From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olof Johansson Subject: [regression] 2.6.23 sata_mv EH updates broke my 7042 controller Date: Mon, 1 Oct 2007 17:04:39 -0500 Message-ID: <20071001220439.GA15332@lixom.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: linux-ide@vger.kernel.org, jgarzik@pobox.com Cc: linux-kernel@vger.kernel.org List-Id: linux-ide@vger.kernel.org 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? 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. -Olof