Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-0

[Ingo Molnar]

* Rui Nuno Capela <rncbc@xxxxxxxxx> wrote:

> > how hard of a freeze is it? I.e. if you log in over the text console,
> > and do:
> >
> > 	chrt -f 99 -p `pidof 'IRQ 1'`
> > 	chrt -f 99 -p $$
> >
> > can you access the sysrq keys after the freeze happens?
> 
> The lockup is pretty hard indeed. Complete lockup. No sysrq, not even
> any output thru serial console. The only action that has some visible
> effect is turning the power/reset switch off :)

note that unless you try the above, or the debug_direct_keyboard switch,
'soft' lockups will have the same symptoms: no sysrq, no serial console,
an apparently hung system. So unless you've done the equivalent already,
please try my suggestions.

	Ingo
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