Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762491AbXJDJit (ORCPT ); Thu, 4 Oct 2007 05:38:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760861AbXJDJ2m (ORCPT ); Thu, 4 Oct 2007 05:28:42 -0400 Received: from brick.kernel.dk ([87.55.233.238]:25794 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760909AbXJDJ2k (ORCPT ); Thu, 4 Oct 2007 05:28:40 -0400 Date: Thu, 4 Oct 2007 11:30:14 +0200 From: Jens Axboe To: Pierre Ossman Cc: Andrew Morton , Don Mullis , linux-kernel@vger.kernel.org Subject: Re: 2.6.23-rc8-mm2: OOPS in mmc on boot Message-ID: <20071004093014.GE23808@kernel.dk> References: <1191478262.21598.5.camel@dmullis-laptop> <20071003231659.f41df5ed.akpm@linux-foundation.org> <20071004072515.GC5236@kernel.dk> <20071004100154.6093844d@poseidon.drzeus.cx> <20071004080631.GB23808@kernel.dk> <20071004104626.2a219926@poseidon.drzeus.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071004104626.2a219926@poseidon.drzeus.cx> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 847 Lines: 25 On Thu, Oct 04 2007, Pierre Ossman wrote: > On Thu, 4 Oct 2007 10:06:32 +0200 > Jens Axboe wrote: > > > On Thu, Oct 04 2007, Pierre Ossman wrote: > > > > > > Huh? Isn't the block layer supposed to fill in the entire thing? > > > (i.e. current contents shouldn't matter) > > > > Yeah, but sg chaining requires that ->page be filled in properly or it > > could confuse it. I think I'll add some debugging to catch that. > > > > I assume sg_init_one() still can work on an uninitialized sg entry? Yes, but only if that sg entry is not part of a chained list. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/