From mboxrd@z Thu Jan 1 00:00:00 1970 From: gshan Subject: Re: PIIX4: DMA timeout issue Date: Thu, 31 Jul 2008 09:00:10 +0800 Message-ID: <48910E9A.9060103@alcatel-lucent.com> References: <488ED837.2060509@alcatel-lucent.com> <200807291713.29580.bzolnier@gmail.com> <488FBC6F.2080800@alcatel-lucent.com> <200807302143.37693.bzolnier@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from 215.47.DSNET ([211.144.215.47]:46257 "EHLO cnshjsmin03.cn.alcatel-lucent.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751689AbYGaBVR (ORCPT ); Wed, 30 Jul 2008 21:21:17 -0400 In-Reply-To: <200807302143.37693.bzolnier@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: Jeff Garzik , linux-kernel@vger.kernel.org, Linux IDE mailing list , "Maciej W. Rozycki" Bartlomiej Zolnierkiewicz wrote: > On Wednesday 30 July 2008, gshan wrote: > > [...] > > >> The IRQ routing issue has been fixed. IRQ routing system >> on my board is somewhat complicated: i8259->mlba (FPGA based >> PCI device)->MV64460(system controller). I forgot to set MV64460 >> IRQ pin to level sensitive and edge sensitive was used, which caused >> interrupt lost finally. After changing this to level sensitive, everything >> seems fine. Now, the problem isn't interrupt lost, but suspending DMA >> operations. >> > > Thanks for explaining this. > > >>> Also is the problem still present in 2.6.26 or 2.6.27-rc1? >>> >>> [ I don't see an information about the kernel version that is >>> being used in either of threads? ] >>> >>> >> Sorry, I'm using 2.6.21 kernel. >> > > Would be great to try with some recent one, the issue may have been > fixed already (which is quite likely given a number of bugfixes that > went in recent kernels). > I tried to searched in bugzilla.kernel.org and didn't find there has fix on this issue. Yesterday, Jeff suggested me to turn to ata driver for PIIX4. I tried this yesterday but still have some problems to make PIIX4 workable under ata driver. I will continue working on this today. Gavin > Thanks, > Bart >