Comment # 7 on bug 1051686 from Coly Li

(In reply to Stefan Priebe from comment #0)
> Hello,
> 
> after an upgrade from 42.2 based kernel to 42.3 current git master i'm
> getting XFS in memory data corruptions on more than 10 different servers
> under high load.
> 
> complete dmesg output is:
> XFS (bcache1): metadata I/O error: block 0x575b6d70
> ("xfs_trans_read_buf_map") error 4 numblks 16
> XFS (bcache1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -4.
> XFS (bcache1): xfs_do_force_shutdown(0x8) called from line 3519 of file
> fs/xfs/xfs_inode.c. Return address = 0xffffffff993441ff
> XFS (bcache1): Corruption of in-memory data detected. Shutting down
> filesystem
> XFS (bcache1): Please umount the filesystem and rectify the problem(s)
> XFS (bcache1): xfs_log_force: error -5 returned.
> XFS (bcache1): xfs_log_force: error -5 returned.
> XFS (bcache1): xfs_log_force: error -5 returned.


Hi Stefan,

Thanks for the report. I'd like to add more debug information in kernel source,
and try to see what happens in xfs or bcache. Is it possible for you to run
such more-debug-info kernel on your machines ?

Coly