[Bug 110343] [CI][SHARDS] igt@* - dmesg-warn - DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock))

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110343

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Martin Peres from comment #9)
> (In reply to Francesco Balestrieri from comment #7)
> > Still nothing. Closing.
> 
> Sorry to disappoint:
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_13248/fi-skl-gvtdvm/
> igt at i915_module_load@reload-with-fault-injection.html
> 
> <4> [285.220850] ------------[ cut here ]------------
> <4> [285.220851] DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock))
> <4> [285.220862] WARNING: CPU: 0 PID: 7 at kernel/locking/mutex-debug.c:103
> mutex_destroy+0x49/0x50
> <4> [285.220862] Modules linked in: i915(-) snd_hda_codec snd_hwdep
> snd_hda_core snd_pcm vgem crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
> e1000 i2c_piix4 prime_numbers [last unloaded: i915]
> <4> [285.220868] CPU: 0 PID: 7 Comm: kworker/u2:0 Tainted: G     U          
> 5.2.0-rc4-CI-Patchwork_13248+ #1
> <4> [285.220869] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
> <4> [285.220909] Workqueue: i915 __i915_gem_free_work [i915]
> <4> [285.220911] RIP: 0010:mutex_destroy+0x49/0x50
> <4> [285.220912] Code: 00 00 5b c3 e8 58 a4 3b 00 85 c0 74 ed 8b 05 3e 69 23
> 01 85 c0 75 e3 48 c7 c6 e0 d3 08 82 48 c7 c7 88 ae 07 82 e8 e7 06 fa ff <0f>
> 0b eb cc 0f 1f 00 48 b8 11 11 11 11 11 11 11 11 48 89 76 20 48
> <4> [285.220913] RSP: 0018:ffffc90000043de0 EFLAGS: 00010286
> <4> [285.220914] RAX: 0000000000000000 RBX: ffff88803e6dbf08 RCX:
> 0000000000000000
> <4> [285.220915] RDX: 0000000000000002 RSI: 0000000000000000 RDI:
> ffffffff8112867c
> <4> [285.220915] RBP: 0000000000000202 R08: 0000000000000000 R09:
> 0000000000039600
> <4> [285.220916] R10: 0000000000000000 R11: 0000000000000007 R12:
> ffff888037cf0000
> <4> [285.220917] R13: ffff888037cf0068 R14: ffffffff82341c28 R15:
> 0000000000000000
> <4> [285.220918] FS:  0000000000000000(0000) GS:ffff88807da00000(0000)
> knlGS:0000000000000000
> <4> [285.220920] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> <4> [285.220921] CR2: 000055af2b30d258 CR3: 0000000066e88001 CR4:
> 00000000003606f0
> <4> [285.220922] Call Trace:
> <4> [285.220955]  __i915_gem_free_objects+0x36e/0x700 [i915]
...
> <4> [285.221027] general protection fault: 0000 [#1] PREEMPT SMP PTI
> <4> [285.221029] CPU: 0 PID: 3053 Comm: i915_module_loa Tainted: G     U  W 
> 5.2.0-rc4-CI-Patchwork_13248+ #1
> <4> [285.221029] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
> <4> [285.221062] RIP: 0010:i915_gem_object_wait+0x50/0x440 [i915]
> <4> [285.221070] Call Trace:
> <4> [285.221102]  i915_gem_object_set_to_gtt_domain+0x3b/0x270 [i915]
> <4> [285.221133]  i915_gem_suspend_late+0x88/0x120 [i915]

Except that quite clearly is a very different bug and a regression.

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