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Re: [Xen-devel] [PATCH v9 12/12] xen/arm: gic_events_need_delivery and irq priorities

On 06/18/2014 11:36 AM, Ian Campbell wrote:
> AIUI there is no relationship here with "xen/arm: make accesses to
> desc->status flags atomic" which fixes an issue which already present
> before this series.

The error was not really there before. We were "safe" because the flags
were cleared before EOIing the IRQ.

Here, we are clearing after EOIing (it has been made by the guest). So
this race condition can happen more often.


Julien Grall

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