linux-kernel - Re: Fwd: Fwd: laptop / computer hardlocks during execution of 32bit applications(binaries) on 64bit system (Gentoo)

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Date:	Tue, 08 Jan 2008 16:58:41 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Matthew <jackdachef@...il.com>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Fwd: Fwd: laptop / computer hardlocks during execution of 32bit
 applications(binaries) on 64bit system (Gentoo)

Matthew wrote:
> Hi everyone,
> 
> sorry for the long delay
> 
> - I first had to get home & set up my rig to reproduce this hardlock
> (repeatedly hardlocking / shutting down the laptop doesn't do too good
> to the new hdd ;) )
> 
> and fortunately I was successful :)
> 
> sorry for the bad quality of the pics (they were taken with my phone):
> 
> http://omploader.org/vYWU1/moto_0025.jpg
> http://omploader.org/vYWU2/moto_0026.jpg
> 
> steps to reproduce:
> 1.) log on
> 2.) startx
> 3.) opening some pure 64bit apps == working, no locks
> 4.) opening 32bit-apps (such as firefox-bin, thunderbird-bin) == hard
> lock, only pulling power cord (on laptop) or reset button (rig) works,
> magic sysrq key doesn't (keyboard & mouse == dead)
> 
> I'm currently writing from my "rescue system" (winxp ;) )
> so if you need my kernel-config or some more info of the system please tell
> 

I have been unable to reproduce your problem here, and I notice you have
the proprietary, highly invasive and closed-source Nvidia driver
installed in your kernel.

Can you try using the "nv" or "vesa" (unaccelerated) Xorg drivers and
reproduce the problem that way?

If you *do* reproduce the problem that way, it would be extremely 
helpful if you could enable CONFIG_DEBUG_INFO and provide the vmlinux 
(not vmlinuz/bzImage) file that goes with the crash dump screenshot.

Thanks!

         -hpa
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