a race condition while deleting the files.
A quick test outside initramfs also shows, that some .lock-files are still
present after the "--exit" call.
root@production:~# udevadm trigger && udevadm settle && udevadm control --exit
&& find /run/udev/links -name .lock
/run/udev/links/input\x2fby-path\x2fpci-0000:03:00.0-platform-keba-rs485-uart.0-serio-0-event/.lock
/run/udev/links/input\x2fby-path\x2fpci-0000:03:00.0-platform-keba-rs485-uart.0-serio-0-event-joystick/.lock
... <snip> ...
/run/udev/links/disk\x2fby-id\x2fmmc-0004G_0x7a493cb8/.lock
/run/udev/links/rtc/.lock
root@production:~#root@production:~#
When adding a small delay before the "find", the .lock files are gone:
root@production:~# udevadm trigger && udevadm settle && udevadm control --exit
&& sleep 0.1 && find /run/udev/links -name .lock
root@production:~#
Scanning through the systemd/udev-history I found this commit:
commit 1055172804e660df2e1c498dafa998ffd65e0c88
Author: Yu Watanabe mailto:watanabe.yu+git...@gmail.com
Date: Mon Apr 11 21:52:49 2022 +0900
udev: cleanup stack directory /run/udev/links when all workers exited
By the previous commit, the stack directories are not removed even if
it is empty. To reduce the inode usage of /run, let's cleanup the
directories.
>From the wording it could fit, but I did not dig deeper...
As a workaround we now wait in init-bottom for all udev-threads to disappear
before exiting to run-init. Seems to work.
Thanks,
Thomas
-- Package-specific info:
-- System Information:
Debian Release: 12.2
Architecture: amd64 (x86_64)
Kernel: Linux 5.15.0-none-keba-rt-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages udev depends on:
ii adduser 3.134
ii libacl1 2.3.1-3
ii libblkid1 2.38.1-5+b1
ii libc6 2.36-9+deb12u3
ii libcap2 1:2.66-4
ii libkmod2 30+20221128-1
ii libselinux1 3.4-1+b6
ii libudev1 252.17-1~deb12u1
udev recommends no packages.
udev suggests no packages.
Versions of packages udev is related to:
ii systemd 252.17-1~deb12u1
-- no debconf information
--- End Message ---
--- Begin Message ---
Source: systemd
Source-Version: 256~rc3-3
Done: Luca Boccassi <bl...@debian.org>
We believe that the bug you reported is fixed in the latest version of
systemd, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 1056...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Luca Boccassi <bl...@debian.org> (supplier of updated systemd package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Tue, 28 May 2024 00:07:57 +0100
Source: systemd
Architecture: source
Version: 256~rc3-3
Distribution: unstable
Urgency: medium
Maintainer: Debian systemd Maintainers
<pkg-systemd-maintain...@lists.alioth.debian.org>
Changed-By: Luca Boccassi <bl...@debian.org>
Closes: 825438 851314 913061 966621 1029152 1056166 1056564
Changes:
systemd (256~rc3-3) unstable; urgency=medium
.
[ Zbigniew Jędrzejewski-Szmek ]
* tests/boot-and-services: don't wait for systemd-tmpfiles-clean.service
to finish. It's a oneshot service, so the 'start' call above is
effectively synchronous.
* test/boot-and-services: use pidof instead of ps -C
.
[ Chris Hofstaedtler ]
* autopkgtest: install open-iscsi and tgt for upstream suite
.
[ Gioele Barabucci ]
* d/libnss-mymachines.nss: Install before `resolve` and `dns`. Installing
`mymachines` before `dns` and `resolve` (whatever comes first) is
suggested in the manpage. It also avoids leaking information about
local machines to the DNS resolver. (Closes: #825438, #851314)
* d/libnss-myhostname.nss: Install after `files`
.
[ Luca Boccassi ]
* Drop /bin/systemd legacy symlink. The systemd binary should not be in
the default PATH. This symlink was created due to some old
documentation (long since corrected) suggesting to use
init=/bin/systemd to test switching to systemd. (Closes: #913061)
* initramfs: call udevadm settle before control --exit to ensure workers
have stopped. Otherwise there might be lock files left under /run/
which will break 'nuke' and cause the boot to fail. (Closes: #1056564)
* Restore open files limit bump on boot. Broken packages ought to have
been fixed by now. (Closes: #1029152)
* Set default core limit to 0 via PAM for users. Otherwise it only
applies to services.
* Cleanup /var/tmp/ and /tmp/ on a timer by default. Remove the
downstream patch and restore the upstream behaviour set by the
tmpfiles.d which is to cleanup /var/tmp/ once a month and /tmp/ once
every 10 days. Can be overridden via: touch /etc/tmpfiles.d/tmp.conf
(Closes: #966621)
* Make /tmp/ a tmpfs by default. Restore the upstream default and make
/tmp/ a tmpfs. Can be overridden with: touch
/etc/systemd/system/tmp.mount or: systemctl mask tmp.mount
* Drop out-of-tree /run/lock patch and use a mount unit and tmpfiles.d
instead. Only lvm2 and open-iscsi have mentions of /run/lock and an
early-boot unit, so it's trivial to add ordering in those units
instead of maintaining an out-of-tree patch.
* homed: use standalone pam config file instead of pam-auth-config
pam_unix.so assumes that if anything comes before it then the password
has already been queried for sure. This doesn't work for homed, so
passwd breaks. pam-auth-config has this hard-coded assumption and it
cannot be disabled. Use an upstream standard pam config file instead.
(Closes: #1056166)
* NEWS: note recent changes
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