[Bug 71725] New: [IVB Regression]boot system has <3>[ 0.753474] [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71725

          Priority: high
            Bug ID: 71725
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [IVB Regression]boot system has <3>[    0.753474]
                    [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out
                    waiting for forcewake old ack to clear.
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 89386
  --> https://bugs.freedesktop.org/attachment.cgi?id=89386&action=edit
dmesg

System Environment:
--------------------------
Platform:  Ivybridge
Kernel: (drm-intel-fixes)29c78f609e661e663a239a37923adb1d61f6386c

Bug detailed description:
-----------------------------
Boot system, <3>[    0.753474] [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed
out waiting for forcewake old ack to clear. appears in mdesg.
It happens on ivybridge with -nightly and -fixes kernel. It doesn't happen on
-queued kernel.

The latest known good commit:1fbc0d789d12fec313c91912fc11733fdfbab863
The latest known bad commit:29c78f609e661e663a239a37923adb1d61f6386c

Reproduce steps:
----------------------------
1. clear boot system
2. dmesg -r | egrep "<[1-3]>" |grep drm

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20131118/e990aca3/attachment.html>