Date: Wed, 14 Feb 2007 20:14:00 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Alexandre Sunny Kovalenko <alex.kovalenko@verizon.net> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: -CURRENT panics on intensive fs operations. Message-ID: <20070215011400.GA10455@xor.obsecurity.org> In-Reply-To: <1171500531.780.6.camel@RabbitsDen.RabbitsLawn.verizon.net> References: <1171414959.906.16.camel@RabbitsDen.RabbitsLawn.verizon.net> <20070214011755.GA73381@xor.obsecurity.org> <1171500531.780.6.camel@RabbitsDen.RabbitsLawn.verizon.net>
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On Wed, Feb 14, 2007 at 07:48:51PM -0500, Alexandre Sunny Kovalenko wrote: > On Tue, 2007-02-13 at 20:17 -0500, Kris Kennaway wrote: > > On Tue, Feb 13, 2007 at 08:02:39PM -0500, Alexandre Sunny Kovalenko wrote: > > > I can reliably panic -CURRENT (Feb 11, noon EST) with the something that > > > excersises the file system. I have currently settled on (cd /usr/ports; > > > make clean), but it all started out as doing some "emerges" to test the > > > latest linuxolator. In the case of the "make clean" I have seen it > > > crashing as early as /usr/ports/audio and as late > > > as /usr/ports/textproc. > > > > > > It does not seem to be consistent as to where it crashes (two latest > > > ones are below). This machine is Intel T2400 (1.83GHz 32-bit dual core). > > > I have attached config file to the E-mail. I am going to turn off > > > PREEMPTION for the lack of better ideas, but I will be happy to try any > > > other suggestions. I did run memtest on this machine for about 6 hours > > > without a problem. > > > > How about turning debugging back on to try and catch a more useful > > panic? > I don't know whether it is indeed more useful: > > RabbitsDen# kgdb /usr/obj/usr/src/sys/TPX60/kernel.debug vmcore.0 > kgdb: kvm_read: invalid address (0x16) > [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". > Cannot access memory at address 0x0 > (kgdb) bt > #0 0x00000000 in ?? () > (kgdb) kgdb or libkvm out of date? > Maybe this will help someone: > RabbitsDen# grep savecore /var/log/messages > Feb 14 19:35:35 RabbitsDen savecore: reboot after panic: Bad link elm > 0xc670c3fc prev->next != elm Not really, it's from <sys/queue.h> does it doesn't give any real information. Kris
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