kern/121294: kernel panic pcpu.h or 0x00000000 in ?? ()

Kai Wang kaiwang27 at gmail.com
Mon Mar 3 06:10:03 UTC 2008


The following reply was made to PR kern/121294; it has been noted by GNATS.

From: Kai Wang <kaiwang27 at gmail.com>
To: bug-followup at freebsd.org
Cc:  
Subject: Re: kern/121294: kernel panic pcpu.h or 0x00000000 in ?? ()
Date: Mon, 3 Mar 2008 06:41:33 +0100

 On Sun, Mar 02, 2008 at 05:14:13PM +0000, Kirill wrote:
 > Casually panic. It can be two times a day or one time a week.
 
 Same here, my box (7.0-PRE) crashed once the day before yesterday, twice
 yesterday.
 
 plan0# kgdb -v kernel.debug /var/crash/vmcore.1
 kgdb: core file: /var/crash/vmcore.1
 kgdb: kernel image: kernel.debug
 [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
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 Type "show copying" to see the conditions.
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 This GDB was configured as "i386-marcel-freebsd".
 
 Unread portion of the kernel message buffer:
 Cannot access memory at address 0x839858db
 (kgdb) bt
 #0  0x00000000 in ?? ()
 (kgdb) list
 1       /*-
 2        * Copyright (c) 1991 Regents of the University of California.
 3        * All rights reserved.
 4        * Copyright (c) 1994 John S. Dyson
 5        * All rights reserved.
 6        * Copyright (c) 1994 David Greenman
 7        * All rights reserved.
 8        * Copyright (c) 2005 Alan L. Cox <alc at cs.rice.edu>
 9        * All rights reserved.
 10       *
 (kgdb)


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