From owner-freebsd-current@FreeBSD.ORG Mon Mar 26 15:44:05 2012 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4A5AC1065670; Mon, 26 Mar 2012 15:44:05 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) by mx1.freebsd.org (Postfix) with ESMTP id 27FD58FC18; Mon, 26 Mar 2012 15:44:05 +0000 (UTC) Received: from troutmask.apl.washington.edu (localhost.apl.washington.edu [127.0.0.1]) by troutmask.apl.washington.edu (8.14.5/8.14.5) with ESMTP id q2QFhxY7014810; Mon, 26 Mar 2012 08:43:59 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.14.5/8.14.5/Submit) id q2QFhxn7014809; Mon, 26 Mar 2012 08:43:59 -0700 (PDT) (envelope-from sgk) Date: Mon, 26 Mar 2012 08:43:59 -0700 From: Steve Kargl To: John Baldwin Message-ID: <20120326154359.GB14611@troutmask.apl.washington.edu> References: <20120323222313.GA1331@troutmask.apl.washington.edu> <201203261059.35229.jhb@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201203261059.35229.jhb@freebsd.org> User-Agent: Mutt/1.4.2.3i Cc: freebsd-current@freebsd.org Subject: Re: general protection fault panic X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Mon, 26 Mar 2012 15:44:05 -0000 On Mon, Mar 26, 2012 at 10:59:35AM -0400, John Baldwin wrote: > On Friday, March 23, 2012 6:23:13 pm Steve Kargl wrote: > > Haven't seen one of these in a long time. > > > > %uname -a > > FreeBSD troutmask.apl.washington.edu 10.0-CURRENT FreeBSD > > 10.0-CURRENT #0 r233282: Wed Mar 21 12:39:16 PDT 2012 > > kargl@troutmask.apl.washington.edu:/usr/obj/usr/src/sys/SPEW amd64 > > > > Hand transcribed > > > > Fatal trap 9: general protection fault while in kernel mode > > cpuid = 1; apic id = 01 > > instruction pointer = 0x20:0xffffffff80570b89 > > Can you run gdb on your kernel.debug and 'l *' this address? > Unfortunately, I don't have that kernel.debug anymore. I saw that alc had committed a few changes, so updated the kernel. I do have the kernel and kernel.symbol files. Loading kernel.symbol into gdb shows (gdb) l *0xffffffff80570b89 0xffffffff80570b89 is in strcmp (/usr/src/sys/libkern/strcmp.c:45). 40 */ 41 int 42 strcmp(s1, s2) 43 register const char *s1, *s2; 44 { 45 while (*s1 == *s2++) 46 if (*s1++ == 0) 47 return (0); 48 return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1)); 49 } Don't know if the above helps or is a red-herring. I may be able to reproduce the crash. I give it a try in a few moments. -- Steve