[Bug 90342] GPU hang "stuck on render ring" after resume on broadwell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90342

--- Comment #5 from Jerome <an.inbox at free.fr> ---
I may have been too optimistic in comment #4 unfortunately...

With the stock kernel and without the "execlists", the bug was systematic.

With kernel 4.0.8 the bug seems much less frequent (2 times over a dozen
suspend/resume). Unfortunately when it hangs it locks solid and requires a
forced power down. No log on reboot.

Ander, could you clarify what fix you had in mind when you closed this bug? If
this is the 4.0.7 fix mentioned in bug #89915 it's not a complete fix for me. I
couldn't find another pointer to a fix (but may have missed it).

Thanks

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