On Wed, Jan 27, 2021 at 6:05 AM Alexey Isaev [off-list ref] wrote:

I managed to run btrs check, but it didn't solve the problem:

aleksey@host:~$ sudo btrfs check --repair /dev/sdg

OK it's risky to run --repair without a developer giving a go ahead,
in particular with older versions of btrfs-progs. There are warnings
in the man page about it.

[sudo] password for aleksey:
enabling repair mode
Checking filesystem on /dev/sdg
UUID: 070ce9af-6511-4b89-a501-0823514320c1
checking extents
parent transid verify failed on 52180048330752 wanted 132477 found 132432
parent transid verify failed on 52180048330752 wanted 132477 found 132432
parent transid verify failed on 52180048330752 wanted 132477 found 132432
parent transid verify failed on 52180048330752 wanted 132477 found 132432
Ignoring transid failure
leaf parent key incorrect 52180048330752
bad block 52180048330752
Errors found in extent allocation tree or chunk allocation
parent transid verify failed on 52180048330752 wanted 132477 found 132432

Yeah it's not finding what it's expecting to find there.

Any power fail or crash in the history of the file system?

What do you get for:

btrfs insp dump-s -f /dev/sdg


-- 
Chris Murphy