From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roland Dreier <rdreier@cisco.com>
Subject: Re: Question regarding SLAB corruption
Date: Mon, 09 Jul 2007 14:18:57 -0700
Message-ID: <adahcodxola.fsf@cisco.com>
References: <C2B83D37.A8DF%keir@xensource.com> <adafy3xz8f7.fsf@cisco.com>
	<20070709205607.GT3885@ics.muni.cz> <adaps31xp4u.fsf@cisco.com>
	<20070709211437.GU3885@ics.muni.cz>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <20070709211437.GU3885@ics.muni.cz> (Lukas Hejtmanek's message of
	"Mon, 9 Jul 2007 23:14:37 +0200")
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: xen-devel@lists.xensource.com, Keir Fraser <keir@xensource.com>
List-Id: xen-devel@lists.xenproject.org

 > 2.6.18 kernel + Xen 3.1 + OFED 1.2

OK, if it's OFED 1.2 then you have a pretty recent mthca driver.
See what happens if you comment out the line

		dev->mthca_flags |= MTHCA_FLAG_FMR;

in mthca_mr.c.  (It's in an if/else statement so obviously you have to
get rid of the line in a way that leaves the driver compiling etc...)

That should make the driver stop writing directly into the memory
translation table.