http://bugzilla.opensuse.org/show_bug.cgi?id=1047152 http://bugzilla.opensuse.org/show_bug.cgi?id=1047152#c21 --- Comment #21 from Aleksa Sarai <asarai@suse.com> --- (In reply to rob loranger from comment #20)
This appears to be fixed in tumbleweed as of 4.12.9-1
The patch is still not present in 4.12.9. The reason why you cannot reproduce the issue again is because of the nature of the bug. Effectively the issue is that if there is a btrfs qgroup rescan running and the machine hard resets, the flag indicating that "there is a rescan running" remains present on disk. The flag is not cleared correctly (due to how systemd mounts the root filesystem), resulting in a bunch of operations stalling indefinitely. My patch corrects the codepath that systemd hits when mounting the root filesystem, causing the flag to be cleared correctly. As a result, rebooting into a kernel without my patch will still work (until you have the flag set and you hard reset the machine again). I spoke to one of the maintainers of the btrfs tree and it looks like it'll land in 4.14, marked for stable -- so it will trickle into stable kernels as soon as it's merged into mainline in 4.14-rc1 (in a few weeks). -- You are receiving this mail because: You are on the CC list for the bug.