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Date:      Sun, 30 Apr 2000 19:34:00 -0400 (EDT)
From:      Bosko Milekic <bmilekic@dsuper.net>
To:        Brook <forger@bcgrizzly.com>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: 4.0-STABLE reboots on high CPU use?
Message-ID:  <Pine.BSF.4.21.0004301928520.33424-100000@jehovah.technokratis.com>
In-Reply-To: <Pine.BSF.4.21.0004301502380.40746-100000@kodiak.bcgrizzly.com>

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On Sun, 30 Apr 2000, Brook wrote:

> 
> I usually don't run with the console on, but when I did to see what other
> info I could see I got this:
> "Fatal trap 12: Page fault while in kernel mode ..."
> http://ript.net/~forger/DSC0003.JPG 
> 
> Sorry for the focus =)  If there are better ways of getting this info
> please fill me in.

	Sure there are. For one thing, you want to build your kernel with
  debugging information. A combination of the following (or all of the
  following) may be useful for you:

  makeoptions     DEBUG=-g 
  options         DDB
  options         INVARIANTS
  options         INVARIANT_SUPPORT
  options         DIAGNOSTIC

	You also should look at the Handbook and read the `debugging'
  section. In this particular case, you may want to show us the output of
  `trace' from within the debugger, and particularily, the disassembled
  function where the fault occurs with the address of the `Instruction
  Pointer' (in the above screenshot, you had this information) highlighted.

> 
> I can reliably reproduce this by running dnetc for about 20 minutes, so if
> there's something I should do to gather more info it shouldn't be a
> problem.
> 
> +---
> | Brook Miles <forger@bcgrizzly.com>
> | A spec of cosmic dust... with attitude.
> +--------------------------------------
> 



--
 Bosko Milekic * pages.infinit.net/bmilekic/index.html * www.technokratis.com
 bmilekic@dsuper.net * bmilekic@technokratis.com * b.milekic@marianopolis.edu

 "Give a man a fish and he will eat for a day. Teach him how
  to fish, and he will sit in a boat and drink beer all day."




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