On Thu, Sep 08, 2011 at 04:35:28PM +0530, Amit Sahrawat wrote:
> Kernel Version: 2.6.39.4
> Target: ARM
>
> Observed while doing:
> Copy some file (any size, I tried with 10MB, 100MB) to XFS partition
> After Copy do???sync???
> Now immediately, unplug the device.
Does this still happen with the patch below applied?
commit 9e978d8f7db1c5de7cdc6450a8ca208db3b95f84
Author: Ajeet Yadav <ajeet.yadav.77@xxxxxxxxx>
Date: Fri Jul 29 07:42:59 2011 +0000
"xfs: fix error handling for synchronous writes" revisited
xfs: fix for hang during synchronous buffer write error
If removed storage while synchronous buffer write underway,
"xfslogd" hangs.
Detailed log http://oss.sgi.com/archives/xfs/2011-07/msg00740.html
Related work bfc60177f8ab509bc225becbb58f7e53a0e33e81
"xfs: fix error handling for synchronous writes"
Given that xfs_bwrite actually does the shutdown already after
waiting for the b_iodone completion and given that we actually
found that calling xfs_force_shutdown from inside
xfs_buf_iodone_callbacks was a major contributor the problem
it better to drop this call.
Signed-off-by: Ajeet Yadav <ajeet.yadav.77@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 0402173..cac2ecf 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -1010,7 +1010,6 @@ xfs_buf_iodone_callbacks(
XFS_BUF_UNDELAYWRITE(bp);
trace_xfs_buf_error_relse(bp, _RET_IP_);
- xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
do_callbacks:
xfs_buf_do_callbacks(bp);
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