From: Christoph Hellwig <hch@infradead.org>
To: Coly Li <colyli@fnnas.com>
Cc: Christoph Hellwig <hch@infradead.org>, Yu Kuai <yukuai@fnnas.com>,
linux-raid@vger.kernel.org, linan122@huawei.com, xni@redhat.com,
dan.carpenter@linaro.org
Subject: Re: [PATCH v5 12/12] md: fix abnormal io_opt from member disks
Date: Sun, 18 Jan 2026 22:48:26 -0800 [thread overview]
Message-ID: <aW3TuktsyQ0ADte7@infradead.org> (raw)
In-Reply-To: <BDF73A40-1E2F-425F-8D79-4C6ADCB7566D@fnnas.com>
On Sat, Jan 17, 2026 at 11:28:49AM +0800, Coly Li wrote:
> > 2026年1月16日 23:08，Christoph Hellwig <hch@infradead.org> 写道：
> >
> > On Thu, Jan 15, 2026 at 01:12:40AM +0800, Yu Kuai wrote:
> >> It's reported that mtp3sas can report abnormal io_opt, for consequence,
> >> md array will end up with abnormal io_opt as well, due to the
> >
> > How do you define "abnormal”?
>
> E.g. a spinning hard drive connect to this HBA card reports its max_sectors as 32767 sectors.
> This is around 16MB and too large for normal hard drive.
Which is larger than what we'd expect for the HDD itself, where it
should be around 1MB. But HBAs do weird stuff, so it might actually
be correct here. Have you talked to the mpt3sas maintainers?
next prev parent reply other threads:[~2026-01-19 6:48 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-14 17:12 [PATCH v5 00/12] md: align bio to io_opt for better performance Yu Kuai
2026-01-14 17:12 ` [PATCH v5 01/12] md/raid5: fix raid5_run() to return error when log_init() fails Yu Kuai
2026-01-15 1:28 ` Li Nan
2026-01-15 2:29 ` Xiao Ni
2026-01-16 15:05 ` Christoph Hellwig
2026-01-14 17:12 ` [PATCH v5 02/12] md: merge mddev has_superblock into mddev_flags Yu Kuai
2026-01-16 15:06 ` Christoph Hellwig
2026-01-18 11:30 ` Yu Kuai
2026-01-14 17:12 ` [PATCH v5 03/12] md: merge mddev faillast_dev " Yu Kuai
2026-01-14 17:12 ` [PATCH v5 04/12] md: merge mddev serialize_policy " Yu Kuai
2026-01-14 17:12 ` [PATCH v5 05/12] md/raid5: use mempool to allocate stripe_request_ctx Yu Kuai
2026-01-14 17:12 ` [PATCH v5 06/12] md/raid5: make sure max_sectors is not less than io_opt Yu Kuai
2026-01-14 17:12 ` [PATCH v5 07/12] md: support to align bio to limits Yu Kuai
2026-01-16 15:08 ` Christoph Hellwig
2026-01-18 11:40 ` Yu Kuai
2026-01-19 6:47 ` Christoph Hellwig
2026-01-19 7:21 ` Yu Kuai
2026-01-19 7:27 ` Christoph Hellwig
2026-01-19 7:43 ` Yu Kuai
2026-01-19 8:27 ` Christoph Hellwig
2026-01-19 9:15 ` Yu Kuai
2026-01-14 17:12 ` [PATCH v5 08/12] md: add a helper md_config_align_limits() Yu Kuai
2026-01-14 17:12 ` [PATCH v5 09/12] md/raid5: align bio to io_opt Yu Kuai
2026-01-14 17:12 ` [PATCH v5 10/12] md/raid10: " Yu Kuai
2026-01-14 17:12 ` [PATCH v5 11/12] md/raid0: " Yu Kuai
2026-01-14 17:12 ` [PATCH v5 12/12] md: fix abnormal io_opt from member disks Yu Kuai
2026-01-16 15:08 ` Christoph Hellwig
2026-01-17 3:28 ` Coly Li
2026-01-19 6:48 ` Christoph Hellwig [this message]
2026-01-19 7:24 ` Yu Kuai
2026-01-19 8:36 ` Christoph Hellwig
2026-01-15 23:38 ` [PATCH v5 00/12] md: align bio to io_opt for better performance John Stoffel
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