[Bug 80176] New: [HSW Regression]igt/drv_module_reload fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80176

          Priority: high
            Bug ID: 80176
          Keywords: bisect_pending
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW Regression]igt/drv_module_reload fails
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 101281
  --> https://bugs.freedesktop.org/attachment.cgi?id=101281&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes. 
Good commit on -fixes: e4c610fe051579ba0a1fadf339905b0231c6ef94

Non-working platforms: HSW

==kernel==
--------------------------
origin/drm-intel-nightly: fff6c5111af7356d3815521f597959554e7bc1cc(fails)
    drm-intel-nightly: 2014y-06m-18d-00h-49m-52s integration manifest
origin/drm-intel-next-queued: 27b6c122512ca30399bb1b39cc42eda83901f304(works)
    drm/i915/chv: Ack interrupts before handling them (CHV)
origin/drm-intel-fixes: 223a6f2b975ab35d93270ea1d4fb6e0ac6b27fe6(fails)
    drm/i915/bdw: remove erroneous chv specific workarounds from bdw code

==Bug detailed description==
-----------------------------
igt/kms_pipe_crc_basic causes "WARNING: CPU: 3 PID: 4309 at
drivers/gpu/drm/i915/intel_pm.c:6174 check_power_well_state+0x69/0x6f [i915]()"
sporadically


Output:
[root at x-hsw27 tests]# ./drv_module_reload
rmmod: ERROR: Module i915 is in use
WARNING: i915.ko still loaded!
module successfully loaded again

==Reproduce steps==
---------------------------- 
1. ./drv_module_reload

-- 
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/20140618/f36ef644/attachment.html>