On 08/02/2021 14:20, Julien Grall wrote:
I believe this will be the case before our "lateeoi" handling is
becoming active (more precise: when our IRQ handler is returning to
handle_fasteoi_irq()), resulting in the possibility of the same race we
are experiencing now.
I am a bit confused what you mean by "lateeoi" handling is becoming
active. Can you clarify?
See above: the next call of the handler should be allowed only after
xen_irq_lateeoi() for the IRQ has been called.
If the handler is being called earlier we have the race resulting
in the WARN() splats.
I feel it is dislike to understand race with just words. Can you provide
Sorry I meant difficult rather than dislike.
Cheers,
--
Julien Grall
