Date: Thu, 6 Jul 2000 06:50:03 -0700 (PDT) From: Jeff Blaine <jblaine@linus.mitre.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/19726: fatal trap 12 / page fault Message-ID: <200007061350.GAA76666@freefall.freebsd.org>
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The following reply was made to PR kern/19726; it has been noted by GNATS.
From: Jeff Blaine <jblaine@linus.mitre.org>
To: Bill Fumerola <billf@chimesnet.com>
Cc: jblaine@mitre.org, freebsd-gnats-submit@freebsd.org
Subject: Re: kern/19726: fatal trap 12 / page fault
Date: Thu, 06 Jul 2000 09:44:13 -0400
> You need to use symbol-file kernel.debug, and things will start to look
> a lot more interesting. :->
Doh. But hmm...this doesn't look much (if any) different than the
previous info I sent other than it doesn't say 'no debugging symbols
found' or whatever that notice was.
(kgdb) symbol-file kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) exec-file /var/crash/kernel.0
(kgdb) core-file /var/crash/vmcore.0
IdlePTD 2617344
initial pcb at 2184c0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x8
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0171894
stack pointer = 0x10:0xc01fed04
frame pointer = 0x10:0xc01fed0c
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 = Idle
interrupt mask =
trap number = 12
panic: page fault
syncing disks... 8 8 4
done
Uptime: 16h1m14s
dumping to dev #ad/0x20001, offset 196608
dump ata0: resetting devices .. done
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8
7 6 5 4 3 2 1
---
#0 0xc0132ec8 in boot ()
(kgdb) where
#0 0xc0132ec8 in boot ()
#1 0xc013324c in poweroff_wait ()
#2 0xc01ccda5 in trap_fatal ()
#3 0xc01cca7d in trap_pfault ()
#4 0xc01cc647 in trap ()
#5 0xc0171894 in arpintr ()
(kgdb)
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