Re: [GIT PULL] Btrfs fixes for 6.8-rc2

[Linus Torvalds]

On Mon, 22 Jan 2024 at 10:34, David Sterba <dsterba@xxxxxxxx> wrote:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git tags/for-6.8-rc1-tag

I have no idea if this is related to the new fixes, but I have never
seen it before:

  BTRFS critical (device dm-0): corrupted node, root=256
block=8550954455682405139 owner mismatch, have 11858205567642294356
expect [256, 18446744073709551360]
  BTRFS critical (device dm-0): corrupted node, root=256
block=8550954455682405139 owner mismatch, have 11858205567642294356
expect [256, 18446744073709551360]
  BTRFS critical (device dm-0): corrupted node, root=256
block=8550954455682405139 owner mismatch, have 11858205567642294356
expect [256, 18446744073709551360]
  SELinux: inode_doinit_use_xattr:  getxattr returned 117 for dev=dm-0
ino=5737268
  SELinux: inode_doinit_use_xattr:  getxattr returned 117 for dev=dm-0
ino=5737267

and it caused an actual warning to be printed for my kernel tree from 'git':

   error: failed to stat 'sound/pci/ice1712/se.c': Structure needs cleaning

(and yes, 117 is EUCLEAN, aka "Structure needs cleaning")

The problem seems to have self-corrected, because it didn't happen
when repeating the command, and that file that failed to stat looks
perfectly fine.

But it is clearly worrisome.

The "owner mismatch" check isn't new - it was added back in 5.19 in
commit 88c602ab4460 ("btrfs: tree-checker: check extent buffer owner
against owner rootid"). So something else must have changed to trigger
it.

           Linus