Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!

From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: Ming Lei <ming.lei@canonical.com>
Cc: Pratyush Anand <panand@redhat.com>,
	Mark Salter <msalter@redhat.com>,
	linux-block@vger.kernel.org,
	Linux SCSI List <linux-scsi@vgneitherer.kernel.org>,
	"James E. J. Bottomley" <JBottomley@odin.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Christoph Hellwig <hch@infradead.org>, brking <brking@us.ibm.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!
Date: Mon, 23 Nov 2015 17:24:33 +0100	[thread overview]
Message-ID: <56533DC1.5070505@linux.vnet.ibm.com> (raw)
In-Reply-To: <CACVXFVMNed2Liarx9FA16CERNAepNYdNFhDpn70kb3RBt0eRuQ@mail.gmail.com>

On 23/11/2015 16:27, Ming Lei wrote:
> On Mon, Nov 23, 2015 at 11:20 PM, Laurent Dufour
> <ldufour@linux.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.