| 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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