linux-kernel - Re: [PATCH 1/1] block: rework flush sequencing for blk-mq

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Date:	Fri, 14 Mar 2014 12:10:00 +0100
From:	Hannes Reinecke <hare@...e.de>
To:	Christoph Hellwig <hch@...radead.org>
CC:	Mike Snitzer <snitzer@...hat.com>, Jeff Moyer <jmoyer@...hat.com>,
	Jens Axboe <axboe@...nel.dk>, Shaohua Li <shli@...ionio.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] block: rework flush sequencing for blk-mq

On 03/14/2014 11:58 AM, Christoph Hellwig wrote:
> On Fri, Mar 14, 2014 at 10:52:55AM +0100, Hannes Reinecke wrote:
>> No, I haven't. This issue is only exhibited if you try to run
>> multipath on a non-SCSI device (in this case it was cciss).
>> But then that project got abandoned, and there never was a machine
>> with a multipathed cciss controller.
> 
> We still shouldn't be able to easily crash the kernel because someone
> configured the wrong device.  And with scsi-mq that wrong devices case
> might become a lot more common..
> 
Ok, will be resending.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@...e.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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