From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Alexey Dobriyan <adobriyan@gmail.com>,
"axboe@kernel.dk" <axboe@kernel.dk>
Cc: "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Subject: Re: [PATCH] null_blk: fix spurious IO errors after failed past-wp access
Date: Sat, 15 Feb 2020 03:20:32 +0000 [thread overview]
Message-ID: <DM6PR04MB5754FA61DFF5CA3C6912775886140@DM6PR04MB5754.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200212202320.GA2704@avx2
Alexey, thanks for the patch however the description is
not simple to understand.
I just sent a patch with a description and the test result.
On 02/12/2020 12:23 PM, Alexey Dobriyan wrote:
> Steps to reproduce:
>
> BLKRESETZONE zone 0
>
> // force EIO
> pwrite(fd, buf, 4096, 4096);
>
> [issue more IO including zone ioctls]
>
> It will start failing randomly including IO to unrelated zones because of
> ->error "reuse". Trigger can be partition detection as well if test is not
> run immediately which is even more entertaining.
>
> The fix is of course to clear ->error where necessary.
>
> Signed-off-by: Alexey Dobriyan (SK hynix)<adobriyan@gmail.com>
> ---
>
> drivers/block/null_blk_main.c | 2 ++
next prev parent reply other threads:[~2020-02-15 3:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 20:23 [PATCH] null_blk: fix spurious IO errors after failed past-wp access Alexey Dobriyan
2020-02-15 3:20 ` Chaitanya Kulkarni [this message]
2020-02-19 16:35 ` Christoph Hellwig
2020-03-12 15:10 ` Jens Axboe
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