"Internal error xfs_attr3_leaf_write_verify at line 216", "directory flags set on non-directory inode" and other errors

[Dave Chinner]

On Wed, Jun 24, 2015 at 09:39:45AM +0200, Rasmus Borup Hansen wrote:
> Hi! Yesterday I got the following error messages from the kernel (Ubuntu trusty, 3.13.0-55):
> 
> [601201.817664] ffff88016e03e000: 00 00 00 00 00 00 00 00 fb ee 00 00 00 00 00 00  ................
> [601201.818224] ffff88016e03e010: 10 00 00 00 00 20 0f e0 00 00 00 00 00 00 00 00  ..... ..........
> [601201.818827] ffff88016e03e020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
> [601201.819429] ffff88016e03e030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
> [601201.820013] XFS (dm-0): Internal error xfs_attr3_leaf_write_verify at line 216 of file /build/buildd/linux-3.13.0/fs/xfs/xfs_attr_leaf.c.  Caller 0xffffffffa00996f0

Probably fixed by commit c88547a ("xfs: fix directory hash ordering
bug"), which also affected attributes in leaf format.

> I'm currently running xfs_repair -n and so far I've seen the following output:
> 
> Phase 1 - find and verify superblock...
> Phase 2 - using internal log
>         - scan filesystem freespace and inode maps...
>         - found root inode chunk
> Phase 3 - for each AG...
>         - scan (but don't clear) agi unlinked lists...
>         - process known inodes and perform inode discovery...
>         - agno = 0
> doubling cache size to 591200
> directory flags set on non-directory inode 206624
> directory flags set on non-directory inode 206625
> directory flags set on non-directory inode 206626
> directory flags set on non-directory inode 206627
> directory flags set on non-directory inode 206628
> directory flags set on non-directory inode 206629
> directory flags set on non-directory inode 206630
> directory flags set on non-directory inode 206631
> directory flags set on non-directory inode 206632
> directory flags set on non-directory inode 206633
> directory flags set on non-directory inode 206634
> 
> Only the first 20 lines are included. There are currently 250000+
> more lines with "directory flags set on non-directory inode" and
> the check is still running (the mostly small files take up around
> 30 TB, so it'll probably take a while).

Harmless, but repair will fix it anyway.

Kernel is fixed by commit 9336e3a ("xfs: project id inheritance is a
directory only flag").

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com