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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8

* Ingo Molnar <mingo@elte.hu> wrote:

>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > ah, indeed. Note that this is still not enough - please try to add a
> > local_irq_enable() to netconsole.c's console-write function - does
> > that fix it equally well for you?
> >
> > the reason is that if we crash within an irqs-off section then
> > netconsole will still be called with interrupts disabled and will
> > trigger the assert.
>
> i've added your patch to my tree, plus the extra local_irq_enable(),
> this should also fix fbcon - so no changes needed to netconsole.c. All
> of these problems will go away if/when the console code goes away from
> raw spinlocks.

actually ... i think i'll add the local_irq_enable() to netconsole.c and
fbcon, that way the VGA and serial consoles can still keep interrupts
disabled. That could make the difference between a debuggable and
undebuggable crash ...

Ingo
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