igt@gem_persistent_relocs@forked-interruptible-faulting-reloc-thrash-inactive - system hang

Submitted by LAKSHMINARAYANA VUDUM @l4kshmi

Assigned to Intel GFX Bugs mailing list

Link to original bug (#112367)

Description

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-kbl-soraka/igt@gem_persistent_relocs@forked-interruptible-faulting-reloc-thrash-inactive.html
<6> [336.594764] Console: switching to colour dummy device 80x25
<6> [336.595153] [IGT] gem_persistent_relocs: executing
<6> [336.750982] [IGT] gem_persistent_relocs: starting subtest forked-interruptible-faulting-reloc-thrash-inactive
<5> [336.891948] Setting dangerous option prefault_disable - tainting kernel
<5> [337.025136] Setting dangerous option prefault_disable - tainting kernel
<5> [337.030553] Setting dangerous option prefault_disable - tainting kernel
<5> [337.087547] Setting dangerous option prefault_disable - tainting kernel
<7> [338.898104] [drm:edp_panel_vdd_off_sync [i915]] Turning [ENCODER:94:DDI A] VDD off
<7> [338.898679] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000007
<7> [348.319240] [drm:intel_power_well_disable [i915]] disabling DC off
<7> [348.319699] [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [348.320352] [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02
<7> [348.322314] [drm:intel_power_well_enable [i915]] enabling DC off
<7> [348.323632] [drm:gen9_set_dc_state [i915]] Setting DC state from 02 to 00
<5> [364.848050] Setting dangerous option prefault_disable - tainting kernel
<5> [364.910883] Setting dangerous option prefault_disable - tainting kernel
<6> [364.975686] gem_persistent_ (1030) used greatest stack depth: 11936 bytes left