igt@gem_exec_schedule@pi-common@vcs0 - incomplete - Received signal SIGQUIT. Killing the test because the kernel is tainted.

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_650/fi-icl-y/igt@gem_exec_schedule@pi-common@vcs0.html

Err	
Starting dynamic subtest: vcs0
Received signal SIGQUIT.
Stack trace: 
 #0 [fatal_sig_handler+0xd6]
 #1 [killpg+0x40]
 #2 [__poll+0x14]
 #3 [igt_fork_hang_detector+0x148]
 #4 [__real_main2515+0x4d37]
 #5 [main+0x27]
 #6 [__libc_start_main+0xe7]
 #7 [_start+0x2a]

<6> [637.477667] [IGT] gem_exec_schedule: starting dynamic subtest vcs0
<7> [637.478977] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 1 created
<7> [637.481422] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 2 created
<7> [640.263304] i915 0000:00:02.0: [drm:edp_panel_vdd_off_sync [i915]] Turning [ENCODER:214:DDI A] VDD off
<7> [640.263552] i915 0000:00:02.0: [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067
<7> [640.263604] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC off
<7> [640.263663] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [640.263712] i915 0000:00:02.0: [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02
<3> [694.855170] INFO: task khugepaged:56 blocked for more than 30 seconds.
<3> [694.855305]       Tainted: G        W         5.9.0-rc4-gc3ef4b507b35e-drmtip_650+ #1
<3> [694.855358] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
<6> [694.855411] task:khugepaged      state:D stack:12192 pid:   56 ppid:     2 flags:0x00004000
<6> [694.855419] Call Trace:
<6> [694.855431]  __schedule+0x41f/0x9a0
<6> [694.855442]  ? wait_for_completion+0x7d/0x110
<6> [694.855448]  schedule+0x37/0xe0
<6> [694.855452]  schedule_timeout+0x11f/0x2c0
<6> [694.855462]  ? mark_held_locks+0x49/0x70
<6> [694.855469]  ? _raw_spin_unlock_irq+0x1f/0x40
<6> [694.855477]  ? wait_for_completion+0x7d/0x110
<6> [694.855481]  wait_for_completion+0xb0/0x110
<6> [694.855492]  __flush_work+0x28b/0x4a0
<6> [694.855499]  ? flush_workqueue_prep_pwqs+0x130/0x130
<6> [694.855520]  ? lru_add_drain+0x140/0x140
<6> [694.855525]  lru_add_drain_all+0x14f/0x1c0
<6> [694.855535]  khugepaged+0x5c/0x2f00
<6> [694.855565]  ? finish_wait+0x80/0x80
<6> [694.855574]  ? collapse_pte_mapped_thp+0x440/0x440
<6> [694.855579]  kthread+0x14d/0x170
<6> [694.855584]  ? kthread_park+0x80/0x80
<6> [694.855592]  ret_from_fork+0x1f/0x30

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_650/fi-icl-y/igt_runner17.txt

[637.575236] [123/123] (379s left) gem_exec_schedule (pi-common)
Starting subtest: pi-common
Starting dynamic subtest: rcs0
Dynamic subtest rcs0: SUCCESS (0.071s)
Starting dynamic subtest: bcs0
Dynamic subtest bcs0: SUCCESS (0.074s)
Starting dynamic subtest: vcs0
[695.147971] Killing the test because the kernel is tainted.
[815.805791] Timeout. Killing the current test with SIGKILL.
[815.979660] Child refuses to die, tainted 0x200. Aborting.
[815.979968] Closing watchdogs
[815.980371] Closing watchdogs