1ec5d43a0e
This test occasionally fails due to a race where systemd processes kernel's SIGKILL before the OOM notification, so the test service dies with Result=signal instead of the expected Result=oom-kill: [ 51.008765] TEST-55-OOMD.sh[906]: + systemd-run --wait --unit oom-kill -p OOMPolicy=kill -p Delegate=yes -p DelegateSubgroup=init.scope /tmp/script.sh [ 51.048747] TEST-55-OOMD.sh[907]: Running as unit: oom-kill.service; invocation ID: 456645347d554ea2878463404b181bd8 [ 51.066296] sysrq: Manual OOM execution [ 51.066596] kworker/1:0 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=-1, oom_score_adj=0 [ 51.066915] CPU: 1 UID: 0 PID: 27 Comm: kworker/1:0 Not tainted 6.17.1-arch1-1 #1 PREEMPT(full) d2b229857b2eb4001337041f41d3c4f131433540 [ 51.066919] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.17.0-2-2 04/01/2014 [ 51.066921] Workqueue: events moom_callback [ 51.066928] Call Trace: [ 51.066931] <TASK> [ 51.066936] dump_stack_lvl+0x5d/0x80 [ 51.066942] dump_header+0x43/0x1aa <...snip...> [ 51.087814] 47583 pages reserved [ 51.087969] 0 pages cma reserved [ 51.088208] 0 pages hwpoisoned [ 51.088519] Out of memory: Killed process 908 (sleep) total-vm:3264kB, anon-rss:256kB, file-rss:1916kB, shmem-rss:0kB, UID:0 pgtables:44kB oom_score_adj:1000 [ 51.090263] TEST-55-OOMD.sh[907]: Finished with result: signal [ 51.094416] TEST-55-OOMD.sh[907]: Main processes terminated with: code=killed, status=9/KILL [ 51.094898] TEST-55-OOMD.sh[907]: Service runtime: 58ms [ 51.095436] TEST-55-OOMD.sh[907]: CPU time consumed: 22ms [ 51.095854] TEST-55-OOMD.sh[907]: Memory peak: 1.6M (swap: 0B) [ 51.096722] TEST-55-OOMD.sh[912]: ++ systemctl show oom-kill -P Result [ 51.106549] TEST-55-OOMD.sh[879]: + assert_eq signal oom-kill [ 51.107394] TEST-55-OOMD.sh[913]: + set +ex [ 51.108256] TEST-55-OOMD.sh[913]: FAIL: expected: 'oom-kill' actual: 'signal' [FAILED] Failed to start TEST-55-OOMD.service. To mitigate this, let's spawn a child process and move it to the subcgroup to get killed instead of the main process, so systemd has more time to react to the OOM notification and terminate the service with the expected oom-kill result.
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
We have a security bug bounty program sponsored by the Sovereign Tech Fund hosted on YesWeHack
Repositories with distribution packages built from git main are available on OBS