<html>
    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BAT][PNV] pipe [AB] vblank wait timed out"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101597">101597</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BAT][PNV] pipe [AB] vblank wait timed out
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>DRI git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>martin.peres@free.fr
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Starting from CI_DRM_2765, the igt@kms_pipe_crc_basic@hang-read-crc-pipe-a/b
tests started being run on fi-pnv-d510.

The pipe b always gives the following warning:
[  490.402413] Setting dangerous option reset - tainting kernel
[  491.525783] drm/i915: Resetting chip after gpu hang
[  492.097964] pipe B vblank wait timed out
[  492.098046] ------------[ cut here ]------------
[  492.098203] WARNING: CPU: 0 PID: 3536 at
drivers/gpu/drm/i915/intel_display.c:12851 intel_atomic_commit_tail+0xf4e/0xf70
[i915]
[  492.098210] Modules linked in: vgem i915 coretemp snd_hda_codec_realtek
snd_hda_codec_generic snd_hda_intel snd_hda_codec lpc_ich snd_hwdep r8169
snd_hda_core mii snd_pcm prime_numbers
[  492.098299] CPU: 0 PID: 3536 Comm: kms_pipe_crc_ba Tainted: G     U  W      
4.12.0-rc7-CI-CI_DRM_2770+ #1
[  492.098307] Hardware name:                  /D510MO, BIOS
MOPNV10J.86A.0311.2010.0802.2346 08/02/2010
[  492.098314] task: ffff880015b8cbc0 task.stack: ffffc90000cdc000
[  492.098452] RIP: 0010:intel_atomic_commit_tail+0xf4e/0xf70 [i915]
[  492.098462] RSP: 0018:ffffc90000cdfac8 EFLAGS: 00010292
[  492.098475] RAX: 000000000000001c RBX: 0000000000000001 RCX:
0000000000000006
[  492.098482] RDX: 0000000000000006 RSI: ffffffff81cba139 RDI:
ffffffff81c9984f
[  492.098488] RBP: ffffc90000cdfb70 R08: 0000000000000000 R09:
0000000000000001
[  492.098494] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff88001a3b8000
[  492.098501] R13: 0000000000000218 R14: 0000000000000004 R15:
0000000000000002
[  492.098508] FS:  00007f75d4c39a40(0000) GS:ffff88001ec00000(0000)
knlGS:0000000000000000
[  492.098515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  492.098522] CR2: 00007f75cfd88000 CR3: 000000000dfc8000 CR4:
00000000000006f0
[  492.098529] Call Trace:
[  492.098562]  ? wake_atomic_t_function+0x30/0x30
[  492.098712]  intel_atomic_commit+0x3fb/0x500 [i915]
[  492.098732]  ? drm_atomic_check_only+0x3d0/0x560
[  492.098745]  ? drm_connector_list_iter_end+0x2f/0x40
[  492.098759]  ? handle_conflicting_encoders+0x270/0x290
[  492.098776]  drm_atomic_commit+0x46/0x50
[  492.098791]  drm_atomic_helper_set_config+0x68/0x90
[  492.098807]  __drm_mode_set_config_internal+0x60/0x110
[  492.098823]  drm_mode_setcrtc+0x3e9/0x5f0
[  492.098956]  drm_ioctl+0x202/0x490
[  492.098968]  ? drm_mode_getcrtc+0x180/0x180
[  492.099007]  ? __this_cpu_preempt_check+0x13/0x20
[  492.099026]  do_vfs_ioctl+0x90/0x6d0
[  492.099040]  ? entry_SYSCALL_64_fastpath+0x5/0xb1
[  492.099054]  ? __this_cpu_preempt_check+0x13/0x20
[  492.099069]  ? trace_hardirqs_on_caller+0xe7/0x1c0
[  492.099087]  SyS_ioctl+0x3c/0x70
[  492.099107]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[  492.099117] RIP: 0033:0x7f75d313d357
[  492.099125] RSP: 002b:00007ffc465d6bd8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[  492.099137] RAX: ffffffffffffffda RBX: ffffffff81470333 RCX:
00007f75d313d357
[  492.099144] RDX: 00007ffc465d6c10 RSI: 00000000c06864a2 RDI:
0000000000000003
[  492.099150] RBP: ffffc90000cdff88 R08: 0000000000000000 R09:
00000000020372b8
[  492.099157] R10: 00000000020372d8 R11: 0000000000000246 R12:
0000000002036d18
[  492.099163] R13: 0000000000000003 R14: 00000000c06864a2 R15:
0000000000000003
[  492.099181]  ? __this_cpu_preempt_check+0x13/0x20
[  492.099207] Code: ff ff ff 48 83 c7 08 e8 01 c6 f5 e0 4c 8b 85 78 ff ff ff
4d 85 c0 0f 85 d4 fd ff ff 8d 73 41 48 c7 c7 50 02 24 a0 e8 6b 99 00 e1 <0f> ff
e9 be fd ff ff 8d 70 41 48 c7 c7 20 02 24 a0 e8 55 99 00 
[  492.099547] ---[ end trace ffde64c737a3f6b0 ]---

