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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - glBufferSubData doesn't update the buffer"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90734#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - glBufferSubData doesn't update the buffer"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90734">bug 90734</a>
              from <span class="vcard"><a class="email" href="mailto:kaillasse91@hotmail.fr" title="kaillasse91@hotmail.fr">kaillasse91@hotmail.fr</a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=116223" name="attach_116223" title="test case">attachment 116223</a> <a href="attachment.cgi?id=116223&action=edit" title="test case">[details]</a></span>
test case


Added a test case.
Also tested on a gen4 chip, and the error appears.

>From oibaf ppa:
xserver-xorg-video-intel
2:2.99.917+git1506011932.189ad4~gd~t</pre>
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