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SubjectRe: Realtime Preemption, 2.6.12, Beginners Guide?

* Alistair John Strachan <> wrote:

> On Wednesday 06 Jul 2005 14:39, Ingo Molnar wrote:
> > * Alistair John Strachan <> wrote:
> > > Then it continues to boot. I'm getting periodic lockups under high
> > > network load, however, though I suspect that might be the ipw2200
> > > driver I compiled against the realtime-preempt kernel. Are there any
> > > known issues with external modules versus PREEMPT-RT?
> >
> > you should keep an eye on compile-time warnings, but otherwise, most of
> > the API deviations should be runtime detected and should be reported in
> > one way or another (if you have all debugging options enabled).
> I now no longer suspect the ipw2200 module. It locks up within 5
> minutes, reliably, with or without network load. I seem to always have
> to promote a large redraw in X11 before it occurs, but this is just
> hand waving, I don't really have any evidence.

just to make sure: you dont have debug_direct_keyboard when using the
console keyboard and mouse, correct? Sometimes i forget to turn it off
and i get a crash in the keyboard or mouse irq after some time. Under X
that often looks like a silent hard lockup.

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