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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [All regression] igt/ drv_module_reload doesn’t reload module"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=89742">89742</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[All regression] igt/ drv_module_reload doesn’t reload module
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>yex.tian@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=114576" name="attach_114576" title="dmesg info">attachment 114576</a> <a href="attachment.cgi?id=114576&action=edit" title="dmesg info">[details]</a></span>
dmesg info

==System Environment==      
-----------------------------------------------------
Regression: Yes, igt
Good commit: ebd8b32bc6f5046815e00a6bee7f7f6650591cce
Bad  commit: e7d26df4198af40c92292cb4209fd803fa02062f

Non-working platforms: all

==Kernel==
--------------------------------------------------
commit 26db3817223d120e791f36b6be1d52b1aece47c7
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date:   Mon Mar 23 10:36:14 2015 +0100

    drm-intel-nightly: 2015y-03m-23d-09h-35m-35s UTC integration manifest

==Bug detailed description==
-----------------------------
Module unloaded successfully, but it doesn't reload module.
It's igt regression. The return code is 0, and we reboot system after execute
this case. 
I know that there is a <a class="bz_bug_link 
          bz_status_VERIFIED  bz_closed"
   title="VERIFIED FIXED - [all Regression]igt/drv_module_reload doesn't reload module"
   href="show_bug.cgi?id=88573">bug 88573</a> about this issue.

Output:
[root@x-hsw24 tests]# ./drv_module_reload
unbinding /sys/class/vtconsole/vtcon0/: (M) frame buffer device
module successfully unloaded
failed to reload module successfully
[root@x-hsw24 tests]# echo $?
0
[root@x-hsw24 tests]# ./drv_module_reload
 i915 debugfs path not found.
Reproduce steps:
----------------------------
1, ./drv_module_reload</pre>
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