Re: Realtime Preemption, 2.6.12, Beginners Guide?

[Ingo Molnar]

* Alistair John Strachan <s0348365@xxxxxxxxxxxx> wrote:

> Okay, I'll send you the vmlinux from -18 with a new digital photo, and 
> config, with CONFIG_4KSTACKS enabled.

this crash too seems to indicate trigger_softirqs()/wakeup_softirqd().  
Somewhere we somehow corrupt the stack and e.g. in oops7.jpg we return 
to 00c011ed. Note that it's a right-shifted address that could be one of 
these:

 c011ed50 t wakeup_softirqd
 c011ed80 t trigger_softirqs

but it looks pretty weird. DEBUG_STACK_POISON (and the full-debug 
.config i sent) could perhaps uncover other types of stack corruptions.

	Ingo
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