Forgot to go through the checklist ...
$ lsb_release -rd
Description: Ubuntu 21.10
Release: 21.10
$ apt-cache policy systemd
systemd:
Installed: 248.3-1ubuntu8
Candidate: 248.3-1ubuntu8
Version table:
*** 248.3-1ubuntu8 500
500 http://mirror.uchile.cl/ubuntu impish/main amd64 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/bugs/1952542
Title:
systemd randomly crashes
Status in systemd package in Ubuntu:
New
Bug description:
When screensaver is on, I often can't wake the system back up again.
Screen comes, up, clock shows but frozen and login does nothing.
I have a file `/var/crash/_usr_lib_systemd_systemd.0.crash` from
around the incident time, so I guess it's systemd itself that's
crashing.
Trying to dig into the crash report, this is how far I get:
```
$ gdb `cat ExecutablePath` CoreDump
GNU gdb (Ubuntu 11.1-0ubuntu2) 11.1
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/lib/systemd/systemd...
(No debugging symbols found in /usr/lib/systemd/systemd)
[New LWP 2241488]
[New LWP 1]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/sbin/init recovery dis_ucode_ldr'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007effcc99175b in kill () at ../sysdeps/unix/syscall-template.S:120
120 ../sysdeps/unix/syscall-template.S: No such file or directory.
[Current thread is 1 (LWP 2241488)]
(gdb) bt
#0 0x00007effcc99175b in kill () at ../sysdeps/unix/syscall-template.S:120
#1 0x0000561ece72cb5c in ?? ()
#2 <signal handler called>
#3 __pthread_kill_implementation (no_tid=0, signo=6,
threadid=139637107291648) at pthread_kill.c:44
#4 __pthread_kill_internal (signo=6, threadid=139637107291648) at
pthread_kill.c:80
#5 __GI___pthread_kill (threadid=139637107291648, signo=signo@entry=6) at
pthread_kill.c:91
#6 0x00007effcc991476 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#7 0x00007effcc9777b7 in __GI_abort () at abort.c:79
#8 0x00007effccced6fe in ?? () from /lib/systemd/libsystemd-shared-248.so
#9 0x0000561ece7758c4 in ?? ()
#10 0x0000561ece77a7aa in ?? ()
#11 0x0000561ece72b8a7 in ?? ()
#12 0x00007effcc978fd0 in __libc_start_call_main
(main=main@entry=0x561ece729330, argc=argc@entry=3,
argv=argv@entry=0x7ffc9cbad768) at ../sysdeps/nptl/libc_start_call_main.h:58
#13 0x00007effcc97907d in __libc_start_main_impl (main=0x561ece729330,
argc=3, argv=0x7ffc9cbad768, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffc9cbad758)
at ../csu/libc-start.c:409
#14 0x0000561ece72c6f5 in ?? ()
(gdb)
#0 0x00007effcc99175b in kill () at ../sysdeps/unix/syscall-template.S:120
#1 0x0000561ece72cb5c in ?? ()
#2 <signal handler called>
#3 __pthread_kill_implementation (no_tid=0, signo=6,
threadid=139637107291648) at pthread_kill.c:44
#4 __pthread_kill_internal (signo=6, threadid=139637107291648) at
pthread_kill.c:80
#5 __GI___pthread_kill (threadid=139637107291648, signo=signo@entry=6) at
pthread_kill.c:91
#6 0x00007effcc991476 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#7 0x00007effcc9777b7 in __GI_abort () at abort.c:79
#8 0x00007effccced6fe in ?? () from /lib/systemd/libsystemd-shared-248.so
#9 0x0000561ece7758c4 in ?? ()
#10 0x0000561ece77a7aa in ?? ()
#11 0x0000561ece72b8a7 in ?? ()
#12 0x00007effcc978fd0 in __libc_start_call_main
(main=main@entry=0x561ece729330, argc=argc@entry=3,
argv=argv@entry=0x7ffc9cbad768) at ../sysdeps/nptl/libc_start_call_main.h:58
#13 0x00007effcc97907d in __libc_start_main_impl (main=0x561ece729330,
argc=3, argv=0x7ffc9cbad768, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffc9cbad758)
at ../csu/libc-start.c:409
#14 0x0000561ece72c6f5 in ?? ()
quit)
```
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