Re: Hard lockup debugging suggestions? APIC enabling suggestions?

[Alan Cox]

> 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.