Re: latest 'guaranteed low latency' patch against 2.2.14

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Feb 08 2000 - 19:46:55 EST


> any device interrupt can be turned into an NMI interrupt - of course
> special handlers have to be written, and careful coding is needed as no
> other kernel facilities can be relied on.

Tell me more. I have two immediate obvious uses if you can steer an ISA irq
to NMI or generate fast timer interrupts that way

1. Z85230 sync cards at > 64Kbit without DMA
2. PC speaker driver

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