Ingo Molnar wrote:
* Daniel Walker <[email protected]> wrote:
I observed a situation on a dual xeon where IOAPIC_POSTFLUSH , if on,
would actually cause spurious interrupts. It was odd cause it's
suppose to stop them .. If there was a lot of interrupt traffic on one
IRQ , it would cause interrupt traffic on another IRQ. This would
result in "nobody cared" messages , and the storming IRQ line would
get shutdown.
This would only happen in PREEMPT_RT .
does it happen with the latest kernel too? There were a couple of things
broken in the IOAPIC code in various earlier versions.
Ingo
Is this why I have been able to boot the latest versions without the
noapic option (and without noticeable keyboard repeat problems) or has
it just been dumb luck?
--
kr
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