From owner-freebsd-stable Tue Sep 17 21:41:53 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BF21537B401 for ; Tue, 17 Sep 2002 21:41:50 -0700 (PDT) Received: from obsidian.sentex.ca (obsidian.sentex.ca [64.7.128.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id DDAA843E42 for ; Tue, 17 Sep 2002 21:41:49 -0700 (PDT) (envelope-from mike@sentex.net) Received: from simian.sentex.net (pyroxene.sentex.ca [199.212.134.18]) by obsidian.sentex.ca (8.12.6/8.12.6) with ESMTP id g8I4fWVZ050578; Wed, 18 Sep 2002 00:41:32 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <5.1.1.6.0.20020918004028.051eef50@marble.sentex.ca> X-Sender: mdtpop@marble.sentex.ca X-Mailer: QUALCOMM Windows Eudora Version 5.1.1 Date: Wed, 18 Sep 2002 00:42:33 -0400 To: Alain Fauconnet , Frank Mayhar , dschultz@uclink.Berkeley.EDU From: Mike Tancsa Subject: Re: Numerous hard hangs on TWO different ASUS P4T-E w/P4 1.6G Cc: freebsd-stable@FreeBSD.ORG In-Reply-To: <20020918113436.B2542@cscoms.net> References: <20020610104015.D9887@cscoms.net> <20020607143308.A1030@HAL9000.wox.org> <200206072344.g57NiTwD033645@realtime.exit.com> <20020610104015.D9887@cscoms.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: By Sentex Communications (obsidian/20020517) Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG There were some further commits to -STABLE this week to the ATA code. Might be worth a try. ---Mike At 11:34 AM 18/09/2002 +0700, Alain Fauconnet wrote: >Hello, > >Well, these boxes have all been upgraded to 4.6.2 and they still >freeze from time to time unless I disable DMA. If I put: > >hw.ata.ata_dma="0" > >in /boot/loader.conf they become totally stable. I've found a 3rd box >in the company, same motherboard, exhibiting the same problem. > >Has anyone found anything new about this ? > >Greets, >_Alain_ > >On Mon, Jun 10, 2002 at 10:40:15AM +0700, Alain Fauconnet wrote: > > Thanks to all who replied. > > > > I will consider doing a CVS upgrade (first I need to learn how > > to do it). I dislike the idea of a downgrade to 4.4 or whatever older > > than 4.5. > > > > For what it's worth, the box has *not* hung again since I have > > switched off DMA (forced PIO using sysctl). It's clearly not an option > > for long-term production mode though, and it has already happened that > > it had been stable for weeks, so that doesn't really tell much. > > > > Since the box freezes up solid and I can't enter DDB, I really wonder > > what I could do to help tracking down the problem. Suggestions are > > welcome. > > > > Greets, > > _Alain_ > > > > > > > On Fri, Jun 07, 2002 at 04:44:29PM -0700, Frank Mayhar wrote: > > > David Schultz wrote: > > > > Don't rule out hardware problems until you've tried a different model > > > > motherboard. Some old ASUS boards have a problem where, under intense > > > > memory load, the voltage drops below the signalling threshhold and the > > > > box locks up as you've described. (ASUS won't readily admit to this > > > > or any of the other bugs in their boards, but ask them why they did > > > > the third revision to the P2B-F.) That's just an example, but the > > > > point is that both of your P4T-Es could have the same bug. > > > > > > Well, considering that many different people are seeing this on different > > > hardware (I have in fact seen it on two different motherboards, a Tyan > > > Thunder 2500 with dual PIIIs and my current 2466N-4M with dual AMD MPs, > > > different SCSI controllers, too), I think it must be some new bug in > > > FreeBSD. Perhaps in the interrupt handling? I don't really know where > > > to begin to look; if someone could suggest some places, that would be > > > very useful. > > > > > > So far, none of the various suggestions have made any difference at all. > > > I have yet to turn off my IDE and parallel port to get IRQs back, I'll > > > do that this weekend. > > > -- > > > Frank Mayhar frank@exit.com http://www.exit.com/ > > > Exit Consulting http://www.gpsclock.com/ > > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-stable" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message