[Bug 84212] [BSW]ES3-CTS.shaders.loops.do_while_dynamic_iterations.vector_counter_vertex fails and causes GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84212

lu hua <huax.lu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |major
            Summary|[BSW]ES3-CTS.shaders.loops. |[BSW]ES3-CTS.shaders.loops.
                   |do_while_dynamic_iterations |do_while_dynamic_iterations
                   |.vector_counter_vertex      |.vector_counter_vertex
                   |fails                       |fails and causes GPU hang

--- Comment #1 from lu hua <huax.lu at intel.com> ---
It also causes GPU hang.

dmesg:
[  179.747534] [drm:i915_gem_open]
[  179.805336] [drm:i915_gem_context_create_ioctl] HW context 1 created
[  179.909310] [drm:valleyview_set_rps] GPU freq request from 160 MHz (16) to
480 MHz (48)
[  185.752305] [drm] stuck on render ring
[  185.767345] [drm] GPU HANG: ecode 0:0x84dffffc, in glcts [3993], reason:
Ring hung, action: reset
[  185.767363] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  185.767369] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  185.767374] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  185.767382] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  185.767387] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  185.767497] [drm:i915_error_work_func] resetting chip
[  185.769291] [drm:init_status_page] render ring hws offset: 0x00013000
[  185.769322] [drm:init_status_page] bsd ring hws offset: 0x00037000
[  185.769342] [drm:init_status_page] blitter ring hws offset: 0x0005a000
[  185.769361] [drm:init_status_page] video enhancement ring hws offset:
0x0007d000
[  185.769416] [drm:i9xx_update_primary_plane] Writing base 00889000 00000000 0
0 7680
[  187.633614] [drm:valleyview_set_rps] GPU freq request from 480 MHz (48) to
320 MHz (32)
[  187.637454] [drm:i915_gem_context_destroy_ioctl] HW context 1 destroyed
[  187.752369] [drm:cherryview_enable_rps] GT fifo had a previous error 1080000
[  187.752444] [drm:cherryview_enable_rps] PCBR offset : 0x7eef8001
[  187.754347] [drm:cherryview_enable_rps] GPLL enabled? yes
[  187.754354] [drm:cherryview_enable_rps] GPU status: 0x00202010
[  187.754359] [drm:cherryview_enable_rps] current GPU freq: 320 MHz (32)
[  187.754363] [drm:cherryview_enable_rps] setting GPU freq to 320 MHz (32)
[  187.754369] [drm:valleyview_set_rps] GPU freq request from 320 MHz (32) to
320 MHz (32)
[  187.856359] [drm:valleyview_set_rps] GPU freq request from 320 MHz (32) to
160 MHz (16)

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