[Bug 85684] [BYT/BSW regression]igt/drv_hangman/kms_flip/gem_reset_stats sporadically causes *ERROR* Timed out: waiting for Render to ack

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85684

--- Comment #12 from lu hua <huax.lu at intel.com> ---
Created attachment 109259
  --> https://bugs.freedesktop.org/attachment.cgi?id=109259&action=edit
dmesg(gem_reset_stats)

Test all gem_reset_stats subcases on BYT, it still has this error.

root at x-byt06:/GFX/Test/Infrastructure/infrastructure# dmesg -r|egrep
"<[1-4]>"|grep drm
<3>[  162.062426] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting
for Render to ack.
<3>[  237.209028] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting
for Render to ack.
<3>[  249.232659] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting
for Render to ack.
<3>[  505.732108] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting
for Render to ack.

Intel_gpu_tools/igt_gem_reset_stats_ban-blt    DMESG_WARN         reboot
Intel_gpu_tools/igt_gem_reset_stats_ban-ctx-blt    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_ban-ctx-bsd    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_ban-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_ban-ctx-vebox    NSPT         reboot
Intel_gpu_tools/igt_gem_reset_stats_ban-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_ban-vebox    NSPT     reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-blt    DMESG_WARN      
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-bsd    DMESG_WARN      
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-ctx-blt    NSPT        
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-ctx-bsd    NSPT        
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-ctx-vebox    NSPT      
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-blt    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-bsd    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-reverse-blt    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-reverse-bsd    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-reverse-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-reverse-vebox    NSPT   
  reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-fork-vebox    NSPT     
reboot
Intel_gpu_tools/igt_gem_reset_stats_close-pending-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_close-pending-vebox    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_params    PASS
Intel_gpu_tools/igt_gem_reset_stats_params-ctx-blt    NSPT        reboot
Intel_gpu_tools/igt_gem_reset_stats_params-ctx-bsd    NSPT        reboot
Intel_gpu_tools/igt_gem_reset_stats_params-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_params-ctx-vebox    NSPT      reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-count-blt    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-count-bsd    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-count-ctx-blt    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-count-ctx-bsd    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-count-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-count-ctx-vebox    NSPT        
reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-count-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-count-vebox    NSPT     reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-blt    DMESG_WARN        
reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-bsd    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-ctx-blt    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-ctx-bsd    NSPT   reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-ctx-vebox    NSPT        
reboot
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_reset-stats-vebox    NSPT     reboot
Intel_gpu_tools/igt_gem_reset_stats_unrelated-ctx-blt    NSPT     reboot
Intel_gpu_tools/igt_gem_reset_stats_unrelated-ctx-bsd    NSPT     reboot
Intel_gpu_tools/igt_gem_reset_stats_unrelated-ctx-render    PASS
Intel_gpu_tools/igt_gem_reset_stats_unrelated-ctx-vebox    NSPT   reboot

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