From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266670AbUHWUMP (ORCPT ); Mon, 23 Aug 2004 16:12:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266378AbUHWUK0 (ORCPT ); Mon, 23 Aug 2004 16:10:26 -0400 Received: from av2-1-sn3.vrr.skanova.net ([81.228.9.107]:38596 "EHLO av2-1-sn3.vrr.skanova.net") by vger.kernel.org with ESMTP id S267335AbUHWS7p (ORCPT ); Mon, 23 Aug 2004 14:59:45 -0400 Subject: Re: dma problems with Serverworks CSB5 chipset From: =?ISO-8859-1?Q?Torbj=F6rn?= Olander To: linux-kernel@vger.kernel.org In-Reply-To: <1091988557.769.18.camel@iota> References: <4107E4B3.6070904@watson.wustl.edu> <20040803180821.GB6265@logos.cnet> <1091554289.3898.5.camel@localhost.localdomain> <1091988557.769.18.camel@iota> Content-Type: text/plain; charset=ISO-8859-1 Message-Id: <1093287580.1884.1.camel@iota> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Mon, 23 Aug 2004 20:59:41 +0200 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Just want to report that after changing the disks to two Maxtor 6Y160P0 drives it works fine so the problem must be something in the combination of CSB5 + WD400BB. On Sun, 2004-08-08 at 20:09, Torbjörn Olander wrote: > I'm having the same problems here with linux 2.6.8-rc2 kernel here with > an Intel SAI2 dual SMP P3 motherboard with Serverworks Serverset III LE > chipset and CSB5 southbridge. > > I run one WDC WD400BB-00DEA0 as master on each channel with SW RAID1 for > system. To even get DMA working I had to add > append="ide0=ata66 ide1=ata66" > in my lilo config. The system works fine with low load on the disks, but > if I copy greater amounts of data from a local SW RAID5 array I get the > same DMA timeout error and often it locks up completely. > > If i disable DMA with hdparm the system works fine. > > /proc/ide/svwks output: > (DMA disabled with hdparm) > > ServerWorks OSB4/CSB5/CSB6 > > ServerWorks CSB5 Chipset (rev 93) > ------------------------------- General Status > --------------------------------- > --------------- Primary Channel ---------------- Secondary Channel > ------------- > enabled enabled > --------------- drive0 --------- drive1 -------- drive0 ---------- > drive1 ------ > DMA enabled: no no no no > UDMA enabled: yes no yes no > UDMA enabled: 2 0 2 0 > DMA enabled: 2 2 2 2 > PIO enabled: 4 0 4 0 > > > > On Tue, 2004-08-03 at 19:31, Alan Cox wrote: > > On Maw, 2004-08-03 at 19:08, Marcelo Tosatti wrote: > > > ServerWorks OSB4/5 chipsets are known to not work reliably with the Linux > > > IDE code. AFAIK its a hardware problem which we dont correctly work around. > > > > > > Have you tried disabling DMA? > > > > > > Bart and Alan are IDE experts, they can probably give you more useful > > > information. > > > > CSB5 is reliable, rock solidly so in my experience. OSB4 was the older > > interface with problems. Are these systems SMP, what disks are you using > > and in what IDE mode ? > > > > - > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ -- Med vänliga hälsningar / Best regards Torbjörn Olander tosse@wlug.westbo.se