From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [regression] 2.6.23 sata_mv EH updates broke my 7042 controller Date: Mon, 01 Oct 2007 18:37:44 -0400 Message-ID: <470176B8.1000109@pobox.com> References: <20071001220439.GA15332@lixom.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:58516 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751912AbXJAWht (ORCPT ); Mon, 1 Oct 2007 18:37:49 -0400 In-Reply-To: <20071001220439.GA15332@lixom.net> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Olof Johansson Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Olof Johansson wrote: > Hi, > > I just pulled out my Marvell 7042 SATA controller here to give it a spin > and noticed that it no longer worked (i.e. init segvs when loading from > it), etc. 2.6.22 is fine. > > Bisecting (just the file drivers/ata/sata_mv.c) resulted in > bdd4dddee325a7dce3e84cf48201a06aa8508aa4 popping out as the culprit > (file version 4537deb5e90b717a725b3d74b58b4bb1d28443d0 is fine). > > Just for sanity checking: Has anyone else used 7042/6042 with the current > mainline driver? The update was tested extensively on 6042. I have a 7042, but haven't found a compatible PCI slot here. > Hardware config in my case: > Highpoint 2310 controller > PPC (big endian) > WD Raptor disk > > Works fine with the other controller I've been using (SIL24), and works > fine if I revert the driver. > > It also works fine if I disable the IOMMU. This would point towards > either a stale dma mapping, or a missing setup of one. > > Not being much at home in the SATA drivers I could keep digging but I > figured I'd bring it up first in case it rings a bell for someone. The IOMMU data point is certainly interesting. Nothing jumps out on a re-review of the patch, so keep digging and let us know ;-) Jeff