Re: [PATCH] formalize and fix disabling the RT subvolume

[Christoph Hellwig <hch@lst.de>]

On Wed, Jul 01, 2026 at 09:51:14AM -0700, Darrick J. Wong wrote:
> Ahaha ok with this patch applied, the regressions I see in generic/441
> and xfs/656 go away.  generic/441 chokes because the scratch fs goes
> down due to writeback error, so I assume it's ok to start excluding this
> test.

There also is a dedicated patch disabling them for zoned on the list":

"common: skip data write EIO survival tests on fatal configs"

from Yao Sang.

> I'm guessing that the write failure takes down the filesystem, which is
> why the subsequent xfs_io pread can't even open the file.

Yes.

> 
> Also the comment in xfs/655 and 656 doesn't make sense:
> 
>  # Disable the scratch rt device to avoid test failures relating to the
>  # rt bitmap consuming all the free space in our small data device.
>  unset SCRATCH_RTDEV
> 
> We're creating a regular sized data device, so this shouldn't be an
> issue.

I think this has been copy and pasted with the unsetting of SCRATCH_RTDEV,
as several tests have it..