Query on kgdb output
riaank at gmail.com
Fri Jun 6 06:08:29 UTC 2008
On Thu, Jun 5, 2008 at 11:59 AM, <1 at movesmountains.com> wrote:
> I'm seeing regular kernel panics on my new box with a fresh install of
> 7.0-RELEASE. I'm trying to get some information out of kgdb by following
> the instructions in the handbook - however, I'm getting a 'cannot access
> memory' message when I try it:
> odin2008# kgdb kernel.debug /var/crash/vmcore.1
> [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
> welcome to change it and/or distribute copies of it under certain
> 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 0x2fd9
> (kgdb) where
> #0 0x00000000 in ?? ()
> (kgdb) quit
> Am I doing something wrong, or does this point to a hardware failure? (I'm
> also seeing missing characters in /var/log/messages, which I addressed in a
> separate mail; not sure if it's related).
> Sorry the first reply went to the wrong place.
What info does a stack trace (commadn bt in kgdb) give?
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