Date: Sun, 9 Nov 2008 19:20:17 +0100 From: Marius Strobl <marius@alchemy.franken.de> To: Sean Thomas Caron <scaron@umich.edu> Cc: freebsd-sparc64@freebsd.org Subject: Re: Occasional kernel panic + reboot on 7.0-RELEASE with fatm driver. Message-ID: <20081109182017.GB76319@alchemy.franken.de> In-Reply-To: <20081106131717.331718q66y289lgk@web.mail.umich.edu> References: <20081106131717.331718q66y289lgk@web.mail.umich.edu>
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On Thu, Nov 06, 2008 at 01:17:17PM -0500, Sean Thomas Caron wrote: > Hi folks, > > I'm using fatm on FreeBSD/sparc64 7.0-RELEASE; it generally works well > but every couple of weeks the system will kernel panic and reboot. I > switched on kernel dumps on panic and here's what I got (this time): > > sonnet.diablonet.net> kgdb kernel.debug /var/crash/vmcore.0 > kgdb: kvm_nlist(_stopped_cpus): > kgdb: kvm_nlist(_stoppcbs): > 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 "sparc64-marcel-freebsd". > > Unread portion of the kernel message buffer: > panic: trap: fast data access mmu miss <...> This apparently is a NULL-pointer dereference (probably "m" in sbsndptr()), with the cause being in one of the stacks involved. I'd suggest to report this backtrace to the atm@ and net@ lists. Marius
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