igt@i915_selftest@mock@timelines - incomplete - GEM_BUG_ON(ce->timeline)
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8821/shard-tglb2/igt@i915_selftest@mock@timelines.html
<6> [556.426278] i915: Performing mock selftests with st_random_seed=0xf07fe56e st_timeout=500
<6> [556.426281] i915: Running timelines
<6> [556.426288] i915: Running intel_timeline_mock_selftests/mock_hwsp_freelist
<7> [556.426765] mock: [drm:intel_uc_init_early [i915]] enable_guc=2 (guc:no submission:no huc:no)
<6> [556.426768] mock: [drm] Incompatible option enable_guc=2 - GuC is not supported!
<6> [556.426769] mock: [drm] Incompatible option enable_guc=2 - HuC is not supported!
<3> [556.427293] mock_context_alloc:155 GEM_BUG_ON(ce->timeline)
<0> [556.427328] Dumping ftrace buffer:
<0> [556.427368] ---------------------------------
<0> [556.427569] CPU:6 [LOST 401872 EVENTS]
gem_exec-1253 6.... 321622763us : process_csb: 0000:00:02.0 rcs0: bump timeslicing, interval:0
<4> [556.427577] ------------[ cut here ]------------
<4> [556.427608] WARNING: CPU: 1 PID: 1385 at kernel/trace/trace.c:3507 trace_find_next_entry+0xd1/0xe0
<4> [556.427609] Modules linked in: i915(+) vgem snd_hda_codec_hdmi mei_hdcp x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul snd_intel_dspcfg snd_hda_codec snd_hwdep cdc_ether snd_hda_core ghash_clmulni_intel usbnet mii e1000e snd_pcm ptp pps_core mei_me mei intel_lpss_pci prime_numbers [last unloaded: i915]
<4> [556.427620] CPU: 1 PID: 1385 Comm: i915_selftest Tainted: G U 5.8.0-rc7-CI-CI_DRM_8821+ #1
<4> [556.427622] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.R00.3197.A00.2005110542 05/11/2020
<4> [556.427624] RIP: 0010:trace_find_next_entry+0xd1/0xe0
<4> [556.427626] Code: 48 89 83 38 21 00 00 4c 89 e1 31 d2 48 89 ee 48 89 df e8 e2 b5 ff ff 44 89 ab 4c 21 00 00 5b 5d 41 5c 41 5d c3 49 63 d5 eb bb <0f> 0b 49 63 d5 eb b4 31 c0 eb e9 0f 1f 40 00 53 48 8d 8f 58 21 00
<4> [556.427627] RSP: 0018:ffffc90000793900 EFLAGS: 00010046
<4> [556.427629] RAX: ffffffff83df4b40 RBX: ffffffff83df2960 RCX: 0000000000000000
<4> [556.427630] RDX: ffffc90000793928 RSI: ffff88847472c04c RDI: ffffffff83df2960
<4> [556.427631] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
<4> [556.427633] R10: 000000003615050d R11: 00000000fe7e191f R12: ffffc90000793928
<4> [556.427634] R13: 0000000000000040 R14: 00000000001aa301 R15: ffffffff82657a20
<4> [556.427635] FS: 00007fb37fc26300(0000) GS:ffff8884a0680000(0000) knlGS:0000000000000000
<4> [556.427636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [556.427638] CR2: 0000564c99670c90 CR3: 000000049dd62001 CR4: 0000000000760ee0
<4> [556.427639] PKRU: 55555554
<4> [556.427640] Call Trace:
<4> [556.427643] trace_print_lat_context+0x37/0x2a0
<4> [556.427647] ? cpumask_next+0x16/0x20
<4> [556.427649] ? __find_next_entry+0x80/0x180
<4> [556.427652] print_trace_line+0x190/0x4e0
<4> [556.427656] ftrace_dump+0x1cc/0x280
