Date: Tue, 27 Mar 2001 22:10:03 -0800 (PST) From: Peter Pentchev <roam@orbitel.bg> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/26161: Kernel Panic on Dual Processor System during heavy disk IO Message-ID: <200103280610.f2S6A3K38831@freefall.freebsd.org>
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The following reply was made to PR kern/26161; it has been noted by GNATS. From: Peter Pentchev <roam@orbitel.bg> To: cjm88@home.com Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: kern/26161: Kernel Panic on Dual Processor System during heavy disk IO Date: Wed, 28 Mar 2001 09:04:49 +0300 On Tue, Mar 27, 2001 at 06:31:21PM -0800, cjm88@home.com wrote: > > >Number: 26161 > >Category: kern > >Synopsis: Kernel Panic on Dual Processor System during heavy disk IO > >Originator: Christophe Michel > >Release: 4.2-RELEASE > >Organization: > >Environment: > FreeBSD u2 4.2-RELEASE FreeBSD 4.2-RELEASE #1: Sat Mar 24 21:27:43 EST 2001 > root@u2:/usr/src/sys/compile/U2 i386 > > >Description: > The system panics when subjected to heavy disk IO. The system is an Intel > altserver with two Pentium 166 processors on a mother board supprting SMP > 1.4. I'm using the on-board adaptec SCSI controller with 2G Seagate drive. > It is quite stable until something requires heavy disk IO and then > crashes within 15 to 30 minutes. The behavior is the same whether the IO > is for swapping or just heavy file access. I managed to photograph the > console just after the panic on two occasions and can forward via e-mail, > those jpgs to whoever would be interested in looking at this problem. > > I tried to replicate the problem on two other FreeBSD platforms but they > were single-cpu boxes. The problem did not occur even after extended > disk pounding (over 24 hours). This is all very nice :) But, can you either: 1. update your system to 4.2-stable (which is actually 4.3-RC now), or 2. follow the instructions on http://www.FreeBSD.org/handbook/kerneldebug.html to build a debugging kernel, run dumpon, have the kernel panic again, this time storing the core dump, then run savecore and examine the kernel crash dump, posting more information about the dump? G'luck, Peter -- Nostalgia ain't what it used to be. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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