parent transid verify failed + level verify failed

[Martin Steigerwald <martin@lichtvoll.de>]

Hi!

Have a great Sunday and absolutely feel free to reply at a later time :)

After having used linux-6.7-rc1 almost rc2, git commit
791c8ab095f71327899023223940dd52257a4173 in order to test out BCacheFS,
back on 6.6.1 after two attempts of non working hibernation and a strange
experience with GRUB presenting its command prompt instead of a boot menu¹,
I now got this funny stuff:

[ 1849.408572] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1178386432 mirror 1 wanted 538478 found 538901
[ 1849.408943] BTRFS error (device dm-1: state EA): level verify failed on logical 1132724224 mirror 1 wanted 0 found 1
[ 1849.414073] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1178386432 mirror 1 wanted 538478 found 538901
[ 1849.446144] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.448792] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.449515] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.451647] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.454860] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.455527] BTRFS error (device dm-1: state EA): parent transid verify failed on 2a006853-bec0-4026-94aa-8ade2e0c3674logical 1204469760 mirror 1 wanted 538478 found 538904
[ 1849.456286] BTRFS error (device dm-1: state EA): parent transid verify failed on logical 1204469760 mirror 1 wanted 538478 found 538904

Noticed as BTRFS for / went read only.

Kernel 6.6.1 on Devuan Ceres on ThinkPad T14 AMD Gen 1 32 GiB RAM with
2 TB Samsung 980 Pro NVME SSD.

I cannot do a scrub cause despite

WARNING: failed to write the progress status file: Read-only file system. Status recording disabled
scrub started on /, fsid […] (pid=31693)

scrub does not seem to do anything.

Will now boot into GRML and recover from backup, also checking the other
BTRFS filesystems.

While focus will be to get to a full working state as quickly as possible,
I intend to do a full dd copy for forensic analysis.



[1] Described in more detail at the end of:

Re: Questions related to BCacheFS

https://lore.kernel.org/linux-bcachefs/2273246.iZASKD2KPV@lichtvoll.de/T/#m3fc22fb92f1f2d160f2b3a2387dc1f10d067fb97

Best,
-- 
Martin