[Bug 86697] [BSW] GPU hang at the second cycle to execute S4 command

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86697

--- Comment #13 from wendy.wang at intel.com ---
(In reply to Ville Syrjala from comment #11)
> Based on the error state it just hung on the first command it tried to
> execute from the blitter ring, which in this case was an LRI. So the CS
> seems pretty much dead here if even a simple LRI doesn't work.
> 
> What does 'intel_reg_read 0x9400' say?

After GPU hang, checked as below:
root at x-bsw03:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tools# intel_reg_read
0x9400
0x9400 : 0x80

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