From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Bruno A. Crespo" Subject: RE: Dual Athlon XP hangs using tar Date: Thu, 12 Sep 2002 11:36:05 +0200 Sender: linux-smp-owner@vger.kernel.org Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 7Bit Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-smp@vger.kernel.org Chris Newland wrote: > Hi Bruno, > > I tried using dd to copy 100MB from /dev/sda3 to /dev/null using my > Promise FastTrak TX2000 and my system hung when I was using DMA and also > hung when I booted SuSE 8.0 (2.4.18) adding "nodma" to the kernel > parameters (Is this the correct way to disable DMA in linux?). > I'm not sure in SuSE, in fact the last time I take a look at the code, the nodma parameter is not used in the standard kernel. For disabling DMA I use: hdparm -d 0 /dev/hda > Tonight I'm going to try doing heavy I/O without my promise controller to > see if there is a problem with the MSI K7D master and linux DMA copying. > > Regards, > > Chris > >> -----Original Message----- >> From: linux-smp-owner@vger.kernel.org >> [mailto:linux-smp-owner@vger.kernel.org]On Behalf Of Bruno A. Crespo >> Sent: 11 September 2002 15:37 >> To: linux-smp@vger.kernel.org >> Subject: Re: Dual Athlon XP hangs using tar >> >> >> >> >> >On Thu, 2002-09-05 at 10:27, Chris Newland wrote: >> >> Promise RAID drivers for SuSE 8.0 >> >> >Take it up with Promise if you are using their binary raid modules >> >> I have exactly the same problem with the same motherboard, but: >> >> - I have only one processor (Athlon 1900 XP) >> - I don't have a Promise controller, I use the motherboard >> IDE controller >> >> With Redhat 7.3 stock kernel if I try: >> >> dd if=/dev/hda5 of=/dev/null bs=1048576 >> >> the system hang. If I configure the disk to don't use DMA the >> system runs >> fine. >> >> Bruno Crespo >> >> >> - >> To unsubscribe from this list: send the line "unsubscribe linux-smp" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > - > To unsubscribe from this list: send the line "unsubscribe linux-smp" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html