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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [IVB/HSW/BDW Bisected]igt/pm_rps subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83915">83915</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>[IVB/HSW/BDW Bisected]igt/pm_rps subcases fail
          </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>jinxianx.guo@intel.com
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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=106352" name="attach_106352" title="dmesg">attachment 106352</a> <a href="attachment.cgi?id=106352&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: Yes.
They are igt regression issue

Non-working platforms: IVB HSW BDW

==kernel==
--------------------------
origin/drm-intel-nightly:43df30da20447e2856b2761215ff274886a9f931(fails)
    drm-intel-nightly: 2014y-09m-12d-15h-35m-20s UTC integration manifest
origin/drm-intel-next-queued:648fb42d1e77cf90cddea2b1cf1f4ac4453e65e6(works)
    drm/i915: Extend BIOS stolen mem handling to all platform
origin/drm-intel-fixes: e76c8c5979021483a3a6b480cfe360c644a403c0(works)
    drm/i915: Fix SRC_COPY width on 830/845g
origin/drm-fixes: 83502a5d34386f7c6973bc70e1c423f55f5a2e3a(works)

==Bug detailed description==
-----------------------------
igt/pm_rps subcases reset and blocking fail

Output:
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rps
--run-subtest reset
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc4_drm-intel-nightly_43df30_20140916+ x86_64)
Test assertion failure function idle_check, file pm_rps.c:408:
Failed assertion: freqs[CUR] == freqs[MIN]
error: 900 != 100
Subtest reset: FAIL (49.044s)
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rps
--run-subtest blocking
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc4_drm-intel-nightly_43df30_20140916+ x86_64)
Test assertion failure function idle_check, file pm_rps.c:408:
Failed assertion: freqs[CUR] == freqs[MIN]
error: 900 != 100
Subtest blocking: FAIL (45.020s)

==Reproduce steps==
---------------------------- 
1. ./pm_rps --run-subtest reset

==Bisect results==
----------------------------
Bisect shows: 3a1751ef34c32c5d288a328d855bec49ad0eaf9f is the first bad commit
commit 3a1751ef34c32c5d288a328d855bec49ad0eaf9f
Author:     Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
AuthorDate: Fri Sep 12 06:46:28 2014 +0100
Commit:     Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
CommitDate: Fri Sep 12 06:47:20 2014 +0100

    igt/pm_rps: Fix the batch count for emitting the flush

    Bugzilla: <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [BYT/BDW/BSW Regression]igt/pm_rps some subcases fail and cause " [drm:i915_context_is_banned] *ERROR* gpu hanging too fast, banning!""
   href="show_bug.cgi?id=81858#c2">https://bugs.freedesktop.org/show_bug.cgi?id=81858#c2</a>
    Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>></pre>
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