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Subject: Re: Hard lockup debugging suggestions?  APIC enabling suggestions?
To: shag-linux-kernel@booyaka.com (Paul Walmsley)
Date: Wed, 30 May 2001 00:25:58 +0100 (BST)
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.4.33.0105291807560.20712-300000@utopia.booyaka.com> from "Paul Walmsley" at May 29, 2001 06:22:57 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> hard several times per day under Linux 2.4.4-ac11.  This lockup occurs
> during standard use of the system, e.g., web browsing or text editing.
> (What's particularly strange about the lockup is that sometimes the system
> will turn off the LCD backlight when it freezes -- but not the LCD panel
> itself.  Other times, it freezes with the backlight on.)

First things to try: Can you make it die without X, can you make it die if
you compile without APM or ACPI support.