[PowerPC] XFS : Metadata corruption detected at 0x60000000382100b0, xfs_agf block

[Abdul Haleem]

Hi,

Reboot fails for PowerPC machine running RHEL7.3 (3.10.0-514.el7)
following these messages:

SGI XFS with ACLs, security attributes, no debug enabled
XFS (dm-0): Mounting V5 Filesystem
FS (dm-0): Starting recovery (logdev: internal)
XFS (dm-0): Metadata corruption detected at 0x60000000382100b0, xfs_agf
block 0x4b00001
XFS (dm-0): Unmount and run xfs_repair
XFS (dm-0): First 64 bytes of corrupted metadata buffer:
c0000000f06b7200: 58 41 47 46 00 00 00 01 00 00 00 03 00 32 00 00
XAGF.........2..
c0000000f06b7210: 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00
01  ................
c0000000f06b7220: 00 00 00 01 00 00 00 00 00 00 00 76 00 00 00
02  ...........v....
c0000000f06b7230: 00 00 00 04 00 2d 0c c7 00 2a 14 62 00 00 00
00  .....-...*.b....
XFS (dm-0): metadata I/O error: block 0x4b00001
("xfs_trans_read_buf_map") error 117 numblks 1
Failed to mount /sysroot.

Steps to recreate:
Run some file system test (ltp or xfs/086) on 4.10.0 upstream kernel
built on the PowerVM LPAR after the test completes, reboot the machine
back to base kernel, boot falls to dracut mode with above messages,
every time it requires a xfs_repair to recover the file system.


-- 
Regard's

Abdul Haleem
IBM Linux Technology Centre