[Bug 95659] HD 7450, R9-270, GPU locked when testing glmark2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95659

--- Comment #5 from Tiger <tigerliu.ee at gmail.com> ---
So after two days of testing, I found this bug is still present in mesa-11.1.2.

The GPU lockup does not occur after i tested several times with 11.0.2 on my R9
270/HD 5450/HD 7450, but locked up on E6760.

11.1.2 or 11.2.0 + kernel-4.4 = lockup (HD7450,5450,r9-270)
11.0.2 + kernel-4.4 = No problems! 

That looks more like some patches from commit  
51e0b06d9916e126060c0d218de1aaa4e5a4ce26(11.0.2) to commit     
7bcd827806b0816d61122ba3d37dd40178d96d98(11.1.2) introduced this bug and
triggered by 'glmark2 -b grid'. 

I want to use 'format-patch' to pick the patches from 11.0.2 to 11.1.2, can
anyone provide a classification of the patches or some critical patches to me
to locate. I don't have a in-depth understanding of the Mesa.

Furthermore, I'll try the latest Mesa for some times and report back if I
either get a gpu lockup, or don't.

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