Re: [PATCH] xen/events: reset active flag for lateeoi events later

[Juergen Gross]

On 05.07.21 11:00, Ross Lagerwall wrote:
> On 2021-06-23 14:09, Juergen Gross wrote:
> > In order to avoid a race condition for user events when changing
> > cpu affinity reset the active flag only when EOI-ing the event.
> >
> > This is working fine as all user events are lateeoi events. Note that
> > lateeoi_ack_mask_dynirq() is not modified as there is no explicit call
> > to xen_irq_lateeoi() expected later.
> >
> > Reported-by: Julien Grall <julien@xxxxxxx>
> > Fixes: b6622798bc50b62 ("xen/events: avoid handling the same event on two cpus at the same time")
> > Tested-by: Julien Grall <julien@xxxxxxx>
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> > ---
>
> Hi Juergen,
>
> Are you planning on backporting this fix to releases <= 5.10?

It is on my todo list. :-)


Juergen

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