From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755901AbXGIJnS (ORCPT ); Mon, 9 Jul 2007 05:43:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751643AbXGIJnK (ORCPT ); Mon, 9 Jul 2007 05:43:10 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:49970 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751067AbXGIJnI (ORCPT ); Mon, 9 Jul 2007 05:43:08 -0400 Date: Mon, 9 Jul 2007 10:49:30 +0100 From: Alan Cox To: Rodney Gordon II Cc: Linux Kernel Mailing List , Tejun Heo Subject: Re: [BUG] IT8212 libata driver *still* hard-freezes system on boot on 2.6.22 final. Message-ID: <20070709104930.4e26f38f@the-village.bc.nu> In-Reply-To: <1183944204.8932.8.camel@ghreen.sphere> References: <1183944204.8932.8.camel@ghreen.sphere> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.8; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 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 Sun, 08 Jul 2007 20:23:24 -0500 Rodney Gordon II wrote: > Have been quite busy, and I regret I haven't tried a rc kernel in > awhile, but, this bug has gone un-fixed still.. Thought I'd throw in > another "heads up".. > > 2.6.22 hang: http://spherevision.org/sync/visual/itelock.jpg > lspci -vvv: http://spherevision.org/sync/tmp/lspci.out > > Pentium-D 830 3.0GHz Dualcore on a ASUS P5LD2 with latest bios rev. > 1804. > > SysRq does not work when this locks up. > > Patches, info, things to try, anything is welcome, I am available for > awhile now and will try anything to get this working. I'm at a bit of a loss on this one I'm afraid - it seems to be specific to a couple of boards and every IT821x box I can lay my paws on works beautifully. It would be useful to know if a kernel built with no DMA support for the IT8212 behaved as that might give us a clue about what is choking. If you look in drivers/ata/pata_it821x.c:it821x_init_one you'll see a pair of lines that say mwdma = 0x1f, udma_mask = 0x7f remove, rebuild and report.. Thanks Alan