Re: [PATCH 2/9] xfs/439: repair corrupted filesystem afterwards

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On Tue, May 01, 2018 at 08:39:32AM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> 
> After we mess with logsunit and test that we can't mount the fs, repair
> the filesystem to make sure that repair can deal with it.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> ---
>  tests/xfs/439 |    1 +
>  1 file changed, 1 insertion(+)
> 
> 
> diff --git a/tests/xfs/439 b/tests/xfs/439
> index 215c4b90..9d5f6892 100755
> --- a/tests/xfs/439
> +++ b/tests/xfs/439
> @@ -79,6 +79,7 @@ fi
>  _check_dmesg _filter_assert_dmesg
>  
>  echo "Silence is golden"
> +_scratch_xfs_repair >> $seqres.full 2>&1

But how should we check if repair does fix the corruption? I tried
adding a "scratch_mount" after the repair and expected a success mount.
But that mount also failed, and repair didn't report anything wrong in
$seqres.full. Looks like the corruption was not detected nor repaired.

[ 8278.679149] XFS (dm-1): Mounting V5 Filesystem
[ 8278.679743] XFS (dm-1): log stripe unit 4095 bytes must be a multiple of block size
[ 8278.680583] XFS (dm-1): AAIEEE! Log failed size checks. Abort!
[ 8278.681817] XFS (dm-1): log mount failed

Note that I was using latest for-next branch of xfsprogs.

Thanks,
Eryu

>  
>  # success, all done
>  status=0
> 
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