[Bug 105959] [CI] igt at kms_* - incomplete - softdog - backtrace in dmesg indicates: NULL deref in intel_psr_flush
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Jul 24 13:35:29 UTC 2018
https://bugs.freedesktop.org/show_bug.cgi?id=105959
Martin Peres <martin.peres at free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
i915 features|display/Other |display/PSR
i915 platform| |SKL
--- Comment #14 from Martin Peres <martin.peres at free.fr> ---
Also seen on SKL:
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_78/fi-skl-6700hq/igt@kms_busy@basic-modeset-b.html
<1>[ 83.275386] BUG: unable to handle kernel NULL pointer dereference at
0000000000000600
<6>[ 83.275394] PGD 0 P4D 0
<4>[ 83.275406] Oops: 0000 [#1] PREEMPT SMP PTI
<4>[ 83.275414] CPU: 3 PID: 129 Comm: kworker/3:1 Tainted: G U W
4.18.0-rc3-g7bc1be8128e3-drmtip_78+ #1
<4>[ 83.275419] Hardware name: TOSHIBA SATELLITE P50-C/06F4
, BIOS 1.40 03/29/2016
<4>[ 83.275487] Workqueue: events i915_clflush_work [i915]
<4>[ 83.275580] RIP: 0010:intel_psr_flush+0x4f/0x120 [i915]
<4>[ 83.275585] Code: f5 48 89 fb 31 f6 4c 89 e7 e8 7d 6a 62 f3 48 8b 83 68
a4 00 00 48 85 c0 0f 84 8b 00 00 00 48 8b 80 48 ff ff ff be 01 00 00 00 <48> 63
90 00 06 00 00 48 c7 c0 ff ff ff ff 8d 0c d5 00 00 00 00 48
<4>[ 83.275709] RSP: 0018:ffffa5f2003cfdf0 EFLAGS: 00010282
<4>[ 83.275716] RAX: 0000000000000000 RBX: ffff959768e80000 RCX:
0000000000000001
<4>[ 83.275721] RDX: 0000000080000001 RSI: 0000000000000001 RDI:
0000000000000000
<4>[ 83.275727] RBP: 0000000000000100 R08: 0000000021bcca6d R09:
0000000000000000
<4>[ 83.275732] R10: ffffa5f2003cfdf0 R11: ffff959768e8a440 R12:
ffff959768e8a3e0
<4>[ 83.275737] R13: 0000000000000100 R14: 0000000000000001 R15:
0000000000000000
<4>[ 83.275743] FS: 0000000000000000(0000) GS:ffff959781cc0000(0000)
knlGS:0000000000000000
<4>[ 83.275748] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 83.275754] CR2: 0000000000000600 CR3: 0000000147210004 CR4:
00000000003606e0
<4>[ 83.275759] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
<4>[ 83.275764] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
<4>[ 83.275768] Call Trace:
<4>[ 83.275862] intel_frontbuffer_flush+0x6a/0x80 [i915]
<4>[ 83.275934] i915_clflush_work+0x73/0x1b0 [i915]
<4>[ 83.275945] process_one_work+0x248/0x6c0
<4>[ 83.275957] worker_thread+0x37/0x380
<4>[ 83.275965] ? process_one_work+0x6c0/0x6c0
<4>[ 83.275973] kthread+0x119/0x130
<4>[ 83.275981] ? kthread_flush_work_fn+0x10/0x10
<4>[ 83.275990] ret_from_fork+0x3a/0x50
<4>[ 83.276002] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_generic
i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul
crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec snd_hwdep
snd_hda_core snd_pcm mei_me r8169 mei mii prime_numbers
<0>[ 83.315412] ---------------------------------
<4>[ 83.315414] CR2: 0000000000000600
<4>[ 83.315417] ---[ end trace d699399803d6cb6f ]---
<4>[ 83.657100] RIP: 0010:intel_psr_flush+0x4f/0x120 [i915]
<4>[ 83.657105] Code: f5 48 89 fb 31 f6 4c 89 e7 e8 7d 6a 62 f3 48 8b 83 68
a4 00 00 48 85 c0 0f 84 8b 00 00 00 48 8b 80 48 ff ff ff be 01 00 00 00 <48> 63
90 00 06 00 00 48 c7 c0 ff ff ff ff 8d 0c d5 00 00 00 00 48
<4>[ 83.657154] RSP: 0018:ffffa5f2003cfdf0 EFLAGS: 00010282
<4>[ 83.657157] RAX: 0000000000000000 RBX: ffff959768e80000 RCX:
0000000000000001
<4>[ 83.657159] RDX: 0000000080000001 RSI: 0000000000000001 RDI:
0000000000000000
<4>[ 83.657161] RBP: 0000000000000100 R08: 0000000021bcca6d R09:
0000000000000000
<4>[ 83.657163] R10: ffffa5f2003cfdf0 R11: ffff959768e8a440 R12:
ffff959768e8a3e0
<4>[ 83.657165] R13: 0000000000000100 R14: 0000000000000001 R15:
0000000000000000
<4>[ 83.657167] FS: 0000000000000000(0000) GS:ffff959781cc0000(0000)
knlGS:0000000000000000
<4>[ 83.657169] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 83.657171] CR2: 0000000000000600 CR3: 0000000268d52006 CR4:
00000000003606e0
<4>[ 83.657173] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
<4>[ 83.657175] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
<3>[ 83.657178] BUG: sleeping function called from invalid context at
./include/linux/percpu-rwsem.h:34
<3>[ 83.657180] in_atomic(): 0, irqs_disabled(): 1, pid: 129, name:
kworker/3:1
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