Comment 19 for bug 1846374

Here to confirm issue (only seen with VLC) as well. Writes to ~/.xsession-errors until disk is full, which on this NVMe SSD takes seconds.

Occurs without user switching. Not seeing it in syslog as some people are reporting - for those users, did you disable xsession-errors somewhere?

Had to work around disk space issue by adding link to /dev/null on each log in, similar to https://forums.linuxmint.com/viewtopic.php?p=1559886&sid=61ae05bb0f18ec819664dde96f6fd7e6#p1559886

When this occurs, VLC process still takes 100% CPU and must be restarted, but at least disk isn't full.