6-STABLE crashes when surfing via modem
- From: Michael Gerhards <HM-Gerhards@xxxxxx>
- Date: Wed, 24 May 2006 17:14:31 +0200
Hello!
I am running FreeBSD 6-STABLE (last update 14.5.06) on a Fujitsu Siemens
Amilo A notebook. This machine has internet access via kppp and a
Creative ModemBlaster V.92 serial modem.
Sometimes when surfing on the internet (most times with Opera 8.51
AFAIR) the system completly locks up and reboots. I found
http://www.at.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html
and tried to analysis the crash dump in /var/crash but I am totally new
to these things.
"kgdb kernel.debug /var/crash/vmcore.2" on my system gives the following
output:
[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]
(...)
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x29
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc06ad6a6
stack pointer = 0x28:0xd992f9d0
frame pointer = 0x28:0xd992fa00
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 793 (opera)
trap number = 12
panic: page fault
Uptime: 19m31s
Dumping 478 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 478MB (122352 pages) 462 446 430 414 398 382 366 350 334 318
302 286 270 254 238 222 206 190 174 158 142 126 110 94 (CTRL-C to abort)
(CTRL-C to abort) 78 (CTRL-C to abort) (CTRL-C to abort) (CTRL-C to
abort) 62 46 30 14
#0 doadump () at pcpu.h:165
165 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) quit
Has anybody an idea what goes wrong on my system? What could I do in
order to find out what goes wrong?
Many thanks in advance,
Michael
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