[Bug 97104] [KBL IVB] kicked stuck waiters missed irq when running drv_missed_irq

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97104

--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
Had some fun with the test case as well. It appears that on execlists (at
least) we could get spurious interrupts due to the IIR bit being set for the
user interrupt and a second context-switch interrupt causing processing of the
wakeup.

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