[Bug 86271] New: System hang playing video with XBMC/unable to handle kernel NULL pointer

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=86271

            Bug ID: 86271
           Summary: System hang playing video with XBMC/unable to handle
                    kernel NULL pointer
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.16.5
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: da_audiophile at yahoo.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 153761
  --> https://bugzilla.kernel.org/attachment.cgi?id=153761&action=edit
dmesg after GUI freezes up

Several times per week, attempting to play a video through XBMC causes the
entire X session to freeze upon starting the playback.  The last known state of
the GUI is frozen on the screen with no evidence of video playback.

The bug is inconsistent to trigger in that there is not a particular video file
that causes crash.  Rather, it seems to happen randomly.  After the crash,
connecting via ssh is possible, but the system will not go down on its own. 
The only way to recover is to reset the machine via the hardware switch.

Attached is the entire dmesg output.  The crash started at 19817.84 with the
line, "BUG: unable to handle kernel NULL pointer dereference at
0000000000000008."  I am glad to provide additional details upon request.

CPU: Intel Haswell i3-4130T.
Motherboard: MSI MS-7851/H97I AC running current BIOS (V5.4).

Xorg and video drivers (official Arch packages):
xorg-server 1.16.1-1
xf86-video-intel 2.99.916-3
libva-intel-driver 1.4.0-1
mesa-dri 10.3.1-1

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