Re: [PATCH 2/3] xfs/155: discard stderr when checking for NEEDSREPAIR

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On 2023-06-06 15:29:14, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> This test deliberate crashes xfs_repair midway through writing metadata
> to check that NEEDSREPAIR is always triggered by filesystem writes.
> However, the subsequent scan for the NEEDSREPAIR feature bit prints
> verifier errors to stderr.
> 
> On a filesystem with metadata directories, this leads to the test
> failing with this recorded in the golden output:
> 
> +Metadata CRC error detected at 0x55c0a2dd0d38, xfs_dir3_block block 0xc0/0x1000
> +dir block owner 0x82 doesnt match block 0xbb8cd37e44eb3623
> 
> This isn't specific to metadata directories -- any repair crash could
> leave a metadata structure in a weird state such that starting xfs_db
> will spray verifier errors.  For _check_scratch_xfs_features here, we
> don't care if the filesystem is corrupt; we /only/ care that the
> superblock feature bit is set.  Route all that noise to devnull.
> 
> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> ---

Looks good to me.
Reviewed-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>




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