xfs_do_force_shutdown

[Kuo Hugo]

Hi Folks,

I got a question regarding to xfs_do_force_shutdown. The smartctl doesn't
show any clue about disk bad. The device works properly again after
remount. The xfs_repair complete to repair the device very quick and
these's not too much suspecious.


* Is this a xfs level issue about dirty logs ?
* Is this HBA problem ?


```
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.330404] blk_update_request:
I/O error, dev sdy, sector 3909224960
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.330650] XFS (sdy): metadata
I/O error: block 0xe9020a00 ("xlog_iodone") error 5 numblks 64
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.330939] XFS (sdy):
xfs_do_force_shutdown(0x2) called from line 1179 of file
/build/linux-lts-vivid-whAhIw/linux-lts-vivid-3.19.0/fs/xfs/xfs_log.c.
Return address = 0xffffffffc06a1d96
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.330973] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.330999] XFS (sdy): Log I/O
Error Detected.  Shutting down filesystem
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.331206] XFS (sdy): Please
umount the filesystem and rectify the problem(s)
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.331443] Buffer I/O error on
dev sdy, logical block 18, lost async page write
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.337098] Buffer I/O error on
dev sdy, logical block 30523594, lost async page write
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.348492] Buffer I/O error on
dev sdy, logical block 19, lost async page write
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.359941] Buffer I/O error on
dev sdy, logical block 30523599, lost async page write
Jul 17 22:52:31 HBGTCOBSON02 kernel: [9291040.380649] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:52:59 HBGTCOBSON02 kernel: [9291069.111432] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:53:29 HBGTCOBSON02 kernel: [9291099.215252] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:53:33 HBGTCOBSON02 kernel: [9291102.517951] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:53:33 HBGTCOBSON02 kernel: [9291102.517981] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 17 22:53:33 HBGTCOBSON02 kernel: [9291102.518006] XFS (sdy):
xfs_log_force: error -5 returned.
Jul 18 08:35:55 HBGTCOBSON02 kernel: [9326072.158898] XFS (sdy): Mounting
V4 Filesystem
Jul 18 08:35:55 HBGTCOBSON02 kernel: [9326072.279516] XFS (sdy): Starting
recovery (logdev: internal)
Jul 18 08:35:55 HBGTCOBSON02 kernel: [9326072.725549] XFS (sdy): Ending
recovery (logdev: internal)
```

thanks // Hugo
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