[Bug 110848] [BXT] Everything using GPU gets stuck after running+killing parallel Media loads

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110848

--- Comment #74 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Eero Tamminen from comment #73)
> (In reply to Eero Tamminen from comment #72)
> > Two nights in row without any problems with FFmpeg QSV or MSDK in the tests
> > that earlier deadlocked -> FIXED / VERIFIED.
> 
> Chris, something similar started to happen in the same MSDK test within few
> past days.  Is there some regression with mutex handling?
> 
> This time it lead to system hang, network dropped and machine didn't react
> to any other input (from USB mouse/keyboard) besides SysRq-Boot.
> 
> Should I re-open this or file a new bug if it it continues?

I have one in mind, but it's effect is just lost powersaving. To lose network
suggests spinlock/irq issues which is a much different bug. So best to open a
new bug so the information is fresh.

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