http://bugzilla.opensuse.org/show_bug.cgi?id=1172366 Bug ID: 1172366 Summary: btrfs balance in endless loop and couldn't be canceled Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.1 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: ralf.koelmel@kit.edu QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I have had a endless running btrfs balance with the kernel 4.12.14-lp151.28.48-default. The balance was triggered from the btrfsmaintenance balance timer. I have no kernel stack trace, only the same following trace during 15h: "kernel: [.......] BTRFS info (device dm-0): found 2087 extents" The btrfs filesystem was in the following situation: " Total devices 1 FS bytes used 30.81GiB devid 1 size 45.00GiB used 45.00GiB path /dev/mapper/system-root2 " I've tried to free some space through deletion of old snaphots during this situation, but the btrfs balance was running without change. Also canceling of the btrfs balance had no effect. After these tries i have rebooted the system with skip_balance option in the fstab. Manually started btrfs balance in several steps (with argument -musage beginning from 10 to 80, then with argument -dusage from 10 to 80) were running without problem, but the used size (second line) was a little smaller than 45.00 GiB at the start of the balance runs. A scrub of this filesystem shows no errors. There are some other bug reports describing the same or a similar problem (e.g. https://bugzilla.opensuse.org/show_bug.cgi?id=1160947), but for me it is not clear, if this kernel, which has quite a lot btrfs related changes, should have a bugfix for this problem. -- You are receiving this mail because: You are on the CC list for the bug.