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Date: Mon, 12 Jul 2004 09:23:59 +0000
From: Nate Lawson <nate@root.org>
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To: Poul-Henning Kamp <phk@phk.freebsd.dk>
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cc: acpi@freebsd.org
Subject: Re: IBM Thinkpad T41p ACPI trouble.
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Poul-Henning Kamp wrote:
> I bought a Thinkpad T41p some weeks back, and to my delight ACPI
> worked flawlessly.  I could adjust the backlight, turn the little
> white "head light" led on and off, suspend etc.
> 
> Touching the "Fn" key and any other key is pure death, but touching
> the Fn key alone gives me a NUL-char.
> 
> Tonight I went timetravelling with my kernel and get as far back as
> first of may, but all along the same instant death if ACPI was provoked.

As you cvs updated back in time, did you update your kernel or just the 
acpi module?

> It is not quite instant if the laptop is running on batteries, but
> it still dies within a few seconds.
> 
> The hang has all the hallmark properties of an interrupt storm, but
> no kernel warning about interrupt storm results.
>
> Anyone have some good and clear suggestions for how to go from here ?

Try hint.apic.0.disabled="1"
Reply with dmesg and acpidump -t.

--
-Nate