[Bug 101002] New: [BAT][ELK] Warning in drm_calc_vbltimestamp_from_scanoutpos caught in CI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101002

            Bug ID: 101002
           Summary: [BAT][ELK] Warning in
                    drm_calc_vbltimestamp_from_scanoutpos caught in CI
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

When running igt at kms_pipe_crc_basic@nonblocking-crc-pipe-b on CI_DRM_2604, the
machine fi-elk-e7500 generated the following warning:

[  389.934004] ------------[ cut here ]------------
[  389.934004] WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/drm_irq.c:780
drm_calc_vbltimestamp_from_scanoutpos+0x16e/0x310
[  389.934004] Modules linked in: vgem i915 snd_hda_codec_realtek
snd_hda_codec_generic coretemp snd_hda_intel snd_hda_codec snd_hwdep
snd_hda_core snd_pcm lpc_ich e1000e ptp prime_numbers mei_me pps_core mei
[  389.934004] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G     U  W      
4.11.0-CI-CI_DRM_2604+ #1
[  389.934004] Hardware name: Hewlett-Packard HP Compaq 8000 Elite CMT
PC/3647h, BIOS 786G7 v01.02 10/22/2009
[  389.934004] Call Trace:
[  389.934004]  <IRQ>
[  389.934004]  dump_stack+0x67/0x92
[  389.934004]  __warn+0xc6/0xe0
[  389.934004]  warn_slowpath_null+0x18/0x20
[  389.934004]  drm_calc_vbltimestamp_from_scanoutpos+0x16e/0x310
[  389.934004]  ? gen2_read32+0x73/0x200 [i915]
[  389.934004]  drm_get_last_vbltimestamp+0x3a/0x60
[  389.934004]  drm_update_vblank_count+0x62/0x290
[  389.934004]  drm_accurate_vblank_count+0x3f/0x80
[  389.934004]  display_pipe_crc_irq_handler+0x16d/0x210 [i915]
[  389.934004]  i9xx_pipe_crc_irq_handler+0xda/0x160 [i915]
[  389.934004]  i965_irq_handler+0x20a/0x2f0 [i915]
[  389.934004]  __handle_irq_event_percpu+0x58/0x370
[  389.934004]  handle_irq_event_percpu+0x1e/0x50
[  389.934004]  handle_irq_event+0x34/0x60
[  389.934004]  handle_edge_irq+0xbe/0x150
[  389.934004]  handle_irq+0x15/0x20
[  389.934004]  do_IRQ+0x63/0x130
[  389.934004]  common_interrupt+0x90/0x90
[  389.934004] RIP: 0010:cpuidle_enter_state+0x135/0x380
[  389.934004] RSP: 0018:ffffffff81e03de8 EFLAGS: 00000246 ORIG_RAX:
ffffffffffffffac
[  389.934004] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000000
[  389.934004] RDX: 0000005ac9dfc3da RSI: ffffffff81c7891d RDI:
ffffffff81706b31
[  389.934004] RBP: ffffffff81e03e20 R08: ffff88011bc170c4 R09:
0000000000000007
[  389.934004] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000001
[  389.934004] R13: ffff8801151dda88 R14: ffffffff81ec9f58 R15:
0000005ac9dfc3da
[  389.934004]  </IRQ>
[  389.934004]  ? cpuidle_enter_state+0x131/0x380
[  389.934004]  ? cpuidle_enter_state+0x131/0x380
[  389.934004]  cpuidle_enter+0x12/0x20
[  389.934004]  call_cpuidle+0x1e/0x40
[  389.934004]  do_idle+0x17e/0x1f0
[  389.934004]  cpu_startup_entry+0x18/0x20
[  389.934004]  rest_init+0x127/0x130
[  389.934004]  start_kernel+0x3f1/0x3fe
[  389.934004]  x86_64_start_reservations+0x2a/0x2c
[  389.934004]  x86_64_start_kernel+0x173/0x186
[  389.934004]  start_cpu+0x14/0x14
[  389.934004]  ? start_cpu+0x14/0x14
[  389.934004] ---[ end trace 10eb07f9d4184c48 ]---

Full logs:
https://intel-gfx-ci.01.org/CI/CI_DRM_2604/fi-elk-e7500/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-b.html

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20170511/6bceced0/attachment.html>