Re: [RFC] [PATCH] Fix misrouted interrupts deadlocks

From: Ingo Molnar
Date: Fri Nov 10 2006 - 09:14:59 EST


On Fri, 2006-11-10 at 16:55 +0300, Pavel Emelianov wrote:
> - int ok = misrouted_irq(irq);
> + int ok;
> +
> + spin_unlock(&desc->lock);
> + ok = misrouted_irq(irq);
> + spin_lock(&desc->lock);

your fix looks reasonable to me - it's a thinko to call misrouted_irq()
with the descriptor lock still held. (btw., how did you find it -
lockdep spinlock debugging or NMI watchdog?)

Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>

Ingo

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