Re: kernel panic with pccard insert on recent 7.0 CURRENT

["Hidetoshi Shimokawa" <simokawa_(_at_)_FreeBSD_(_dot_)_ORG>]

On 6/19/07, Paolo Pisati <piso_(_at_)_freebsd_(_dot_)_org> wrote:
> On Sun, Jun 17, 2007 at 10:58:12AM +0900, Hidetoshi Shimokawa wrote:
> > And INTR_FILTER doesn't seem well-tested at least for
> > handling of stray interrupts for filter only IRQs.
> > I need the following patch to workaroung the problem.
> >
> > http://people.freebsd.org/~simokawa/tmp/kern_intr.c-20070617.patch
> > on which platform?

amd64

> cause, right now, if there's a stray interrupt we disable the
> irq line if the interrut disable function is hooked to
> ie_disab:

My patch may be wrong. But it seems too restrictive to disable the
interrupt forever
only one stray interrupt. Drivers could return _STRAY even if it is the source.

> kern_intr.c::intr_event_handle():
>
>         ...
>         if (thread & FILTER_HANDLED) {
>                 if (ie->ie_eoi != NULL)
>                         ie->ie_eoi(ie->ie_source);
>         } else {
>                 if (ie->ie_disab != NULL)
>                         ie->ie_disab(ie->ie_source);
>         }
>         ...
>
> bye,
> P.


--
/\ Hidetoshi Shimokawa
\/  simokawa_(_at_)_FreeBSD_(_dot_)_ORG
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