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SubjectRe: [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs
On Tue, Jun 24, 2008 at 01:51:41AM +0200, Ingo Molnar wrote:
>
> * Anton Vorontsov <avorontsov@ru.mvista.com> wrote:
>
> > IDE interrupt handler relies on the fact that, if necessary, hardirqs
> > will re-trigger on ISR exit. With fully preemtable IRQs this seems to
> > be not true, since if hardirq thread is currently running, and the
> > same IRQ raised again, then this IRQ will be simply lost.
>
> actually no, that should not happen - if -rt loses an IRQ then something
> broke in the threaded IRQ code. It's supposed to be a drop-in,
> compatible IRQ flow with no driver changes needed.

..just as I thought, the bug somewhere deeper... heh.

> ( also, please do not Cc: mainline maintainers to RFC -rt patches, let
> the -rt maintainers sort out the need for any patch propagation - once
> the patches are sufficiently cooked. Thanks. )

Ok, thanks.

--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2


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