The pipe A sometimes throws the following warning:
[  487.226361] drm/i915: Resetting chip after gpu hang
[  487.783046] pipe A vblank wait timed out
[  487.783119] ------------[ cut here ]------------
[  487.783253] WARNING: CPU: 3 PID: 3530 at
drivers/gpu/drm/i915/intel_display.c:12851 intel_atomic_commit_tail+0xf4e/0xf70
[i915]
[  487.783259] Modules linked in: vgem i915 coretemp snd_hda_codec_realtek
snd_hda_codec_generic snd_hda_intel snd_hda_codec lpc_ich snd_hwdep r8169
snd_hda_core mii snd_pcm prime_numbers
[  487.783329] CPU: 3 PID: 3530 Comm: kms_pipe_crc_ba Tainted: G     U         
4.12.0-rc7-CI-CI_DRM_2770+ #1
[  487.783334] Hardware name:                  /D510MO, BIOS
MOPNV10J.86A.0311.2010.0802.2346 08/02/2010
[  487.783340] task: ffff88001e6ea600 task.stack: ffffc90000cd4000
[  487.783457] RIP: 0010:intel_atomic_commit_tail+0xf4e/0xf70 [i915]
[  487.783463] RSP: 0018:ffffc90000cd7ac8 EFLAGS: 00010292
[  487.783472] RAX: 000000000000001c RBX: 0000000000000000 RCX:
0000000000000006
[  487.783478] RDX: 0000000000000006 RSI: ffffffff81cba139 RDI:
ffffffff81c9984f
[  487.783483] RBP: ffffc90000cd7b70 R08: 0000000000000000 R09:
0000000000000001
[  487.783488] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff88001a3b8000
[  487.783492] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000001
[  487.783499] FS:  00007fb889686a40(0000) GS:ffff88001ed80000(0000)
knlGS:0000000000000000
[  487.783504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  487.783509] CR2: 00007fb8847d5000 CR3: 0000000007997000 CR4:
00000000000006e0
[  487.783514] Call Trace:
[  487.783542]  ? wake_atomic_t_function+0x30/0x30
[  487.783666]  intel_atomic_commit+0x3fb/0x500 [i915]
[  487.783681]  ? drm_atomic_check_only+0x3d0/0x560
[  487.783691]  ? drm_connector_list_iter_end+0x2f/0x40
[  487.783701]  ? handle_conflicting_encoders+0x270/0x290
[  487.783714]  drm_atomic_commit+0x46/0x50
[  487.783724]  drm_atomic_helper_set_config+0x68/0x90
[  487.783736]  __drm_mode_set_config_internal+0x60/0x110
[  487.783747]  drm_mode_setcrtc+0x3e9/0x5f0
[  487.783789]  drm_ioctl+0x202/0x490
[  487.783796]  ? drm_mode_getcrtc+0x180/0x180
[  487.783824]  ? __this_cpu_preempt_check+0x13/0x20
[  487.783837]  do_vfs_ioctl+0x90/0x6d0
[  487.783848]  ? entry_SYSCALL_64_fastpath+0x5/0xb1
[  487.783858]  ? __this_cpu_preempt_check+0x13/0x20
[  487.783867]  ? trace_hardirqs_on_caller+0xe7/0x1c0
[  487.783880]  SyS_ioctl+0x3c/0x70
[  487.783894]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[  487.783981] RIP: 0033:0x7fb887b8a357
[  487.783987] RSP: 002b:00007ffd201881d8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[  487.783997] RAX: ffffffffffffffda RBX: ffffffff81470333 RCX:
00007fb887b8a357
[  487.784003] RDX: 00007ffd20188210 RSI: 00000000c06864a2 RDI:
0000000000000003
[  487.784008] RBP: ffffc90000cd7f88 R08: 0000000000000000 R09:
00000000011fe2b8
[  487.784013] R10: 00000000011fe2d8 R11: 0000000000000246 R12:
00000000011fdc70
[  487.784018] R13: 0000000000000003 R14: 00000000c06864a2 R15:
0000000000000003
[  487.784032]  ? __this_cpu_preempt_check+0x13/0x20
[  487.784050] Code: ff ff ff 48 83 c7 08 e8 01 c6 f5 e0 4c 8b 85 78 ff ff ff
4d 85 c0 0f 85 d4 fd ff ff 8d 73 41 48 c7 c7 50 02 24 a0 e8 6b 99 00 e1 <0f> ff
e9 be fd ff ff 8d 70 41 48 c7 c7 20 02 24 a0 e8 55 99 00 
[  487.784319] ---[ end trace ffde64c737a3f6af ]---

Full logs:
 - Pipe A:
<a href="https://intel-gfx-ci.01.org/CI/CI_DRM_2770/fi-pnv-d510/igt@kms_pipe_crc_basic@hang-read-crc-pipe-a.html">https://intel-gfx-ci.01.org/CI/CI_DRM_2770/fi-pnv-d510/igt@kms_pipe_crc_basic@hang-read-crc-pipe-a.html</a>
 - Pipe B:
<a href="https://intel-gfx-ci.01.org/CI/CI_DRM_2770/fi-pnv-d510/igt@kms_pipe_crc_basic@hang-read-crc-pipe-b.html">https://intel-gfx-ci.01.org/CI/CI_DRM_2770/fi-pnv-d510/igt@kms_pipe_crc_basic@hang-read-crc-pipe-b.html</a></pre>
        </div>
      </p>


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