igt@dmabuf@all@dma_fence_chain - incomplete - INFO: task dmabuf/wait:1173 blocked for more than 61 seconds.
<6> [470.471247] [IGT] dmabuf: starting dynamic subtest dma_fence_chain
<6> [470.508523] dma-buf: Running dma_fence_chain
<6> [470.508558] sizeof(dma_fence_chain)=184
<6> [470.511709] dma-buf: Running dma_fence_chain/sanitycheck
<6> [470.514817] dma-buf: Running dma_fence_chain/find_seqno
<6> [470.540907] dma-buf: Running dma_fence_chain/find_signaled
<6> [470.542109] dma-buf: Running dma_fence_chain/find_out_of_order
<6> [470.543997] dma-buf: Running dma_fence_chain/find_gap
<6> [470.569233] dma-buf: Running dma_fence_chain/find_race
<7> [471.751818] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] Turning [ENCODER:94:DDI A/PHY A] VDD off
<7> [471.753553] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000007
<7> [471.756897] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC_off
<7> [471.760066] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [471.763104] i915 0000:00:02.0: [drm:gen9_set_dc_state.part.15 [i915]] Setting DC state from 00 to 02
<6> [476.501642] Completed 1749 cycles
<6> [476.971023] dma-buf: Running dma_fence_chain/signal_forward
<6> [476.991894] dma-buf: Running dma_fence_chain/signal_backward
<6> [477.056878] dma-buf: Running dma_fence_chain/wait_forward
<6> [478.020130] dma-buf: Running dma_fence_chain/wait_backward
<3> [555.334526] INFO: task dmabuf/wait:1173 blocked for more than 61 seconds.
<3> [555.335016] Tainted: G U W 6.0.0-rc6-Patchwork_108880v1-g3e89f6dc5d22+ #1
<3> [555.335819] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
<6> [555.336514] task:dmabuf/wait state:D stack:15256 pid: 1173 ppid: 2 flags:0x00004000
<6> [555.336601] Call Trace:
<6> [555.336628] <TASK>
<6> [555.336707] __schedule+0x30b/0xa80
<6> [555.336822] ? dma_fence_default_wait+0x105/0x240
<6> [555.336867] ? dma_fence_default_wait+0x1fa/0x240
<6> [555.336922] schedule+0x4e/0xd0
<6> [555.336971] schedule_timeout+0x237/0x2e0
<6> [555.337066] ? dma_fence_default_wait+0x21d/0x240
<6> [555.337130] ? _raw_spin_unlock_irqrestore+0x54/0x70
<6> [555.337177] ? dma_fence_default_wait+0x105/0x240
<6> [555.337250] ? dma_fence_default_wait+0x105/0x240
<6> [555.337374] ? dma_fence_default_wait+0x1fa/0x240
<6> [555.337413] dma_fence_default_wait+0x225/0x240
<6> [555.337480] ? dma_fence_add_callback+0xc0/0xc0
<6> [555.337574] ? seqno_inc2+0x10/0x10 [dmabuf_selftests]
<6> [555.337652] dma_fence_wait_timeout+0x1fd/0x220
<6> [555.337720] __wait_fence_chains+0x15/0x30 [dmabuf_selftests]
<6> [555.337782] kthread+0xed/0x120
<6> [555.337820] ? kthread_complete_and_exit+0x20/0x20
<6> [555.337900] ret_from_fork+0x1f/0x30
<6> [555.338117] </TASK>
<4> [555.338144]
Showing all locks held in the system:
<4> [555.338176] 1 lock held by rcu_tasks_kthre/10:
<4> [555.338207] #0: ffffffff82736f10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0x3c0
<4> [555.338458] 1 lock held by khungtaskd/34:
<4> [555.338486] #0: ffffffff82737920 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x15/0x17a
<4> [555.338647] 1 lock held by in:imklog/362:
<4> [555.338699] 4 locks held by dmesg/944:
<4> [555.338739] 1 lock held by dmabuf/1160:
<4> [555.338768]
<4> [555.338790] =============================================
<6> [599.867674] Console: switching to colour frame buffer device 300x100