Re: [PATCH] 2.5.68 Fix IO_APIC IRQ assignment bug

From: Maciej W. Rozycki (macro@ds2.pg.gda.pl)
Date: Tue Apr 22 2003 - 10:02:16 EST


On Mon, 21 Apr 2003, Chuck Ebbert wrote:

> But doesn't IRQ 0x80, even though it is software-initiated, contend
> with 'real' device interrupts at priority 8, which would mean there are
> three possible sources (80, 81 and 89?) That's what I was assuming...

 Problems are with local APIC hardware (with queueing arriving IRQ
messages); "int 0x80" doesn't go through the APIC.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

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