Ah, sorry—I just noticed & tried the version in focal-updates
(3.36.3-1ubuntu1~20.04.2), and the issue is no longer reproducible. It
must have been specific to 3.36.2-1ubuntu1~20.04.1.
** Changed in: gnome-shell (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1888517
Title:
gnome-shell segfaults on idle
Status in gnome-shell package in Ubuntu:
Fix Released
Bug description:
Whenever my session becomes idle, gnome-shell segfaults and dies; I am
returned to the login screen.
I can reproduce this by:
- Setting "org.gnome.desktop.session idle-delay" to a small value, like 30.
- Waiting 30 seconds.
Two files are attached, extracted from "journalctl -b -0":
- journalctl.txt with an external monitor attached, and
- journalctl-2.txt, with only the built-in display of the laptop computer.
Both show a line near the top indicating the segfault, but these
differ, e.g.:
Jul 22 16:09:29 khaeru-laptop kernel: show_signal: 63 callbacks suppressed
Jul 22 16:09:29 khaeru-laptop kernel: traps: gnome-shell[2272] general
protection fault ip:7fed3504129a sp:7fff9fbf98e8 error:0 in
libc-2.31.so[7fed34edf000+178000]
or
Jul 22 16:31:27 khaeru-laptop kernel: gnome-shell[43253]: segfault at 0 ip
00007f13545d7252 sp 00007ffe6cc45bf0 error 4 in libst-1.0.so[7f13545b7000+4c000]
Jul 22 16:31:27 khaeru-laptop kernel: Code: 48 83 c3 01 41 39 9f 30 01 00 00
0f 8e 27 01 00 00 49 8b 87 28 01 00 00 48 8d 35 ee 07 03 00 48 8b 2c d8 48 8b
45 00 48 8b 00 <4c> 8b 20 4c 89 e7 e8 63 31 fe ff 85 c0 74 c7 41 80 7c 24 0a 00
0f
Despite the different symptoms, this occurs 100% of the time.
$ lsb_release -rd && apt-cache policy gnome-shell
Description: Ubuntu 20.04 LTS
Release: 20.04
gnome-shell:
Installed: 3.36.2-1ubuntu1~20.04.1
Candidate: 3.36.3-1ubuntu1~20.04.2
Version table:
3.36.3-1ubuntu1~20.04.2 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
*** 3.36.2-1ubuntu1~20.04.1 100
100 /var/lib/dpkg/status
3.36.1-5ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
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