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Date: Fri, 26 Jun 2026 06:50:49 +0200
From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, aalbersh@kernel.org,
	linux-xfs@vger.kernel.org
Subject: Re: [PATCH 03/11] xfs_scrub: handle media scans of internal rt
 devices correctly
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References: <178232484383.915780.8675173410074139317.stgit@frogsfrogsfrogs> <178232484494.915780.16900802517191563379.stgit@frogsfrogsfrogs> <20260625120119.GD18766@lst.de> <20260625224854.GM6078@frogsfrogsfrogs>
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On Thu, Jun 25, 2026 at 03:48:54PM -0700, Darrick J. Wong wrote:
> 
> Sort of -- xfs/556 is the media verification test, but it _notruns on
> zoned filesystems because of _require_xfs_scratch_non_zoned.  The
> _notrun logic isn't quite right because while dm-error doesn't work for
> zoned disks, it works fine with -rzoned=1 on conventional storage.
> 
> Well, not entirely -- with zoned=1 and conventional external rt storage
> it works fine, but with an internal rt volume, it does:

[...]

> So I have to patch fstests further to avoid setting errordev=RT when
> there's no external volume.

Cool, thanks!