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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>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [HSW]igt/pm_rps some subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83966">83966</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>[HSW]igt/pm_rps some 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=106411" name="attach_106411" title="dmesg">attachment 106411</a> <a href="attachment.cgi?id=106411&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: Not sure.
I can not find good commit on both kernel and igt, here has a similar <a class="bz_bug_link 
          bz_status_VERIFIED  bz_closed"
   title="VERIFIED FIXED - [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">bug 81858</a>
before on other platform.

Non-working platforms: HSW

==kernel==
--------------------------
origin/drm-intel-nightly:ab7f1ab9c4d1c8af46517d60e54eeda9d8673f6a(fails)
    drm-intel-nightly: 2014y-09m-16d-09h-02m-41s UTC integration manifest
origin/drm-intel-next-queued:889dc7e960acde076491806d27e068b391c4a47a(fails)
    drm/i915: Use EIO instead of EAGAIN for sink CRC error.
origin/drm-intel-fixes: d72985765e986f45a28f87d75f3f0ece489b04cc(fails)
    drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv


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

Output:
[root@x-hsw24 tests]# ./pm_rps --run-subtest blocking
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64)
Test assertion failure function emit_store_dword_imm, file pm_rps.c:193:
Failed assertion: batch->ptr == batch->end
Subtest blocking: FAIL (10.001s)
Test assertion failure function load_helper_stop, file pm_rps.c:254:
Failed assertion: igt_wait_helper(&lh.igt_proc) == 0
Subtest blocking: FAIL (20.014s)
[root@x-hsw24 tests]# ./pm_rps --run-subtest reset
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64)
Test assertion failure function emit_store_dword_imm, file pm_rps.c:193:
Failed assertion: batch->ptr == batch->end
Subtest reset: FAIL (10.001s)


^CTest assertion failure function load_helper_stop, file pm_rps.c:254:
Failed assertion: igt_wait_helper(&lh.igt_proc) == 0
Last errno: 10, No child processes
Subtest reset: FAIL (5686.556s)
pm_rps: igt_core.c:907: fork_helper_exit_handler: Assertion
`helper_process_count == 0' failed.
Aborted (core dumped)

==Reproduce steps==
---------------------------- 
1. ./pm_rps --run-subtest reset</pre>
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