Messages in this thread | | | Date | Tue, 24 Jun 2008 04:00:16 +0400 | From | Anton Vorontsov <> | Subject | Re: [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
| |