igt@i915_selftest@live@gem - abort - i915_live_teardown * timed out, cancelling all further testing

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1732610372?query_key=07718b318393db8a14aaea8275b74f52243d4fb1

<7> [553.669764] i915 0000:4d:00.0: [drm:intel_guc_fw_upload [i915]] GT0: GUC: init took 8ms, freq = 1800MHz, before = 1800MHz, status = 0x8002F034, count = 0, ret = 0
<7> [553.671477] i915 0000:4d:00.0: [drm:guc_enable_communication [i915]] GT0: GUC: communication enabled
<6> [553.675720] i915 0000:4d:00.0: [drm] GT0: GUC: submission enabled
<6> [553.675736] i915 0000:4d:00.0: [drm] GT0: GUC: SLPC enabled
<6> [553.677711] i915 0000:4d:00.0: [drm] GT0: GUC: RC enabled
<3> [556.694928] __i915_live_teardown+0x15/0x40 [i915] timed out, cancelling all further testing.
<0> [556.704212] Dumping ftrace buffer:
<0> [556.707661] ---------------------------------
<0> [556.712570] CPU:21 [LOST 3734 EVENTS]
gem_lmem-6532     21..... 280122400us : i915_request_retire.part.0: 0000:4d:00.0 rcs0: fence f3a:1146, current 1148 
<0> [556.728098] gem_lmem-6532     21..... 280122468us : __i915_request_commit: 0000:4d:00.0 rcs0: fence f3a:1150, current 1148 
<0> [556.739428] gem_lmem-6532     21D..1. 280122501us : __i915_request_submit: 0000:4d:00.0 rcs0: fence f3a:1150, current 1148 
<0> [556.750751] gem_lmem-6520     21..... 280126431us : i915_request_retire.part.0: 0000:4d:00.0 rcs0: fence f3a:1148, current 1150 
<0> [556.762512] gem_lmem-6520     21..... 280126494us : __i915_request_commit: 0000:4d:00.0 rcs0: fence f3a:1152, current 1150 
<0> [556.773833] gem_lmem-6520     21D..1. 280126530us : __i915_request_submit: 0000:4d:00.0 rcs0: fence f3a:1152, current 1150 
<0> [556.785158] gem_lmem-6553     21..... 280240422us : i915_request_retire.part.0: 0000:4d:00.0 bcs0: fence f3b:490, current 492 
<0> [556.796736] gem_lmem-6553     21..... 280240487us : __i915_request_commit: 0000:4d:00.0 bcs0: fence f3b:494, current 492 
<0> [556.807885] gem_lmem-6553     21D..1. 280240519us : __i915_request_submit: 0000:4d:00.0 bcs0: fence f3b:494, current 492 
<0> [556.819027] gem_lmem-6520     21..... 280317396us : i915_request_retire.part.0: 0000:4d:00.0 bcs0: fence f3b:496, current 498 
<0> [556.830602] gem_lmem-6520     21..... 280317461us : __i915_request_commit: 0000:4d:00.0 bcs0: fence f3b:500, current 498 
<0> [556.841738] gem_lmem-6520     21D..1. 280317492us : __i915_request_submit: 0000:4d:00.0 bcs0: fence f3b:500, current 498