From owner-freebsd-stable@FreeBSD.ORG Sun Aug 10 15:43:51 2003 Return-Path: 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 61E8137B401 for ; Sun, 10 Aug 2003 15:43:31 -0700 (PDT) Received: from lilzmailfe03.liwest.at (lilzmailfe03.liwest.at [212.33.55.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id C752643FBF for ; Sun, 10 Aug 2003 15:43:30 -0700 (PDT) (envelope-from dgw@liwest.at) Received: from cm58-27.liwest.at ([212.33.58.27]) by lilzmailfe03.liwest.at with esmtp (Exim 4.14) id 19lytb-0004hN-B2; Mon, 11 Aug 2003 00:42:39 +0200 From: Daniela To: Doug White Date: Mon, 11 Aug 2003 00:40:56 +0000 User-Agent: KMail/1.5.2 References: <200308102227.51564.dgw@liwest.at> <20030810151936.Q69012@carver.gumbysoft.com> In-Reply-To: <20030810151936.Q69012@carver.gumbysoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200308110040.56138.dgw@liwest.at> cc: stable@freebsd.org Subject: Re: Strange things going on with 4.8 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Aug 2003 22:43:51 -0000 On Sunday 10 August 2003 22:22, Doug White wrote: > On Sun, 10 Aug 2003, Daniela wrote: > > I'm having problems no end on my 4.8-STABLE box, and I hope you can help > > me. > > > > My processes get lots of signals (mostly 6, 10 and 11), and my kernel > > dumps core very often. I have the core dumps from the 4 latest crashes. > > See attachment for more info. > > Notice the common values for IdlePTD and initial pcb. Does this mean > > anything? > > Not particularly ... > > These types of problems are generally caused by: > > 1. Bad memory > 2. Overheated processor, or some similar CPU fault > 3. Bad memory > > > 1) Some time ago KDE was hanging in disk wait state forever. > > 'inode'? > > > 2) When rebuilding the world, make sometimes fails, but when I retry, it > > either works, or fails elsewhere. I have not seen this on -STABLE, only > > on 5.0-RELEASE (on the same computer). > > 5.0-R isn't very representative. You'd have to check against -current. > > > I have already tested the memory (no errors). There weren't any problems > > with 4.6-RELEASE on my old box. > > How did you test the memory? Generally short of using a hardware SIMM > tester its very difficult to identify bad modules. memtest86 run over the > period of several hours can sometimes work. > > BIOS "tests" don't count. I used sysutils/memtest from the ports, and let it run over night. BTW, is there some kind of "operating system" that boots off a floppy and just tests the memory? That would be useful because memtest can't test all the memory. What other diagnostic software could I use? Daniela