On Thu, 2016-09-22 at 11:12 +0200, Dario Faggioli wrote: > _Almost_ correct. However, the problem is more that vcpu_wake() can > happen in response to an IRQ, and when you grab a spinlock in IRQ > context, you need to disable IRQs. > > There is a good explanation of why, here: > Ah, sorry, link is missing! Here:
https://www.kernel.org/doc/Documentation/locking/spinlocks.txt Read the "Lesson 3: spinlocks revisited." section. Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
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