linux-kernel - Re: kernel BUG at drivers/scsi/scsi

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Message-ID: <56533DC1.5070505@linux.vnet.ibm.com>
Date:	Mon, 23 Nov 2015 17:24:33 +0100
From:	Laurent Dufour <ldufour@...ux.vnet.ibm.com>
To:	Ming Lei <ming.lei@...onical.com>
Cc:	Pratyush Anand <panand@...hat.com>,
	Mark Salter <msalter@...hat.com>, linux-block@...r.kernel.org,
	Linux SCSI List <linux-scsi@...eitherer.kernel.org>,
	"James E. J. Bottomley" <JBottomley@...n.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	brking <brking@...ibm.com>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!

On 23/11/2015 16:27, Ming Lei wrote:
> On Mon, Nov 23, 2015 at 11:20 PM, Laurent Dufour
> <ldufour@...ux.vnet.ibm.com> wrote:
>>>
>>> Reverting above commit on top if 4.4-rc1 seems to fix the problem for me.
>>
>> That's what I mentioned earlier ;)
>>
>> Now Ming send an additional patch with seems to fix the bug introduced
>> through the commit bdced438acd8. When testing with this new patch I
>> can't get the panic anymore, but Mark reported he is still hitting it.
> 
> Laurent, thanks for your test on the 1st patch, and looks there are at
> least two problems, and my 2nd patch sent just now should address
> Mark's issue which is caused by bdced438acd83a.
> 
> Once the 2nd one is tested OK, I will send out the two together.

FWIW, I applied the 2nd patch, and my system is still running like a charm.

Cheers,
Laurent.


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