igt@gem_tiled_fence_blits@basic|igt@gem_unfence_active_buffers|igt@gem_blits@basic - dmesg-warn/incomplete - GEM_BUG_ON(!i915_active_is_idle(&fence->active))

https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4396/fi-blb-e6850/igt@gem_tiled_fence_blits@basic.html

<0> [74.208889] kworker/-2098    1d... 69504149us : __i915_request_commit: 0000:00:02.0 rcs0: fence 3:87372, current 87371 
<0> [74.208987] kworker/-2098    1d... 69504152us : __engine_park: 0000:00:02.0 rcs0: parking
<0> [74.209088] kworker/-2098    1d..2 69504161us : __i915_request_submit: 0000:00:02.0 rcs0: fence 3:87372, current 87371 
<0> [74.209187] gem_tile-2172    1d..1 69504215us : __intel_context_retire: 0000:00:02.0 rcs0: context:3 retire runtime: { total:0ns, avg:0ns }
<0> [74.209304] gem_tile-2172    1.... 69504289us : i915_request_retire: 0000:00:02.0 rcs0: fence 3:87372, current 87372 
<0> [74.209402] gem_tile-2172    1.... 69504293us : __engine_park: 0000:00:02.0 rcs0: parked
<0> [74.209492] kworker/-2098    1.... 69504555us : __gt_park: 0000:00:02.0 
<0> [74.209575] kworker/-2076    1.... 69505294us : i915_vma_revoke_fence: i915_vma_revoke_fence:312 GEM_BUG_ON(!i915_active_is_idle(&fence->active))
<0> [74.209631] ---------------------------------
<4> [74.217692] ------------[ cut here ]------------
<2> [74.217696] kernel BUG at drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c:312!
<4> [74.217736] invalid opcode: 0000 [#1] PREEMPT SMP PTI
<4> [74.217746] CPU: 1 PID: 2076 Comm: kworker/u16:22 Tainted: G     U  W         5.6.0-CI-CI_DRM_8237+ #1
<4> [74.217758] Hardware name: Dell Inc. OptiPlex 755                 /0PU052, BIOS A08 02/19/2008
<4> [74.217874] Workqueue: i915 __i915_gem_free_work [i915]
<4> [74.217934] RIP: 0010:i915_vma_revoke_fence+0x1a1/0x200 [i915]
<4> [74.217944] Code: 00 48 c7 c2 00 5b 31 a0 48 c7 c7 16 a3 18 a0 e8 75 8a 01 e1 bf 01 00 00 00 e8 ab 5c 01 e1 31 f6 bf 09 00 00 00 e8 ef 7e f2 e0 <0f> 0b 48 c7 c1 68 25 34 a0 ba 39 01 00 00 48 c7 c6 00 5b 31 a0 48
<4> [74.217969] RSP: 0018:ffffc90000447da8 EFLAGS: 00010296
<4> [74.217978] RAX: ffff888072750040 RBX: ffff88806b7b2640 RCX: 0000000000000006
<4> [74.217988] RDX: 00000000000016d0 RSI: 0000000000000000 RDI: 0000000000000009
<4> [74.217998] RBP: ffff88806db50040 R08: 0000000000000000 R09: 0000000000000000
<4> [74.218007] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806db50168
<4> [74.218017] R13: 00000000ffffffff R14: ffff88806db50040 R15: ffffffff827614b0
<4> [74.218027] FS:  0000000000000000(0000) GS:ffff88807ae80000(0000) knlGS:0000000000000000
<4> [74.218038] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [74.218046] CR2: 00007fa0ddd19ff8 CR3: 0000000073410000 CR4: 00000000000006e0
<4> [74.218056] Call Trace:
<4> [74.218123]  __i915_vma_unbind+0x1f5/0x530 [i915]
<4> [74.218193]  i915_vma_release+0x101/0x220 [i915]
<4> [74.218257]  __i915_gem_free_objects+0x113/0x4e0 [i915]
<4> [74.218272]  process_one_work+0x260/0x600
<4> [74.218280]  ? worker_thread+0xc9/0x380
<4> [74.218291]  worker_thread+0x37/0x380
<4> [74.218299]  ? process_one_work+0x600/0x600
<4> [74.218306]  kthread+0x119/0x130
<4> [74.218312]  ? kthread_park+0x80/0x80
<4> [74.218321]  ret_from_fork+0x3a/0x50
<4> [74.218330] Modules linked in: vgem i915 snd_hda_codec_analog snd_hda_codec_generic coretemp snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core lpc_ich snd_pcm e1000e mei_me mei prime_numbers ptp pps_core
<4> [74.218365] ---[ end trace 4c2e361d19c1e721 ]---
<4> [74.218420] RIP: 0010:i915_vma_revoke_fence+0x1a1/0x200 [i915]
<4> [74.218430] Code: 00 48 c7 c2 00 5b 31 a0 48 c7 c7 16 a3 18 a0 e8 75 8a 01 e1 bf 01 00 00 00 e8 ab 5c 01 e1 31 f6 bf 09 00 00 00 e8 ef 7e f2 e0 <0f> 0b 48 c7 c1 68 25 34 a0 ba 39 01 00 00 48 c7 c6 00 5b 31 a0 48
<4> [74.218454] RSP: 0018:ffffc90000447da8 EFLAGS: 00010296
<4> [74.218464] RAX: ffff888072750040 RBX: ffff88806b7b2640 RCX: 0000000000000006
<4> [74.218474] RDX: 00000000000016d0 RSI: 0000000000000000 RDI: 0000000000000009
<4> [74.218484] RBP: ffff88806db50040 R08: 0000000000000000 R09: 0000000000000000
<4> [74.218493] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806db50168
<4> [74.218503] R13: 00000000ffffffff R14: ffff88806db50040 R15: ffffffff827614b0
<4> [74.218513] FS:  0000000000000000(0000) GS:ffff88807ae80000(0000) knlGS:0000000000000000
<4> [74.218524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [74.218532] CR2: 00007fa0ddd19ff8 CR3: 0000000073410000 CR4: 00000000000006e0