linux-kernel - Re: paging request BUG in 2.6.19-rc5 on resume

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Message-ID: <455ACE45.4040305@goop.org>
Date:	Wed, 15 Nov 2006 00:22:29 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	linux-kernel@...r.kernel.org, linux-thinkpad@...ux-thinkpad.org,
	Eric Sandeen <sandeen@...hat.com>
Subject: Re: paging request BUG in 2.6.19-rc5 on resume - X60s

Martin Lorenz wrote:
> I only see this when ipw3945 is loaded.
>
> [226156.057000] BUG: unable to handle kernel paging request at virtual
> address 756e6567
>   

OK, very bizarre.  Another instance of this pattern:

   1. Recent Core Duo Thinkpad (X60, T60, X60s)
   2. tainting wireless driver loaded (ipw3945, madwifi)
   3. fault at "Genu" somewhere in filesystem code
   4. not long after a resume from ram (?)

Not exactly the same backtrace as before
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=208488
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=207658), but pretty
close.

The only things I can think of are:

   1. ipw3945 and madwifi are sharing some 802.11 code, which splats
      this pattern into memory for some reason
   2. some firmware/smm bug which end up corrupting a register (?)
   3. erm?  anyone?

    J
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