8 Feb
2021
8 Feb
'21
2:35 p.m.
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