[Bug 105185] [CI] igt at kms_* - dmesg-warn - WARNING: CPU: 4 PID: 1734 at drivers/gpu/drm/drm_vblank.c:614 drm_calc_vbltimestamp_from_scanoutpos+0x13e/0x2f0

Wed Feb 28 06:53:57 UTC 2018

https://bugs.freedesktop.org/show_bug.cgi?id=105185

--- Comment #11 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3839/shard-glkb2/igt@kms_plane_lowres@pipe-b-tiling-x.html
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4305/shard-glkb3/igt@kms_plane_lowres@pipe-b-tiling-y.html
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4306/shard-glkb2/igt@kms_plane_lowres@pipe-c-tiling-y.html

<7>[  184.654188] [drm:intel_disable_pipe [i915]] disabling pipe C
<4>[  184.654297] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/drm_vblank.c:614
drm_calc_vbltimestamp_from_scanoutpos+0x13e/0x2f0
<4>[  184.654377] Modules linked in: vgem snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal
intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core mei_me
r8169 snd_pcm mei mii prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<4>[  184.654535] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G     U          
4.16.0-rc2-CI-CI_DRM_3838+ #1
<4>[  184.654542] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07),
BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[  184.654553] RIP: 0010:drm_calc_vbltimestamp_from_scanoutpos+0x13e/0x2f0
<4>[  184.654560] RSP: 0018:ffff88017fc83d38 EFLAGS: 00010086
<4>[  184.654572] RAX: ffffffffa0241d20 RBX: ffff880169400000 RCX:
0000000000000002
<4>[  184.654579] RDX: ffffffff820e7e80 RSI: 0000000000000001 RDI:
ffffffff82068da2
<4>[  184.654585] RBP: ffff88017fc83d98 R08: 0000000000000000 R09:
ffffffff815d2780
<4>[  184.654592] R10: 0000000000000000 R11: ffffffffa0111ca0 R12:
0000000000000002
<4>[  184.654601] R13: ffff8801639e2548 R14: ffff8801639e2a78 R15:
0000000000000000
<4>[  184.654608] FS:  0000000000000000(0000) GS:ffff88017fc80000(0000)
knlGS:0000000000000000
<4>[  184.654616] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[  184.654622] CR2: 00007fd24f436000 CR3: 0000000005210000 CR4:
0000000000340ee0
<4>[  184.654633] Call Trace:
<4>[  184.654645]  <IRQ>
<4>[  184.654675]  drm_get_last_vbltimestamp+0x36/0x50
<4>[  184.654690]  drm_update_vblank_count+0x64/0x240
<4>[  184.654713]  drm_crtc_accurate_vblank_count+0x41/0x90
<4>[  184.654816]  display_pipe_crc_irq_handler+0x176/0x220 [i915]
<4>[  184.654927]  hsw_pipe_crc_irq_handler+0x46/0x50 [i915]
<4>[  184.655030]  gen8_irq_handler+0x389/0x630 [i915]
<4>[  184.655057]  __handle_irq_event_percpu+0x3c/0x340
<4>[  184.655075]  handle_irq_event_percpu+0x1b/0x50
<4>[  184.655087]  handle_irq_event+0x2f/0x50
<4>[  184.655100]  handle_edge_irq+0xe4/0x1b0
<4>[  184.655114]  handle_irq+0x11/0x20
<4>[  184.655123]  do_IRQ+0x5e/0x120
<4>[  184.655143]  common_interrupt+0x84/0x84
<4>[  184.655152]  </IRQ>
<4>[  184.655161] RIP: 0010:cpuidle_enter_state+0xaa/0x350
<4>[  184.655168] RSP: 0018:ffffc900000c3eb8 EFLAGS: 00000212 ORIG_RAX:
ffffffffffffffdc
<4>[  184.655181] RAX: ffff88017a948040 RBX: 0000000000f9fddc RCX:
0000000000000001
<4>[  184.655187] RDX: 0000000000000000 RSI: ffffffff8210fc21 RDI:
ffffffff820c0397
<4>[  184.655193] RBP: 0000000000000007 R08: 0000000000002878 R09:
0000000000000018
<4>[  184.655199] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000007
<4>[  184.655206] R13: ffff88017fcab650 R14: 0000002afd4466dc R15:
ffffffff82294460
<4>[  184.655241]  ? cpuidle_enter_state+0xa6/0x350
<4>[  184.655259]  do_idle+0x188/0x1d0
<4>[  184.655279]  cpu_startup_entry+0x14/0x20
<4>[  184.655289]  start_secondary+0x129/0x160
<4>[  184.655301]  secondary_startup_64+0xa5/0xb0
<4>[  184.655334] Code: e1 48 c7 c2 80 7e 0e 82 be 01 00 00 00 48 c7 c7 a2 8d
06 82 e8 64 ec ff ff 48 8b 83 c8 07 00 00 48 83 78 28 00 0f 84 e2 fe ff ff <0f>
0b 45 31 ed e9 db fe ff ff 41 b8 d3 4d 62 10 89 c8 6a 03 41 
<4>[  184.655700] ---[ end trace 3a2be6cee118eef3 ]---

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