From owner-freebsd-current@FreeBSD.ORG Tue Dec 7 18:30:39 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 83F7716A4CE for ; Tue, 7 Dec 2004 18:30:39 +0000 (GMT) Received: from smtp2.server.rpi.edu (smtp2.server.rpi.edu [128.113.2.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id DC45B43D54 for ; Tue, 7 Dec 2004 18:30:38 +0000 (GMT) (envelope-from drosih@rpi.edu) Received: from [128.113.24.47] (gilead.netel.rpi.edu [128.113.24.47]) by smtp2.server.rpi.edu (8.13.0/8.13.0) with ESMTP id iB7IUUQn018984; Tue, 7 Dec 2004 13:30:32 -0500 Mime-Version: 1.0 Message-Id: In-Reply-To: <1102415520.41b586a04aac0@netchild.homeip.net> References: <1102415520.41b586a04aac0@netchild.homeip.net> Date: Tue, 7 Dec 2004 13:30:30 -0500 To: Alexander Leidinger From: Garance A Drosihn Content-Type: text/plain; charset="iso-8859-1" ; format="flowed" Content-Transfer-Encoding: quoted-printable X-CanItPRO-Stream: default X-RPI-SA-Score: undef - spam-scanning disabled X-Scanned-By: CanIt (www . canit . ca) cc: freebsd-current@freebsd.org cc: =?iso-8859-1?Q?S=F8ren_Schmidt?= Subject: Re: Another twist on WRITE_DMA issues <- ProblemFound X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Dec 2004 18:30:39 -0000 At 11:32 AM +0100 12/7/04, Alexander Leidinger wrote: >Zitat von Garance A Drosihn : > > > Maybe it's an overheating issue, or maybe it's something else. > > But whatever it is, I am going to assume it's the fault of > > something in my PC. > >I had a similar problem... try to monitor the temperature of the >disks with smartmontools. If they are below 50 degree celcius you >may be on the safe side, but if the temperature grows over 55 >degrees I suggest to install some additional fans to cool the >drives. Well, I have a dual-boot system. One system is a very recent snapshot of -stable, and it is getting no errors. The second system was a copy of a snapshot I had built in late October. It was the one getting lots of WRITE_DMA errors. After my previous message in this thread, I copied the kernel from the first system to the second, and was able to do an up-to-the-minute build of 6.x-current on it. I installed that. I then started up a sequence of five consecutive buildworlds, closed up my office and went home for the night. My office always warms up a few degrees when the door is closed for a few hours. The PC finished all five of those buildworlds without a single warning or error. So, now I'm thinking (hoping?) that at least some of my problems have been fixed by system changes between late October and now. Of course, now that I've said that, it will probably start giving errors again... One other long-shot guess on my problems. After thinking about it awhile, it seemed that I was much much more likely to have problems when I was working on the serial console. Also, this PC is the first time that I have set up a serial console on FreeBSD. So, the other thing I did last night (before I did the first build of 6.x) was to get rid of the serial-console setup. This is one step short of using tea-leaves to guess at my problem, but it seemed worth a try. If the stupid PC remains reliable under load for a few weeks, then I will switch the serial console back on and see if my problems return. I realize my reports so far have been pretty useless to S=F8ren, but they are all I have been able come up with... Sorry about that. -- Garance Alistair Drosehn =3D gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu