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SubjectRe: Lockups - lost interrupt
Date
OK...didn't think this one line mattered:

Sep 11 11:54:55 medusa kernel: Deadlock threshold exceeded, forcing Oops.
Sep 11 11:54:55 medusa kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Sep 11 11:54:55 medusa kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
Sep 11 11:54:55 medusa kernel: *pde = 00000000
Sep 11 11:54:55 medusa kernel: Oops: 0002

----- Original Message -----
From: Andrea Arcangeli <andrea@suse.de>
To: Mike Black <mblack@csihq.com>
Cc: Andre Hedrick <andre@suse.com>; Alan Cox <alan@lxorguk.ukuu.org.uk>;
Wade Hampton <whampton@staffnet.com>; <linux-kernel@vger.rutgers.edu>
Sent: Saturday, September 11, 1999 8:34 PM
Subject: Re: Lockups - lost interrupt


The Oops you seen is forced by the IKD debugging code and it's not a bug
(it's just to get a stack trace). But you must have also one other line
before the Oops to tell us the reason of the Oops. You didn't quoted it.

Also probably you want to disable everything in the IKD patch except the
NMI watchdog, if the NMI won't be helpful then you can use other things in
the IKD patch. Actually I am not 100% sure if the other debugging code is
completly reliable, as I don't use it since some time ago. I'll have a
look...

Andrea


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