igt@gem_fenced_exec_thrash@too-many-fences - dmesg-fail/incomplete - WARN_ON(!ww->contended), WARNING: .* at drivers/gpu/drm/i915/i915_gem.c:\d+ i915_gem_ww_ctx_backoff
<4> [235.755145] WARN_ON(!ww->contended)
<4> [235.755291] WARNING: CPU: 1 PID: 1147 at drivers/gpu/drm/i915/i915_gem.c:1379 i915_gem_ww_ctx_backoff+0xdc/0x150 [i915]
<4> [235.755294] Modules linked in: vgem i915 snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio coretemp snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep lpc_ich snd_hda_core snd_pcm e1000e mei_me ptp pps_core mei prime_numbers
<4> [235.755313] CPU: 1 PID: 1147 Comm: gem_fenced_exec Not tainted 5.9.0-rc2-g7622838fc3524-drmtip_627+ #1
<4> [235.755316] Hardware name: Dell Inc. OptiPlex 755 /0PU052, BIOS A08 02/19/2008
<4> [235.755382] RIP: 0010:i915_gem_ww_ctx_backoff+0xdc/0x150 [i915]
<4> [235.755386] Code: 83 7b 28 00 74 34 48 89 de 48 89 ef e8 9d 27 84 e1 85 c0 74 85 eb c2 48 c7 c6 6f 9c 3a a0 48 c7 c7 fd 9a 3a a0 e8 e4 9d e8 e0 <0f> 0b b8 ea ff ff ff 5b 5d 41 5c 41 5d 41 5e c3 e8 df ba 83 e1 85
<4> [235.755389] RSP: 0018:ffffc90000a3faa0 EFLAGS: 00010286
<4> [235.755392] RAX: 0000000000000000 RBX: ffffc90000a3fe50 RCX: 0000000000000006
<4> [235.755395] RDX: 0000000000000000 RSI: ffffffff8238f33e RDI: ffffffff82335727
<4> [235.755398] RBP: ffffc90000a3fd70 R08: 0000000000000001 R09: 0000000000000001
<4> [235.755401] R10: ffffc90000a3faa8 R11: 0000000032c8f050 R12: 0000000000000000
<4> [235.755404] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000
<4> [235.755407] FS: 00007f950a775e40(0000) GS:ffff88807ae80000(0000) knlGS:0000000000000000
<4> [235.755410] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [235.755413] CR2: 00007ffc17069a38 CR3: 000000006461e000 CR4: 00000000000006e0
<4> [235.755416] Call Trace:
<4> [235.755481] i915_gem_do_execbuffer+0xe8d/0x22c0 [i915]
<4> [235.755509] ? __lock_acquire+0x913/0x1f40
<4> [235.755517] ? lock_acquire+0xb5/0x3c0
<4> [235.755524] ? lock_acquire+0xb5/0x3c0
<4> [235.755529] ? __might_fault+0x39/0x90
<4> [235.755604] i915_gem_execbuffer2_ioctl+0xed/0x220 [i915]
<4> [235.755668] ? i915_gem_execbuffer_ioctl+0x300/0x300 [i915]
<4> [235.755673] drm_ioctl_kernel+0xb0/0xf0
<4> [235.755681] drm_ioctl+0x305/0x3c0
<4> [235.755746] ? i915_gem_execbuffer_ioctl+0x300/0x300 [i915]
<4> [235.756197] ? syscall_enter_from_user_mode+0x1b/0x220
<4> [235.756201] ? syscall_enter_from_user_mode+0x1b/0x220
<4> [235.756210] __x64_sys_ioctl+0x71/0xb0
<4> [235.756217] do_syscall_64+0x33/0x80
<4> [235.756222] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4> [235.756225] RIP: 0033:0x7f9509bec5d7
<4> [235.756229] Code: b3 66 90 48 8b 05 b1 48 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 48 2d 00 f7 d8 64 89 01 48
<4> [235.756232] RSP: 002b:00007ffc170688d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
<4> [235.756236] RAX: ffffffffffffffda RBX: 00007ffc170689b0 RCX: 00007f9509bec5d7
<4> [235.756239] RDX: 00007ffc170689b0 RSI: 0000000040406469 RDI: 0000000000000006
<4> [235.756242] RBP: 00007ffc170689b0 R08: 0000000000000000 R09: 00000000000000eb
<4> [235.756245] R10: 0000000000000056 R11: 0000000000000246 R12: 0000000040406469
<4> [235.756248] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000006
<4> [235.756262] irq event stamp: 365557
<4> [235.756266] hardirqs last enabled at (365563): [<ffffffff811328ef>] console_unlock+0x4cf/0x5a0
<4> [235.756270] hardirqs last disabled at (365568): [<ffffffff81132499>] console_unlock+0x79/0x5a0
<4> [235.756274] softirqs last enabled at (291872): [<ffffffff81e0038e>] __do_softirq+0x38e/0x497
<4> [235.756277] softirqs last disabled at (291865): [<ffffffff81c00f52>] asm_call_on_stack+0x12/0x20
<4> [235.756280] ---[ end trace be1a498a49c3c342 ]---