From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
cem@kernel.org, stable@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 6/6] xfs: adjust datadev sector count to reflect internal rt volumes
Date: Sun, 23 Aug 2026 21:47:16 -0700 [thread overview]
Message-ID: <aovM1MZumYu3AsVB@infradead.org> (raw)
In-Reply-To: <20260819230839.GB6072@frogsfrogsfrogs>
On Wed, Aug 19, 2026 at 04:08:39PM -0700, Darrick J. Wong wrote:
> IOWS: 512M data volume, 3.1G internal rt section
> Now let's try some media verification:
>
> # xfs_io -c 'verifymedia -d' -c 'verifymedia -r' /mnt
> verified 536870912/536870912 bytes at offset 0
> 512 MiB, 1 ops; 0.0496 sec (10.067 GiB/sec and 20.1345 ops/sec)
> verified 536870912/536870912 bytes at offset 0
> 512 MiB, 1 ops; 0.0409 sec (12.222 GiB/sec and 24.4439 ops/sec)
>
> Notice how xfs_io says we only verified 512M of the rt volume?
> If you run btrace in the background you'll see that we read the first
> 512M of the volume (aka the data section) twice and never read anything
> from the rt section.
>
> Ofc my solution does too /much/ work:
We should probably wire this up to xfstests..
prev parent reply other threads:[~2026-08-24 4:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 5:23 [PATCHSET v2 1/2] xfs: LLM-inspired bug fixes, part 5 Darrick J. Wong
2026-08-13 5:24 ` [PATCH 1/6] xfs: fix unit conversions in per_binval computation Darrick J. Wong
2026-08-13 5:24 ` [PATCH 2/6] xfs: fix short ifork reaping computation in xreap_bmapi_binval Darrick J. Wong
2026-08-13 5:24 ` [PATCH 3/6] xfs: fix name string recording in slowpath pptr tracepoints Darrick J. Wong
2026-08-13 5:24 ` [PATCH 4/6] xfs: don't leak dqacct if rhashtable insertion fails Darrick J. Wong
2026-08-13 5:25 ` [PATCH 5/6] xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions Darrick J. Wong
2026-08-13 5:25 ` [PATCH 6/6] xfs: adjust datadev sector count to reflect internal rt volumes Darrick J. Wong
2026-08-19 6:33 ` Christoph Hellwig
2026-08-19 6:36 ` Christoph Hellwig
2026-08-19 23:08 ` Darrick J. Wong
2026-08-24 4:47 ` Christoph Hellwig [this message]
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