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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=88573">88573</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>huax.lu@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>
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        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=112448" name="attach_112448" title="dmesg">attachment 112448</a> <a href="attachment.cgi?id=112448&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: Yes,igt
good commit: 329f7a3734331cb57895a675d4fc87c261f338bd
bad commit: 20d6e0f41b3b70a89946e5271bc4ffa7695be1b0

Non-working platforms: all

==kernel==
--------------------------
2015_01_05/drm-intel-nightly/07d0c831d9207c937595f081c8fddbddbf53756f
commit 07d0c831d9207c937595f081c8fddbddbf53756f
Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
Date:   Tue Dec 30 15:02:01 2014 +0200

    drm-intel-nightly: 2014y-12m-30d-13h-01m-34s 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. So we didn't catch this issue, until I retest <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [all Bisected]igt/drv_module_reload causes major memory corruption and system hang"
   href="show_bug.cgi?id=88433">bug 88433</a>.

output:
[root@x-hnr9 tests]# ./drv_module_reload
unbinding /sys/class/vtconsole/vtcon0/: (M) frame buffer device
module successfully unloaded
[root@x-hnr9 tests]# echo $?
0
[root@x-hnr9 tests]# ./drv_module_reload
 i915 debugfs path not found.

==Reproduce steps==
---------------------------- 
1. ./drv_module_reload</pre>
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