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      <base href="https://bugs.freedesktop.org/" />
    </head>
    <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 --- - GPU hang and render error detected"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=80733">80733</a>
          </td>
        </tr>

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

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

        <tr>
          <th>Summary</th>
          <td>GPU hang and render error detected
          </td>
        </tr>

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

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

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

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

        <tr>
          <th>Reporter</th>
          <td>scampa.giovanni@gmail.com
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>XOrg CVS
          </td>
        </tr>

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

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=102033" name="attach_102033" title="Full core dump">attachment 102033</a> <a href="attachment.cgi?id=102033&action=edit" title="Full core dump">[details]</a></span>
Full core dump

I found this on the logs, I honestly don't know what the error could be.

giu 30 22:48:25 giovanni-laptop kernel: [drm] GPU crash dump saved to
/sys/class/drm/card0/error
giu 30 22:48:25 giovanni-laptop kernel: [drm] GPU hangs can indicate a bug
anywhere in the entire gfx stack, including userspace.
giu 30 22:48:25 giovanni-laptop kernel: [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
giu 30 22:48:25 giovanni-laptop kernel: [drm] drm/i915 developers can then
reassign to the right component if it's not a kernel issue.
giu 30 22:48:25 giovanni-laptop kernel: [drm] The gpu crash dump is required to
analyze gpu hangs, so please always attach it.
giu 30 22:48:26 giovanni-laptop kernel: i915: render error detected, EIR:
0x00000010
giu 30 22:48:26 giovanni-laptop kernel: i915:   IPEIR: 0x00000000
giu 30 22:48:26 giovanni-laptop kernel: i915:   IPEHR: 0x79010003
giu 30 22:48:26 giovanni-laptop kernel: i915:   INSTDONE_0: 0x808c816f
giu 30 22:48:26 giovanni-laptop kernel: i915:   INSTDONE_1: 0x9b35d10e
giu 30 22:48:26 giovanni-laptop kernel: i915:   INSTDONE_2: 0x00000000
giu 30 22:48:26 giovanni-laptop kernel: i915:   INSTDONE_3: 0x00000000
giu 30 22:48:26 giovanni-laptop kernel: i915:   INSTPS: 0x8001e022
giu 30 22:48:26 giovanni-laptop kernel: i915:   ACTHD: 0x0ef96318
giu 30 22:48:26 giovanni-laptop kernel: i915: page table error
giu 30 22:48:26 giovanni-laptop kernel: i915:   PGTBL_ER: 0x00000001
giu 30 22:48:26 giovanni-laptop kernel: [drm:i915_report_and_clear_eir] *ERROR*
EIR stuck: 0x00000010, masking

It happened while loading a VM in gnome-boxes. Besides some glitches in the VM,
no visual artifact was noticed, in particular no glitch in the outer desktop
(the VM was not fullscreen).

The VM is a Fedora Rawhide, using the qxl driver (in case it matters).
gnome-boxes was built from jhbuild, using mesa
7577cdd8300068bdf1eda426951d7141450283aa (+ my DRM-swrast patches, but they are
not in the rawhide VM and they don't touch GLX or the intel driver, so they
shouldn't matter here) and e8c3c1358ecaf4e90f7d43762357ae6f8e2022b6

The outer X was xorg-x11-server-Xorg-1.14.4-9.fc20.x86_64 (Fedora 20) +
xorg-x11-drv-intel-2.21.15-5.fc20.x86_64, with SNA enabled. Kernel is
3.14.6-200.fc20.x86_64.

This is a GM45 card.</pre>
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