From owner-freebsd-questions Wed Nov 19 10:12:33 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id KAA06640 for questions-outgoing; Wed, 19 Nov 1997 10:12:33 -0800 (PST) (envelope-from owner-freebsd-questions) Received: from gdi.uoregon.edu (gdi.uoregon.edu [128.223.170.30]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id KAA06635 for ; Wed, 19 Nov 1997 10:12:31 -0800 (PST) (envelope-from dwhite@gdi.uoregon.edu) Received: from localhost (dwhite@localhost) by gdi.uoregon.edu (8.8.7/8.8.7) with SMTP id KAA03400; Wed, 19 Nov 1997 10:12:04 -0800 (PST) (envelope-from dwhite@gdi.uoregon.edu) Date: Wed, 19 Nov 1997 10:12:04 -0800 (PST) From: Doug White Reply-To: Doug White To: Brian Somers cc: Jonathan Chen , freebsd-questions@FreeBSD.ORG Subject: Re: Kernel panic in 2.2.2R with ppp In-Reply-To: <199711190054.AAA05051@awfulhak.demon.co.uk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Wed, 19 Nov 1997, Brian Somers wrote: > Seriously, as you already suspect, it can't really be ppp that's > causing the problem. I'd suspect a memory problem. Is the > instruction pointer the same each time ? If so, the only way to > diagnose this is to rebuild your kernel with symbols (-g), wait for > it to crash again, and try to find out where the instruction pointer > is pointing. Whihc of these should I be looking at? Using `nm /kernel | grep xxx', the fault virtual addr doesn't point to anything but the instruction pointer is in the middle of the msdosfs code. > > > Fatal trap 12: page fault while in kernel mode > > > fault virtual address = 0xf057a000 > > > fault code = supervisor read, page not present > > > instruction pointer = 0x8:0xf013d087 > > > stack pointer = 0x10:0xefbffd80 > > > frame pointer = 0x10:0xefbffd9c > > > 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 = 24356 (ppp) > > > interrupt mask = > > > panic: page fault Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major