From: Christoph Hellwig <hch@lst.de>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Damien Le Moal <dlemoal@kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: Zoned storage and BLK_STS_RESOURCE
Date: Tue, 17 Dec 2024 05:15:15 +0100 [thread overview]
Message-ID: <20241217041515.GA15100@lst.de> (raw)
In-Reply-To: <e75812ec-9b91-42d0-9ca5-d4bae031e319@acm.org>
On Mon, Dec 16, 2024 at 11:24:24AM -0800, Bart Van Assche wrote:
>
> Hi Damien,
>
> If 'qd=1' is changed into 'qd=2' in tests/zbd/012 then this test fails
> against all kernel versions I tried, including kernel version 6.9. Do
> you agree that this test should pass?
That test case is not very well documented and you're not explaining
how it fails.
As far as I can tell the test uses fio to write to a SCSI debug device
using the zbd randwrite mode and the io_uring I/O engine of fio.
We've ever guaranteed ordering of multiple outstanding asynchronous user
writes on zoned block devices, so from that point of view a "failure" due
to write pointer violations when changing the test to use QD=2 is
entirely expected.
next prev parent reply other threads:[~2024-12-17 4:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-16 19:24 Zoned storage and BLK_STS_RESOURCE Bart Van Assche
2024-12-16 20:23 ` Damien Le Moal
2024-12-16 20:42 ` Bart Van Assche
2024-12-16 20:54 ` Damien Le Moal
2024-12-16 21:22 ` Bart Van Assche
2024-12-16 22:49 ` Damien Le Moal
2024-12-17 14:56 ` Damien Le Moal
2024-12-19 5:55 ` Christoph Hellwig
2024-12-19 17:07 ` Bart Van Assche
2024-12-17 4:15 ` Christoph Hellwig [this message]
2024-12-17 15:04 ` Damien Le Moal
2024-12-17 18:38 ` Bart Van Assche
2024-12-17 18:46 ` Jens Axboe
2024-12-17 18:51 ` Damien Le Moal
2024-12-17 19:07 ` Jens Axboe
2024-12-17 19:20 ` Damien Le Moal
2024-12-17 19:25 ` Bart Van Assche
2024-12-17 19:28 ` Damien Le Moal
2024-12-17 19:33 ` Jens Axboe
2024-12-17 19:37 ` Damien Le Moal
2024-12-17 19:41 ` Jens Axboe
2024-12-17 19:48 ` Damien Le Moal
2024-12-17 19:54 ` Jens Axboe
2024-12-17 19:58 ` Jens Axboe
2024-12-17 20:59 ` Damien Le Moal
2024-12-17 21:25 ` Jens Axboe
2024-12-18 6:58 ` Christoph Hellwig
2024-12-19 18:04 ` Bart Van Assche
2024-12-21 8:10 ` Christoph Hellwig
2025-01-06 18:54 ` Bart Van Assche
2024-12-19 6:00 ` Christoph Hellwig
2024-12-19 14:50 ` Jens Axboe
2024-12-19 17:12 ` Bart Van Assche
2024-12-19 23:10 ` Damien Le Moal
2025-01-06 20:14 ` Bart Van Assche
2024-12-21 8:13 ` Christoph Hellwig
2024-12-17 19:32 ` Jens Axboe
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