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From: Jens Axboe <axboe@kernel.dk>
To: Johannes Thumshirn <jthumshirn@suse.de>,
	Omar Sandoval <osandov@osandov.com>
Cc: Linux Block Layer Mailinglist <linux-block@vger.kernel.org>,
	Linux SCSI Mailinglist <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH blktests v2 3/3] sg/001: add regression test for syzcaller generated GPF in sg_read path
Date: Tue, 23 May 2017 08:39:56 -0600	[thread overview]
Message-ID: <5417a4c9-fb9f-af9e-fa4a-fffb113a0f30@kernel.dk> (raw)
In-Reply-To: <491d4221-8d89-8284-0971-d6f0e47b6463@suse.de>

On 05/23/2017 08:25 AM, Johannes Thumshirn wrote:
> On 05/23/2017 04:15 PM, Jens Axboe wrote:
>> Add some code to the framework that allows you to get the corresponding
>> SG device for a SCSI block device? Make that part of the prepare, skip
>> the test if the block device isn't a SCSI dev.
> 
> Well the code is already there (in patch 2/3).
> 
> I'll pack it into the prepare stage.

I tried to look up that commit:

 48ae8484e9fc ("scsi: sg: don't return bogus Sg_requests")

but that isn't in Linus' tree. Even searched for just the title, still
didn't find anything.

I'm assuming this is a bug in the sg.c driver, in which case the 2/3
prep and real test case looks fine. For generic device testing, we
should just use SG_IO and not bother with sg.c at all. The world would
be a better place if we could just get rid of sg.c...

-- 
Jens Axboe

  reply	other threads:[~2017-05-23 14:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-19 13:55 [PATCH blktests v2 0/3] Add SCSI generic test group Johannes Thumshirn
2017-05-19 13:55 ` [PATCH blktests v2 1/3] Add ability to build test-cases Johannes Thumshirn
2017-05-19 13:55 ` [PATCH blktests v2 2/3] tests/sg: add SCSI generic test grouop Johannes Thumshirn
2017-05-19 13:55 ` [PATCH blktests v2 3/3] sg/001: add regression test for syzcaller generated GPF in sg_read path Johannes Thumshirn
2017-05-22 17:59   ` Omar Sandoval
2017-05-23  6:58     ` Johannes Thumshirn
2017-05-23 14:15       ` Jens Axboe
2017-05-23 14:25         ` Johannes Thumshirn
2017-05-23 14:39           ` Jens Axboe [this message]
2017-05-23 14:46             ` Johannes Thumshirn
2017-06-07  6:44 ` [PATCH blktests v2 0/3] Add SCSI generic test group Omar Sandoval
2017-06-07  7:03   ` Johannes Thumshirn

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