On Monday 24 April 2006 23:07, you wrote:
> A long time ago, I had a machine with a 3c509 card that would sometimes
Heh, I still have this one in my server. :)
> The fake interrupt could even print out a warning if somebody returns
> SA_HANDLED (since normally there _shouldn't_ have been any work to handle
> for it),
Are you sure this can't race against the hardware?
Something like this:
Kernel Hardware
- generate fake IRQ
- enter the low level IRQ handling
- hardware generates an IRQ and
sets it's IRQ reason registers
to "I have smthng to do"
- enter the handler and service
the IRQ
- return SA_HANDLED
--
Greetings Michael.
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