Re: [PATCH] generic/449: don't run with RT devices

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On Wed, Feb 21, 2024 at 07:35:24AM +0100, Christoph Hellwig wrote:
> generic/449 tests of xattr behavior when we run out of disk space for
> xattrs which are on the main device, but _scratch_mkfs_sized will control
> the size of the RT device.
> 
> Skip it when a RT device is in used, as otherwise it won't test what it
> is supposed to while taking a long time to fill the unrestricted data
> device.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  tests/generic/449 | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/generic/449 b/tests/generic/449
> index 2b77a6a49..4269703f6 100755
> --- a/tests/generic/449
> +++ b/tests/generic/449
> @@ -24,14 +24,15 @@ _require_test
>  _require_acls
>  _require_attrs trusted
>  
> +# This is a test of xattr behavior when we run out of disk space for xattrs,
> +# but _scratch_mkfs_sized will control the size of the RT device.  Skip it
> +# when a RT device is in used, as otherwise it won't test what it is supposed
> +# to while taking a long time to fill the unrestricted data device
> +_require_no_realtime
> +
>  _scratch_mkfs_sized $((256 * 1024 * 1024)) >> $seqres.full 2>&1

Odd... this test only takes ~50s on my rt testing rig.

_scratch_mkfs_sized should restrict the size of both the data device and
the rt volume to 256M, right?  Looking at tot, it sets "-d size=$fssize"
and "-r size=$fssize", so I don't think I understand what's going on
here.

>  _scratch_mount || _fail "mount failed"
>  
> -# This is a test of xattr behavior when we run out of disk space for xattrs,
> -# so make sure the pwrite goes to the data device and not the rt volume.
> -test "$FSTYP" = "xfs" && \
> -	_xfs_force_bdev data $SCRATCH_MNT

Shouldn't this ^^^^ be sufficient to cause $TFILE and all the xattrs to
be allocated from the data device?  Or are they ending up on the rt
volume?

<confused>

--D

> -
>  TFILE=$SCRATCH_MNT/testfile.$seq
>  
>  # Create the test file and choose its permissions
> -- 
> 2.39.2
> 
> 




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