[Bug 111397] [CI][BAT]: igt at i915_selftest@live_hangcheck - timeout - list_add corruption. next->prev should be prev (ffff888405f2c430), but was ffff88848d9492c0. (next=ffff88848d94b480).

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111397

Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #4 from Martin Peres <martin.peres at free.fr> ---
Still visible:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6712/shard-apl1/igt@gem_exec_whisper@normal.html

<6> [686.556750] [IGT] gem_exec_whisper: starting subtest normal
<4> [816.468720] ------------[ cut here ]------------
<4> [816.468795] list_add corruption. next->prev should be prev
(ffff88826140c430), but was ffff88825dec1110. (next=ffff888273e21980).
<4> [816.468824] WARNING: CPU: 2 PID: 1255 at lib/list_debug.c:25
__list_add_valid+0x36/0x70
<4> [816.468828] Modules linked in: vgem mei_hdcp x86_pkg_temp_thermal coretemp
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i915 lpc_ich r8169 realtek
snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hwdep snd_hda_core snd_pcm
mei_me pinctrl_broxton pinctrl_intel mei prime_numbers
<4> [816.468858] CPU: 2 PID: 1255 Comm: kworker/u8:23 Tainted: G     U         
  5.3.0-rc4-CI-CI_DRM_6712+ #1
<4> [816.468862] Hardware name:  /NUC6CAYB, BIOS
AYAPLCEL.86A.0049.2018.0508.1356 05/08/2018
<4> [816.468964] Workqueue: i915 retire_work_handler [i915]
<4> [816.468971] RIP: 0010:__list_add_valid+0x36/0x70
<4> [816.468976] Code: 48 8b 10 4c 39 c2 75 27 48 39 f8 74 39 48 39 fa 74 34 b8
01 00 00 00 c3 48 89 d1 48 c7 c7 b8 26 0e 82 48 89 c2 e8 aa 58 bc ff <0f> 0b 31
c0 c3 48 89 c1 4c 89 c6 48 c7 c7 08 27 0e 82 e8 93 58 bc
<4> [816.468980] RSP: 0018:ffffc9000089fd40 EFLAGS: 00010286
<4> [816.468986] RAX: 0000000000000000 RBX: ffff888262f59240 RCX:
0000000000000001
<4> [816.468990] RDX: 0000000080000001 RSI: ffff88826afd0940 RDI:
00000000ffffffff
<4> [816.468993] RBP: ffffc9000089fd80 R08: ffff88826afd0940 R09:
0000000000000000
<4> [816.468998] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff88825dec1cb8
<4> [816.469001] R13: 0000000000000000 R14: ffff88825dec1ce0 R15:
ffff888273e21980
<4> [816.469006] FS:  0000000000000000(0000) GS:ffff888277b00000(0000)
knlGS:0000000000000000
<4> [816.469010] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [816.469014] CR2: 00007f3b888c9c38 CR3: 000000026a452000 CR4:
00000000003406e0
<4> [816.469018] Call Trace:
<4> [816.469100]  __i915_request_commit+0x245/0x510 [i915]
<4> [816.469179]  __engine_park+0x70/0x270 [i915]
<4> [816.469251]  ____intel_wakeref_put_last+0x1c/0x70 [i915]
<4> [816.469335]  i915_request_retire+0x418/0x840 [i915]
<4> [816.469420]  ring_retire_requests+0x47/0x50 [i915]
<4> [816.469503]  i915_retire_requests+0x57/0xc0 [i915]
<4> [816.469583]  retire_work_handler+0x27/0x60 [i915]
<4> [816.469593]  process_one_work+0x245/0x610
<4> [816.469608]  worker_thread+0x37/0x380
<4> [816.469618]  ? process_one_work+0x610/0x610
<4> [816.469623]  kthread+0x119/0x130
<4> [816.469629]  ? kthread_park+0xa0/0xa0
<4> [816.469640]  ret_from_fork+0x3a/0x50
<4> [816.469661] irq event stamp: 852414
<4> [816.469666] hardirqs last  enabled at (852413): [<ffffffff8112b537>]
console_unlock+0x3f7/0x5a0
<4> [816.469673] hardirqs last disabled at (852414): [<ffffffff810019ea>]
trace_hardirqs_off_thunk+0x1a/0x20
<4> [816.469679] softirqs last  enabled at (852148): [<ffffffff8129a057>]
wb_workfn+0x1a7/0x5f0
<4> [816.469683] softirqs last disabled at (852146): [<ffffffff81299f65>]
wb_workfn+0xb5/0x5f0
<4> [816.469689] WARNING: CPU: 2 PID: 1255 at lib/list_debug.c:25
__list_add_valid+0x36/0x70
<4> [816.469693] ---[ end trace c7c4c36d1f93c572 ]---

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