Bruno Damasceno Freire wrote:
For systems using btrfs it may be related to this:
https://bugzilla.kernel.org/show_bug.cgi?id=212185
One of the notebooks I work on had this issue a while ago and I solved it by:
1) adjusting snapper config to be easier on my small (19Gb) root partition 2) running btrfs balance
# snapper set-config SPACE_LIMIT=0.6 # snapper set-config NUMBER_LIMIT_IMPORTANT=4-8 # snapper set-config NUMBER_LIMIT=2-8 # btrfs balance start -dusage=80 /
Yes, I had the suspicion it might be related to some btrfs balance or similar, but would have expected some hint in the syslog that balancing is actually started - which is not the case. Anyhow, good to see it's not only me seeing this. So I'm not paranoid ;^> Jiri Slaby had asked me to check /proc/PID/stack of that process. Unfortunately, I haven't seen it again since yesterday - which could be a hint to some maintenence thing going on...