From: Christoph Hellwig <hch@lst.de>
To: Bart Van Assche <bvanassche@acm.org>
Cc: syzbot <syzbot+f53c29806b4b263165f3@syzkaller.appspotmail.com>,
axboe@kernel.dk, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
Christoph Hellwig <hch@lst.de>,
Damien Le Moal <dlemoal@kernel.org>,
Ming Lei <ming.lei@redhat.com>
Subject: Re: [syzbot] [block?] WARNING in dd_exit_sched
Date: Tue, 26 Nov 2024 11:25:35 +0100 [thread overview]
Message-ID: <20241126102535.GA16063@lst.de> (raw)
In-Reply-To: <2d5e17d7-53a5-4c4e-b961-96a23abfed9f@acm.org>
On Mon, Nov 25, 2024 at 02:58:55PM -0800, Bart Van Assche wrote:
> All ongoing I/O requests should have completed before elevator_exit() is
> called. del_gendisk() calls __blk_freeze_queue_start() indirectly before
> it calls elevator_exit() but it doesn't wait for the queue freeze
> operation to complete. Isn't that a bug in del_gendisk()?
It does. This should be fixed by:
https://lore.kernel.org/linux-block/20241126102136.619067-1-hch@lst.de/T/#u
prev parent reply other threads:[~2024-11-26 10:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-25 7:08 [syzbot] [block?] WARNING in dd_exit_sched syzbot
2024-11-25 22:58 ` Bart Van Assche
2024-11-26 10:25 ` Christoph Hellwig [this message]
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