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            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [BDW Regression]igt/gem_render_linear_blits fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=78937#c5">Comment # 5</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [BDW Regression]igt/gem_render_linear_blits fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=78937">bug 78937</a>
              from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=100070" name="attach_100070" title="dmesg">attachment 100070</a> <a href="attachment.cgi?id=100070&action=edit" title="dmesg">[details]</a></span>
dmesg

(In reply to <a href="show_bug.cgi?id=78937#c4">comment #4</a>)
<span class="quote">> Please test:
> <a href="http://patchwork.freedesktop.org/patch/26784/">http://patchwork.freedesktop.org/patch/26784/</a></span >

The bug still able to reproduce with this patch.

Output:
./gem_render_linear_blits
IGT-Version: 1.6-ge4ba3b7 (x86_64) (Linux: 3.15.0-rc3_prts_92f645_20140529
x86_64)
not enough RAM to run test, reducing buffer count
Verifying initialisation...
Cyclic blits, forward...
Test assertion failure function check_bo, file gem_render_linear_blits.c:79:
Last errno: 0, Success
Failed assertion: linear[i] == val
Expected 0x00000001, found 0x00040001 at offset 0x00000004</pre>
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