The morning copy ran without incident but the evening copy triggered a fault between 1944 and 1952 CST (UTC-5). I'm attaching a TAR which contains three screenshots (before, during, and just after the fault) as well as the time-relevant output of 'journalctl', and an sosreport. The sosreport contains 'sar' data which can be nicely graphed by 'ksar' (https://github.com/vlsi/ksar) if you, like me, would rather see a graph of the values instead of reading them line-by-line.
The relevant systemd-oomd text today was this: =-=-=-=-=- Nov 13 19:44:41 Boromir systemd-oomd[1084]: Killed /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.gnome.Terminal.slice/vte-spawn-d21ca39b-f66d-4b6c-aa6b-e087b2171268.scope due to memory pressure for /user.slice/user-1000.slice/user@1000.service being 59.43% > 50.00% for > 20s with reclaim activity Nov 13 19:44:41 Boromir systemd[2457]: vte-spawn-d21ca39b-f66d-4b6c-aa6b-e087b2171268.scope: systemd-oomd killed 2 process(es) in this unit. Nov 13 19:44:57 Boromir systemd-oomd[1084]: Killed /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.gnome.Terminal.slice/vte-spawn-552a2d8e-2b19-483b-824a-dd4a5138012b.scope due to memory pressure for /user.slice/user-1000.slice/user@1000.service being 60.58% > 50.00% for > 20s with reclaim activity Nov 13 19:51:55 Boromir systemd-oomd[1084]: Killed /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.gnome.Terminal.slice/vte-spawn-48215c41-bdeb-4430-a3f1-eae7f6af30d3.scope due to memory pressure for /user.slice/user-1000.slice/user@1000.service being 67.81% > 50.00% for > 20s with reclaim activity =-=-=-=-=- The immediately obvious symptom before oomd kicked in was the load average climbing and the system responsiveness falling. I tried taking two other screenshots during that time (load avg 30-40) but the clipboard didn't update or Gimp hung. ** Attachment added: "OOM_Fault_20221113_1952.tar" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1985887/+attachment/5630682/+files/OOM_Fault_20221113_1952.tar -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1985887 Title: systemd kills gnome-shell or gnome-terminal if gnome-terminal uses much memory (50% over 20s) Status in OEM Priority Project: Invalid Status in systemd package in Ubuntu: Incomplete Bug description: [Steps to reproduce] 0. Install Jammy image 1. open gnome terminal 2. issue stress_ng or Canonical certification tool checkbox as "checkbox-cli run com.canonical.certification::memory/memory_stress_ng" or "stress-ng --stack 0 --timeout 300" 3. Terminal or Gnome-shell will be killed by systemd-oomd It's because all stressors are under same cgroup belongs to terminal. Both Wayland and Xorg can reproduce. over ssh and in multi-user.target work good. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1985887/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
