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Apps crash randomly on newly installed ubuntu 22.04

rated 0 times [ 20] [ 0] / answers: 1 / hits: 15010 / 3 Years ago, sat, november 13, 2021, 2:58:50

I've just installed Ubuntu 22.04 on my laptop with 8GB ram (no dual boot, ext4 + 20GB linux swap);

Installed 2 gnome shell extensions (Dash to panel, Workspace Matrix);

My working environment is just vs code, webpack dev server, and chrome;

During the active development something dies ~ every 10 minutes. Could not find any error logs, it looks like app is closed (in case of webpack dev server the terminal window is closed). If it's chrome - no chrome processes left.

For now, it did not happen with the active app - only background ones die. It's like you save a code, switch to the browser - and there's no browser, or you inspect something in devtools, switch to vs code - and there's no vs code.

What should be the first step investigating this? Where to look for any logs/crash reports?

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hamostic

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answered 3 Years ago ettorina · Accepted Answer

I had the same problem, and it turned out that systemd-oomd (a userspace out-of-memory (OOM) killer) was killing my applications whenever I was running low on swap space.

As suggested by @guiverc, you can run the following command to see if it is the case for you as well:

journalctl -u systemd-oomd

Example output:

mai 09 07:03:25 caterpillar systemd[1]: Starting Userspace Out-Of-Memory (OOM) Killer...

mai 09 07:03:26 caterpillar systemd[1]: Started Userspace Out-Of-Memory (OOM) Killer.

mai 09 14:05:24 caterpillar systemd-oomd[573]: Killed /user.slice/user-1000.slice/[email protected]/app.slice/snap.firefox.firefox.d00df170-f05e-4de1-a1c8-4c1d53664dc1.scope due to memory used (7277371392) / to>

mai 10 10:32:34 caterpillar systemd-oomd[573]: Killed /user.slice/user-1000.slice/[email protected]/app.slice/snap.firefox.firefox.4fad3166-da1d-4084-8a67-8a2ddfe4ab68.scope due to memory used (7352815616) / to>

Two options:

Disable systemd-oomd:
```
systemctl disable --now systemd-oomd
```
For more information: How do I disable the systemd OOM process killer in Ubuntu 22.04?

Increase swap size (recommended).