On Tue, 14 Aug 2018 16:41:11 +0300 Dmitrii Tcvetkov <demfl...@demfloro.ru> wrote:
> If usebackuproot doesn't help then filesystem is beyond repair and you > should try to refresh your backups with "btrfs restore" and restore from > them[1]. > > [1] > https://btrfs.wiki.kernel.org/index.php/FAQ#How_do_I_recover_from_a_.22parent_transid_verify_failed.22_error.3F This is really the worst unfixed Btrfs issue today. This happens a lot on unclean shutdowns or reboots, and the only advice is usually to "start over" -- even if your FS is 40 TB and the discrepancy is just by half a dozen transids. There needs to be a way in fsck to accept (likely minor!) FS damage and forcefully fixup transids to what they should be -- or even nuke the affected portions entirely. -- With respect, Roman
