Linux Kernel 5.16 & BTRFS bug

[dmclloyd]

I came across this video, the guy says there is a bug in the 5.16 kernel that might affect BTRFS autodefrag and you should remove it or set it to noautodefrag to mitigate the bug.

- YouTube

[mrvictory]

Already known and patched. Update your system.

"PSA: Linux 5.16 has major regression in btrfs causing extreme IO load"

Thanks for posting this! I have been watching the terminal output of sudo iotop -a on and off for a past couple of weeks. I did notice an unusually high write rate associated with another btrfs process as well, namely btrfs-transaction (?). I wanted to post about it on the forum and ask about it but I didn’t get around doing it. Below is an screenshot of the terminal output of sudo iotop -a after 5 minutes uptime with nothing else but the system running: [iotop-5min.] here is another one …