On 12/01/2009 04:36 PM, Chris Lalancette wrote:
In order to be able to call kvm_set_irq from an interrupt context, the IOAPIC lock can't be a (possibly sleeping) mutex. Convert it to a spinlock.
The ioapic can call various notifiers (ack_notifiers, mask_notifiers). Have you validated that all notifier callbacks are safe wrt the lock (that is, they don't sleep or send IPIs)?
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