On Thu, Jan 21, 2021 at 05:03:51PM +0100, Jan Beulich wrote:
> On 15.01.2021 15:28, Roger Pau Monne wrote:
> > In vioapic_update_EOI the irq_lock will be dropped in order to forward
> > the EOI to the dpci handler, so there's a window between clearing IRR
> > and checking if the line is asserted
On 15.01.2021 15:28, Roger Pau Monne wrote:
> In vioapic_update_EOI the irq_lock will be dropped in order to forward
> the EOI to the dpci handler, so there's a window between clearing IRR
> and checking if the line is asserted where IRR can change behind our
> back.
>
> Fix this by checking
In vioapic_update_EOI the irq_lock will be dropped in order to forward
the EOI to the dpci handler, so there's a window between clearing IRR
and checking if the line is asserted where IRR can change behind our
back.
Fix this by checking whether IRR is set before attempting to inject a
new
