From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <stable-owner@vger.kernel.org>
Received: from verein.lst.de ([213.95.11.211]:53873 "EHLO newverein.lst.de"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1755884AbdEEJGy (ORCPT <rfc822;stable@vger.kernel.org>);
        Fri, 5 May 2017 05:06:54 -0400
Date: Fri, 5 May 2017 11:06:53 +0200
From: Christoph Hellwig <hch@lst.de>
To: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>,
        target-devel@vger.kernel.org, Hannes Reinecke <hare@suse.com>,
        Christoph Hellwig <hch@lst.de>,
        Andy Grover <agrover@redhat.com>,
        David Disseldorp <ddiss@suse.de>, stable@vger.kernel.org
Subject: Re: [PATCH 05/19] target: Allocate sg-list correctly
Message-ID: <20170505090653.GA5248@lst.de>
References: <20170504225102.8931-1-bart.vanassche@sandisk.com> <20170504225102.8931-6-bart.vanassche@sandisk.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20170504225102.8931-6-bart.vanassche@sandisk.com>
Sender: stable-owner@vger.kernel.org
List-ID: <stable.vger.kernel.org>

On Thu, May 04, 2017 at 03:50:48PM -0700, Bart Van Assche wrote:
> Avoid that the iSCSI target driver complains about "Initial page entry
> out-of-bounds" and closes the connection if the SCSI Data-Out buffer
> is larger than the buffer size specified through the CDB. This patch
> prevents that running the libiscsi regression tests against LIO trigger
> an infinite loop of libiscsi submitting a command, LIO closing the
> connection and libiscsi resubmitting the same command.

Can you add a bit more of an explanation of why this happens?  I've
just tried to verify the area, but at least while sitting in a conference
talk I can't quite make sense of the changes.