[Bug 91981] New: GPU Stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91981

            Bug ID: 91981
           Summary: GPU Stuck on render ring
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: uovobw at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118217
  --> https://bugs.freedesktop.org/attachment.cgi?id=118217&action=edit
the three files in the bugreport

Hi, 
as specified in my dmesg after a strange couple second freeze - i was on google
with my browser - i was instructed by the dmesg to opena a new bug. Here is the
dmesg:

[419938.682791] [drm] stuck on render ring
[419938.683390] [drm] GPU HANG: ecode 7:0:0x85dffffd, in chromium [4662],
reason: Ring hung, action: reset
[419938.683391] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[419938.683392] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[419938.683392] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[419938.683393] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[419938.683393] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[419938.690770] drm/i915: Resetting chip after gpu hang

and attached you can find the file it told me to attach. The host is a santech
http://www.santech.eu/t55-series laptop, kernel version

Linux baol 4.0.0-1-amd64 #1 SMP Debian 4.0.2-1 (2015-05-11) x86_64 GNU/Linux

from the debian sid repos. Attached also is lshw and lspci/usb -v
Please tell me if i can help debug the issue.
thanks

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