Thanks. Those crash reports are from 1-2 years ago so don't look
relevant.
journal.txt seems to show the problem. The system ran out of memory at
Aug 18 10:08:14 but gnome-shell kept running. It was then told to shut
down cleanly by systemd and you can see the clean shutdown a few seconds
later at Aug 18 10:08:20.
So I think this is a systemd feature. It notices something was killed
due to low memory, other processes then struggle to respond to queries
due to low memory, and then the entire session gets shut down cleanly.
There is no crash here, and no gnome-shell bug that I can see.
It's possible systemd decided to log out due to:
Aug 18 10:08:14 portable01 systemd[1596]: gnome-session-manager@ubuntu.service:
A process of this unit has been killed by the OOM killer.
Aug 18 10:08:14 portable01 /usr/libexec/gdm-x-session[1628]: (II) event4 -
MSFT0004:00 06CB:CD98 Touchpad: SYN_DROPPED event - some input events have been
lost.
Aug 18 10:08:14 portable01 systemd[1]: user@1000.service: A process of this
unit has been killed by the OOM killer.
Aug 18 10:08:15 portable01 gnome-session[1822]: gnome-session-binary[1822]:
WARNING: Client '/org/gnome/SessionManager/Client20' failed to reply before
timeout
Aug 18 10:08:15 portable01 gnome-session[1822]: gnome-session-binary[1822]:
WARNING: Client '/org/gnome/SessionManager/Client30' failed to reply before
timeout
Aug 18 10:08:15 portable01 gnome-session[1822]: gnome-session-binary[1822]:
WARNING: Client '/org/gnome/SessionManager/Client22' failed to reply before
timeout
Aug 18 10:08:15 portable01 gnome-session[1822]: gnome-session-binary[1822]:
WARNING: Client '/org/gnome/SessionManager/Client27' failed to reply before
timeout
Aug 18 10:08:15 portable01 gnome-session-binary[1822]: WARNING: Client
'/org/gnome/SessionManager/Client20' failed to reply before timeout
Aug 18 10:08:15 portable01 gnome-session-binary[1822]: WARNING: Client
'/org/gnome/SessionManager/Client30' failed to reply before timeout
Aug 18 10:08:15 portable01 gnome-session-binary[1822]: WARNING: Client
'/org/gnome/SessionManager/Client22' failed to reply before timeout
Aug 18 10:08:15 portable01 gnome-session-binary[1822]: WARNING: Client
'/org/gnome/SessionManager/Client27' failed to reply before timeout
** Package changed: gnome-shell (Ubuntu) => systemd (Ubuntu)
** Summary changed:
- GUI is killed and returns back to login screen
+ GNOME session is shut down during OOM and returns back to login screen
** Changed in: systemd (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/2077254
Title:
GNOME session is shut down during OOM and returns back to login screen
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