<4> [556.427695] mock_context_alloc+0x147/0x170 [i915]
<4> [556.427727] intel_context_alloc_state+0x45/0x70 [i915]
<4> [556.427758] __intel_context_do_pin+0x1b9/0x4d0 [i915]
<4> [556.427789] create_pinned_context.constprop.42+0x79/0xd0 [i915]
<4> [556.427819] mock_engine_init+0x33/0x70 [i915]
<4> [556.427862] mock_gem_device+0x231/0x320 [i915]
<4> [556.427903] mock_hwsp_freelist+0x83/0x490 [i915]
<4> [556.427908] ? ring_buffer_lock_reserve+0x140/0x410
<4> [556.427912] ? ring_buffer_unlock_commit+0x21/0x130
<4> [556.427957] ? __i915_subtests+0x82/0x210 [i915]
<4> [556.427960] ? trace_vbprintk+0x1a3/0x220
<4> [556.427964] ? __trace_bprintk+0x57/0x80
<4> [556.428006] ? __i915_subtests+0xb8/0x210 [i915]
<4> [556.428043] __i915_subtests+0xb8/0x210 [i915]
<4> [556.428080] ? i915_perf_selftests+0x60/0x60 [i915]
<4> [556.428113] ? __i915_nop_setup+0x10/0x10 [i915]
<4> [556.428147] __run_selftests+0x134/0x170 [i915]
<4> [556.428149] ? 0xffffffffa05a6000
<4> [556.428180] i915_mock_selftests+0x27/0x50 [i915]
<4> [556.428212] i915_init+0x12/0x7c [i915]
<4> [556.428214] ? 0xffffffffa05a6000
<4> [556.428217] do_one_initcall+0x58/0x300
<4> [556.428222] ? do_init_module+0x1d/0x1fa
<4> [556.428227] ? rcu_read_lock_sched_held+0x4d/0x80
<4> [556.428231] ? kmem_cache_alloc_trace+0x2a6/0x2d0
<4> [556.428235] do_init_module+0x56/0x1fa
<4> [556.428237] load_module+0x2348/0x2ab0
<4> [556.428248] ? __do_sys_finit_module+0xe9/0x110
<4> [556.428250] __do_sys_finit_module+0xe9/0x110
<4> [556.428261] do_syscall_64+0x56/0xe0
<4> [556.428264] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4> [556.428265] RIP: 0033:0x7fb37f2c1839
<4> [556.428267] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
<4> [556.428269] RSP: 002b:00007ffc4c8f2878 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4> [556.428270] RAX: ffffffffffffffda RBX: 000055ae39caec00 RCX: 00007fb37f2c1839
<4> [556.428272] RDX: 0000000000000000 RSI: 000055ae39cb07a0 RDI: 0000000000000007
<4> [556.428273] RBP: 000055ae39cb07a0 R08: 0000000000000004 R09: 000055ae39cb5020
<4> [556.428274] R10: 00007ffc4c8f29c0 R11: 0000000000000246 R12: 0000000000000000
<4> [556.428275] R13: 000055ae39cc1300 R14: 0000000000000020 R15: 0000000000000048
<4> [556.428281] irq event stamp: 5783748
<4> [556.428287] hardirqs last enabled at (5783747): [<ffffffff8113218f>] console_unlock+0x4cf/0x5a0
<4> [556.428289] hardirqs last disabled at (5783748): [<ffffffff811a5145>] ftrace_dump+0x45/0x280
<4> [556.428291] softirqs last enabled at (5783374): [<ffffffff81e0038f>] __do_softirq+0x38f/0x498
<4> [556.428293] softirqs last disabled at (5783363): [<ffffffff81c00f4f>] asm_call_on_stack+0xf/0x20
<4> [556.428295] ---[ end trace 148a8974d7cabd27 ]---
<0> [556.428349] gem_exec-1253 6d..1 321622764us : __i915_request_submit: 0000:00:02.0 rcs0: fence 7d:94400, current 94396
<0> [556.428428] gem_exec-1253 6d..1 321622766us : trace_ports.part.82: 0000:00:02.0 rcs0: submit { ccid:20 7d:94400 prio 0 }
````