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SubjectRe: Severe IRQ problems on Foster (P4 Xeon) system
On Wed, 20 Mar 2002, William Lee Irwin III wrote:

> There is/was at least one simulator that shoots the kernel (and
> everything else) dead in response to frobbing the PIC while the local
> APIC timer etc. are going, and I wouldn't be surprised if there were
> some real hardware that did so as well.

The problem was that the the simulator didn't support polling mode, which
linux 2.4 seems to use for handling the timer interrupt. The simulator PIC
implementation wasn't complete if it didn't support polling mode. You
shouldn't see this on real hardware.

Zwane


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