Subject: Re: kernel BUG at drivers/scsi/scsi_lib.c:1096!
From: Ewan Milne <emilne@redhat.com>
Reply-To: emilne@redhat.com
To: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Mark Salter <msalter@redhat.com>,
        "James E. J. Bottomley" <JBottomley@odin.com>,
        brking <brking@us.ibm.com>, linux-scsi@vger.kernel.org,
        linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-block@vger.kernel.org
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Organization: Red Hat
Date: Fri, 20 Nov 2015 10:28:43 -0500
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On Fri, 2015-11-20 at 15:55 +0100, Hannes Reinecke wrote:
> Can't we have a joint effort here?
> I've been spending a _LOT_ of time trying to debug things here, but
> none of the ideas I've come up with have been able to fix anything.

Yes.  I'm not the one primarily looking at it, and we don't have a
reproducer in-house.  We just have the one dump right now.

> 
> I'm almost tempted to increase the count from scsi_alloc_sgtable()
> by one and be done with ...
> 

That might not fix it if it is a problem with the merge code, though.


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