It appears my system may have hit the issue reverted here (
https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg74621.html
) ( [PATCH] Revert "btrfs: use proper endianness accessors for
super_copy" ); system is an IBM OpenPower 720 (Big Endian) running
Fedora 27; kernel was at 4.15.9; attempting to reboot after updating
system (including kernel to 4.15.10) caused system to not be able to
boot:
=====
Mounting /sysroot...
[ 34.644721] BTRFS warning (device dm-3): suspicious: generation <
chunk_root_generation: 15959351903540740096 < 17261735521269317632
[ 34.644761] BTRFS info (device dm-3): disk space caching is enabled
[ 34.644771] BTRFS info (device dm-3): has skinny extents
[ 34.645925] BTRFS critical (device dm-3): unable to find logical
71472550772736 length 65536
[ 34.645941] BTRFS critical (device dm-3): unable to find logical
71472550772736 length 65536
[ 34.645952] BTRFS error (device dm-3): failed to read chunk root
[ 34.807156] BTRFS error (device dm-3): open_ctree failed
[FAILED] Failed to mount /sysroot.
=====
It appears there is a manual method available to repair the corrupted
superblock: can that be made available?
Thanks,
-Ashu
--
Ashu Tiwary
ashuat...@gmail.com
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