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Re: MIPS, i8259 and spurious interrupts.

To: dom@algor.co.uk (Dominic Sweetman)
Subject: Re: MIPS, i8259 and spurious interrupts.
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Tue, 26 Feb 2002 11:10:38 +0000 (GMT)
Cc: samcconn@cotw.com (Scott A McConnell), linux-mips@oss.sgi.com
In-reply-to: <15483.26654.874273.652089@gladsmuir.algor.co.uk> from "Dominic Sweetman" at Feb 26, 2002 10:49:02 AM
Sender: owner-linux-mips@oss.sgi.com
> Then 8259s are ugly things which have some very CPU-specific
> interactions with x86 CPUs.  In a non-x86 context you need to
> initialise them in particular ways.  
 
Like with a soldering iron 8)

In paticular if you are getting hangs at the point where you allow an IRQ
to come in check the level/edge behaviour and see if in fact you are taking
a continuous stream of interrupts jamming the CPU in irq handling

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