[Bug 89959] [SKL]igt/gem_concurrent_blit subcase sporadically causes system hang and *ERROR* blitter: timed out waiting for forcewake ack to clear.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89959

--- Comment #34 from cprigent <christophe.prigent at intel.com> ---
Test executed successfully 100 times on SKL-U and SKL-Y.

SKL-U
Platform: SKY LAKE U A0 
CPU : Intel(R) CPU @ 1.6GHz (family:6, model: 78 stepping: 2) 
MCP : SKL-Y C1 2+3 ( ULX-C1)
QDF : QJ57
CPU : SKL C1
Chipset PCH: Sunrise Point LP B1 
CRB : SKY LAKE U A0 DDR3L RVP7 FAB1
Reworks : All Mandatories
Software
BIOS : SKLSE2R1.R00.X090.B01.1506290657
ME FW : 11.0.0.1158
Ksc (EC FW): 1.15

SKL-Y
CPU : Intel(R) Core(TM) m3-6Y30 CPU @ 0.8GHz 4MB (family: 6, model: 78
stepping: 3) MCP : SKL-Y D1 2+2 QDF : QVY3 CPU : SKL D1
Chipset PCH: Sunrise Point LP C1 
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06
Software
BIOS : SKLSE2R1.R00.X093.B02.1507222151
ME FW : 11.0.0.1157
Ksc (EC FW): 1.15

Same kernel, GFX stack and IGT versions.

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