[Bug 63914] [hsw] Cycling between GL/X rendering causes a hard hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63914

--- Comment #55 from Ben Widawsky <ben at bwidawsk.net> ---
(In reply to comment #53)
> I am on drm-intel-next-queued (fae5cbf to be precise) and can still hang my
> machine very reliably running the Ben's script in Comment 43. Am I just on
> the wrong branch or is this not entirely fixed?
> 
> For the record, I have a desktop GT2 (on the i7-4770):
> $ lspci -nn | grep VGA
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200
> v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)

The script I posted is now known to be exercise a HW bug. 

http://lists.freedesktop.org/archives/intel-gfx/2013-July/030188.html

I am in favor of disabling GPU top for HSW without a special parameter FWIW

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