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From: J Wunsch <j@uriah.heep.sax.de>
Message-Id: <199603172249.XAA22844@uriah.heep.sax.de>
Subject: Re: March 14th kernel, page faults
To: adam@veda.is (Adam David)
Date: Sun, 17 Mar 1996 23:49:33 +0100 (MET)
Cc: freebsd-current@freebsd.org, dyson@freebsd.org
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
In-Reply-To: <199603172054.UAA07726@veda.is> from "Adam David" at Mar 17, 96 08:54:00 pm
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As Adam David wrote:
> I have 5 crash dumps from 3 days running the March 14th kernel. It is always
> a pagefault that takes it out.
> 
> (kgdb) bt
> #0  boot (howto=256) at ../../i386/i386/machdep.c:935
> #1  0xf01125b6 in panic (fmt=0xf0173e2c "page fault")
>     at ../../kern/subr_prf.c:127
> #2  0xf017495e in trap_fatal (frame=0xefbffeec) at ../../i386/i386/trap.c:758
> #3  0xf01744d0 in trap_pfault (frame=0xefbffeec, usermode=0)
>     at ../../i386/i386/trap.c:680
> #4  0xf017415b in trap (frame={tf_es = 262160, tf_ds = -2147483632,
>       tf_edi = -2147483648, tf_esi = -272642048, tf_ebp = -272629964,
>       tf_isp = -272629996, tf_ebx = -266342240, tf_edx = -259002524,
>       tf_ecx = -203251712, tf_eax = 0, tf_trapno = 12, tf_err = 5439488,
>       tf_eip = -266915382, tf_cs = -266731512, tf_eflags = 66118,
>       tf_esp = -266513952, tf_ss = 348}) at ../../i386/i386/trap.c:319
> #5  0xf016d181 in calltrap ()

> What else do you need?

up 5
frame frame->tf_ebp frame->tf_eip

should get you to the failing piece of code.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)