Date: Wed, 07 Nov 2007 21:22:19 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: Atanas Gendov <atanas.gendov@gmail.com> Cc: hackers@FreeBSD.org Subject: Re: FreeBSD 6.2 Crash Message-ID: <47321E7B.2090101@FreeBSD.org> In-Reply-To: <36e46ac80711071120x49d5182y8976f4e85d4684c8@mail.gmail.com> References: <36e46ac80711071120x49d5182y8976f4e85d4684c8@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Atanas Gendov wrote: > Hi all FreeBSD Hackers! :) > My FreeBSD auto reboot itself and I got this report by kgdb, but > actually I'm not a programmer. I don't know how to debug this error. > Could someone helps with fixing? > Thanx in advanced! > > FreeBSD xxxx.com 6.2-RELEASE-p8 FreeBSD 6.2-RELEASE-p8 #0: Tue Oct 30 > 22:54:18 EET 2007 > atanas@xxxxxxxxxxxx:/usr/obj/usr/src/sys/THURISAZ i386 > > kgdb kernel.debug /var/crash/vmcore.0 > kgdb: kvm_nlist(_stopped_cpus): > kgdb: kvm_nlist(_stoppcbs): > [GDB will not be able to debug user-mode threads: > /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"] > GNU gdb 6.1.1 [FreeBSD] > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you are > welcome to change it and/or distribute copies of it under certain conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "i386-marcel-freebsd". > > Unread portion of the kernel message buffer: > > Fatal double fault: > eip = 0xc0489471 > esp = 0xd568af78 > ebp = 0xd568b094 > panic: double fault Do you use the nve driver? It has a known bug that causes a double fault. Unfortunately kgdb doesn't know how to properly decode double fault backtraces, so there isn't any more information about the cause. If you are not using nve, can you try to reproduce and then see what DDB says about the backtrace? Kris
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?47321E7B.2090101>