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From: J Wunsch <j@uriah.heep.sax.de>
Message-Id: <199511021004.LAA25425@uriah.heep.sax.de>
Subject: Re: "page fault" kernel panic
To: pgrey@jamrock.esd.sgi.com (Paul Grey)
Date: Thu, 2 Nov 1995 11:04:38 +0100 (MET)
Cc: bugs@freebsd.org
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
In-Reply-To: <199511020748.XAA02339@jamrock.esd.sgi.com> from "Paul Grey" at Nov 1, 95 11:48:47 pm
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As Paul Grey wrote:
> 
> (kgdb) up
> #4  0xf019a407 in trap (frame={tf_es = -272695280, tf_ds = -260964336, 
>       tf_edi = 2513652, tf_esi = 4308992, tf_ebp = -272641364, 
>       tf_isp = -272629856, tf_ebx = 2510848, tf_edx = 815260928, 
>       tf_ecx = 610000, tf_eax = 32, tf_trapno = 12, tf_err = -272695294, 
>       tf_eip = -266792497, tf_cs = -272695288, tf_eflags = 65538, tf_esp = 0, 
>       tf_ss = 0}) at ../../i386/i386/trap.c:290
> 290                             (void) trap_pfault(&frame, FALSE);
> (kgdb) frame frame->tf_ebp frame->tf_eip
> Cannot access memory at address 0xefbfd2ac.

Hmm, that's unfortunately not of much use. :-(

Paul, next time it happens, can you please do the following:

* note the EIP value that is printed in the panic message, and
* perform an ``nm /kernel | sort | more'', look up the area
  around the failing EIP value, and post this?

-- 
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. ;-)