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    <head>
      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [ILK bisected] “Call Trace” when run GLbenchmark v2.7.0 TRex_FixedTimeStep_Offscreen"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67156">67156</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[ILK bisected] “Call Trace” when run GLbenchmark v2.7.0 TRex_FixedTimeStep_Offscreen
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mengmeng.meng@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

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

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>System Environment:       
----------------------------------------------
Platform: Ironlake
Libdrm:      (master)libdrm-2.4.46-2-gfea5408098c3c3057958e85ea9d7146f0b08749e
Mesa:     (master)cd90ebefd4f63d00eb65af6069fb078e454c43f1
Xserver:  (master)xorg-server-1.14.99.1-137-g74469895e39fa38337f59e
Xf86_video_intel: (master)2.21.12-36-g2c78403cb56841f342692b97bb53e995c
Kernel:      (drm-intel-next-queued) 7984211ee8e1fa03cd4bc9ef3d347f94f8a2c8a8

Bug detailed description:
----------------------------------------------
“Call Trace” when run GLbenchmark v2.7.0 TRex_FixedTimeStep_Offscreen on
Ironlake. If the problem appears, the game would park in a frame and X can’t be
restarted.The problem exists on X raw and gnome-session. Please see dmesg and
Xorg.0.log attached.
It’s kernel drm-intel-next-queued regression, bisecting show the first bad
commit is that:
commit 2f63315692b1d3c055972ad33fc7168ae908b97b
Author: Ben Widawsky <<a href="mailto:ben@bwidawsk.net">ben@bwidawsk.net</a>>
Date:   Wed Jul 17 12:19:03 2013 -0700
    drm/i915: Create VMAs
    Formerly: "drm/i915: Create VMAs (part 1)"

Call Trace:
----------------
[   84.645970]  [<ffffffffa00998d7>] ? i915_gem_object_pin+0x453/0x4de [i915]
[   84.646002]  [<ffffffffa0099dfe>] ? i915_gem_pwrite_ioctl+0x1c6/0x793 [i915]
[   84.646034]  [<ffffffffa0099b7f>] ? i915_gem_fault+0x105/0x1be [i915]
[   84.646061]  [<ffffffff810ae42d>] ? __do_fault+0xac/0x3bb
[   84.646090]  [<ffffffffa009857a>] ? i915_gem_set_domain_ioctl+0x19c/0x1b4
[i915]
[   84.646122]  [<ffffffffa002d4e7>] ? drm_ioctl+0x2b7/0x3c0 [drm]
[   84.646150]  [<ffffffffa0099c38>] ? i915_gem_fault+0x1be/0x1be [i915]
[   84.646180]  [<ffffffff816f4a94>] ? __do_page_fault+0x3a4/0x3ed
[   84.646204]  [<ffffffff810dd818>] ? do_vfs_ioctl+0x43b/0x47c
[   84.646227]  [<ffffffff810dd8ae>] ? SyS_ioctl+0x55/0x7b
[   84.646248]  [<ffffffff816f6dd2>] ? system_call_fastpath+0x16/0x1b
[   84.646276] Code: 8b 77 10 49 bb 00 01 10 00 00 00 ad de 48 89 4e 08 48 89
31 48 b9 00 02 20 00 00 00 ad de 4c 89 5f 10 48 89 4f 18 eb 0b 4c 01 c6 <48> 3b
71 30 74 02 0f 0b 40 8a 70 20 48 8d 48 10 40 f6 c6 01 75
[   84.646408] RIP  [<ffffffffa0035aa3>] drm_mm_remove_node+0x5d/0xcb [drm]
[   84.646439]  RSP <ffff880110141c30>
[   84.646452] CR2: 0000000000000030
[   84.653209] ---[ end trace aa4e1b7cfd37f4b0 ]---

Reproduce steps:
---------------------------------------------
1. xinit&
2. run GLbenchmark v2.7.0 TRex_FixedTimeStep_Offscreen
vblank_mode=0 ./GLBenchmark -data ../../data/ -t 2700801</pre>
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