[Bug 1231836] [MicroOS]: emergency mode after attempting to mount /.snapshots

https://bugzilla.suse.com/show_bug.cgi?id=1231836 https://bugzilla.suse.com/show_bug.cgi?id=1231836#c5 --- Comment #5 from Wenruo Qu <wqu@suse.com> --- The direct cause is, when the initial super RO flag mismatches, we got EBUSY and go btrfs_reconfigure_for_mount(), which flips our RO flag and retry. But since the background process is also re-mounting which can flips the RO flag to a different one, we got -EBUSY again because the newly flipped RO flag conflicts with the newly remounted flag. This involves a lot of VFS calls which can be a little complex, but I'll try if we can do a mutex or something like that to avoid remount/mount to race on the same btrfs. -- You are receiving this mail because: You are on the CC list for the bug.