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From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Subject: Re: [PATCH] null_blk: Fix a NULL pointer dereference
Date: Thu, 23 Sep 2021 09:22:05 -0700	[thread overview]
Message-ID: <941cc786-fea9-4f35-dc19-8b84461285e9@acm.org> (raw)
In-Reply-To: <4c26ddaf-1b25-7a53-6e6b-09b59ada1a99@kernel.dk>

On 9/23/21 9:04 AM, Jens Axboe wrote:
> What options are you loading null_blk with?

The issues I reported are the result of running test blk/010 from the
blktests suite. That test loads the null_blk kernel module twice:

_init_null_blk queue_mode=2 submit_queues=16 nr_devices=32
[ ... ]
_exit_null_blk
_init_null_blk queue_mode=2 submit_queues=16 nr_devices=32 shared_tags=1
[ ... ]
_exit_null_blk

Please let me know if you need more information.

Bart.

  reply	other threads:[~2021-09-23 16:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22 17:50 [PATCH] null_blk: Fix a NULL pointer dereference Bart Van Assche
2021-09-22 17:54 ` Jens Axboe
2021-09-22 18:03   ` Bart Van Assche
2021-09-22 18:26     ` Bart Van Assche
2021-09-23 16:04       ` Jens Axboe
2021-09-23 16:22         ` Bart Van Assche [this message]
2021-09-23 16:39           ` Jens Axboe
2021-09-23 17:51             ` Bart Van Assche
2021-09-23 17:55               ` Jens Axboe
2021-09-23 18:53                 ` Jens Axboe
2021-09-23 19:16                   ` Bart Van Assche

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