From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751751AbWFAE3b (ORCPT ); Thu, 1 Jun 2006 00:29:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751707AbWFAE3b (ORCPT ); Thu, 1 Jun 2006 00:29:31 -0400 Received: from smtp.osdl.org ([65.172.181.4]:34534 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750819AbWFAE3a (ORCPT ); Thu, 1 Jun 2006 00:29:30 -0400 Date: Wed, 31 May 2006 21:33:28 -0700 From: Andrew Morton To: "Barry K. Nathan" Cc: mingo@elte.hu, arjan@infradead.org, linux-kernel@vger.kernel.org Subject: Re: 2.6.17-rc5-mm1-lockdep: a rather strange oops Message-Id: <20060531213328.406e71fe.akpm@osdl.org> In-Reply-To: <986ed62e0605311947o1eb18b6qce3bb04c41625ffc@mail.gmail.com> References: <986ed62e0605311747qb8f7a58ybde5d3a87de74309@mail.gmail.com> <20060531181430.bfe25ad5.akpm@osdl.org> <986ed62e0605311947o1eb18b6qce3bb04c41625ffc@mail.gmail.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 31 May 2006 19:47:10 -0700 "Barry K. Nathan" wrote: > On 5/31/06, Andrew Morton wrote: > > The original oops was a jump-to-null. I had a few of those when getting > > the latest git-libata-all tree working, due to missing > > ata_port_operations.data_xfer vectors. But it appears that both sata_sil.c > > and sata_promise.c do have those filled in. > > Ah, but pata_pdc2027x.c doesn't. (Oh, by the way, neither does sata_sil24.c.) > > I tried filling it in, with the following patch, but booting that gave > me lots of weird output before the kernel finally failed to boot from > the root device. "Lots" meaning, enough that I think I'll need a > serial console to get anything meaningful. I didn't see any oopses; > rather, it seemed like the driver was misbehaving. I don't know > whether the fault is in my patch, or elsewhere in the pdc2027x driver. > I don't have time tonight (or probably this week, for that matter) to > look into this further. > > As a reminder (in case anyone else jumps into this thread in the > future), 2.6.17-rc4-mm3 works perfectly... Right, thanks. I'll drop the ata tree. I have no idea what they were thinking of, checking in that stuff.