igt@kms_force_connector_basic@force-connector-state - abort - GEM_BUG_ON(!size)

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1557713822?query_key=a746e6af2a986d5b946cb1681ddf7b4dcff6ee17

<7> [105.889798] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:249:HDMI-A-1]
<7> [105.890032] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:249:HDMI-A-1] disconnected
<7> [105.890097] i915 0000:00:02.0: [drm:drm_edid_override_reset] [CONNECTOR:255:DP-2] EDID override reset
<7> [105.890107] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:255:DP-2]
<7> [105.890110] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:255:DP-2]
<7> [105.890403] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:255:DP-2] disconnected
<7> [105.890471] i915 0000:00:02.0: [drm:drm_edid_override_reset] [CONNECTOR:264:DP-3] EDID override reset
<7> [105.890481] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:264:DP-3]
<7> [105.890484] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:264:DP-3]
<7> [105.890774] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:264:DP-3] disconnected
<6> [105.890980] [IGT] kms_force_connector_basic: exiting, ret=0
<7> [105.891010] [drm:drm_client_modeset_probe] desired mode  set on crtc 80 (0,0)
<7> [105.891073] i915 0000:00:02.0: [drm:__drm_fb_helper_initial_config_and_unlock] test CRTC 0 primary plane
<7> [105.891082] i915 0000:00:02.0: [drm:intelfb_create [i915]] no BIOS fb, allocating a new one
<3> [105.891197] __i915_gem_object_create_region:73 GEM_BUG_ON(!size)
<0> [105.891221] Dumping ftrace buffer:
<0> [105.891229] ---------------------------------
<0> [105.891313] CPU:9 [LOST 15232 EVENTS]
gem_ring-5152      9..... 92575560us : i915_request_retire.part.0: 0000:00:02.0 vcs0: fence 1048:9846, current 9848 
<0> [105.891380] gem_ring-5152      9..... 92575602us : i915_request_retire.part.0: 0000:00:02.0 vcs0: fence 1048:9848, current 9848 
<0> [105.891443] gem_ring-5152      9..... 92575633us : __i915_request_commit: 0000:00:02.0 vcs0: fence 1048:9852, current 9850 
<0> [105.891506] gem_ring-5152      9D..1. 92575650us : __i915_request_submit: 0000:00:02.0 vcs0: fence 1048:9852, current 9850 
<0> [105.891569] gem_ring-5152      9..... 92575690us : i915_request_retire.part.0: 0000:00:02.0 vcs0: fence 1048:9850, current 9850 
<0> [105.891633] gem_ring-5152      9..... 92575721us : __i915_request_commit: 0000:00:02.0 vcs0: fence 1048:9854, current 9850 
<0> [105.891697] gem_ring-5152      9D..1. 92575858us : __i915_request_submit: 0000:00:02.0 vcs0: fence 1048:9854, current 9851 
<0> [105.891758] gem_ring-5152      9..... 92575911us : i915_request_retire.part.0: 0000:00:02.0 vcs0: fence 1048:9852, current 9852 
<0> [105.891820] gem_ring-5152      9..... 92575944us : __i915_request_commit: 0000:00:02.0 vcs0: fence 1048:9856, current 9852