From owner-freebsd-current@FreeBSD.ORG Thu Nov 25 07:36:02 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 9092216A4CE; Thu, 25 Nov 2004 07:36:02 +0000 (GMT) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7123A43D2D; Thu, 25 Nov 2004 07:36:02 +0000 (GMT) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id 63B6F72DD4; Wed, 24 Nov 2004 23:36:02 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id 5C01472DCB; Wed, 24 Nov 2004 23:36:02 -0800 (PST) Date: Wed, 24 Nov 2004 23:36:02 -0800 (PST) From: Doug White To: Randy Bush In-Reply-To: <16804.64917.872924.733444@ran.psg.com> Message-ID: <20041124232820.J2006@carver.gumbysoft.com> References: <20041123182254.GB10721@ninthgate.net> <16804.64917.872924.733444@ran.psg.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-current@freebsd.org cc: Robert Watson Subject: Re: Random panics with 5.3-REL, SMP 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: Thu, 25 Nov 2004 07:36:02 -0000 On Wed, 24 Nov 2004, Randy Bush wrote: > > - Using a serial console to the box, you can reliably gather information > > without the core dump mechanism working. > > i caught one, but the rest happened and reboot's beastie wiped the console > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0x41959c25 Thats a wierd address. If I didn't know better, I'd say that there's a MSB flip in there (4+8=c in hex). A backtrace would be interesting to look at. > fault code = supervisor write, page not present > instruction pointer = 0x8:0xc04e813a > stack pointer = 0x10:0xe784d978 > frame pointer = 0x10:0xe784d994 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 68301 (sshd) > trap number = 12 > panic: page fault > cpuid = 0 > boot() called on cpu#0 > Uptime: 9h29m10s > Cannot dump. No dump device defined. Looks like you just need to set 'dumpdev' in rc.conf. What is your boot device and swap partition(s)? > Automatic reboot in 15 seconds - press a key on the console to abort > Rebooting... > cpu_reset called on cpu#0 > cpu_reset: Stopping other CPUs > > since then, i installed a kernel with debugging symbols (blush), but > have yet to get a usable savecore and the beastie got me too. Set 'beastie_disable="YES"' in /boot/loader.conf to stop that from happening. :) if you turn on session logging in your comm program it should capture the output before it scrolls off. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org