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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [i965 Bisected]Piglit/spec_ARB_framebuffer_object_fbo-drawbuffers-none_glDrawPixels fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=76721#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [i965 Bisected]Piglit/spec_ARB_framebuffer_object_fbo-drawbuffers-none_glDrawPixels fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=76721">bug 76721</a>
              from <span class="vcard"><a class="email" href="mailto:gregory.hainaut@gmail.com" title="gregory.hainaut@gmail.com">gregory.hainaut@gmail.com</a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=96593" name="attach_96593" title="always_save_context">attachment 96593</a> <a href="attachment.cgi?id=96593&action=edit" title="always_save_context">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=76721&attachment=96593'>[review]</a>
always_save_context

Hello,

I think I found the root cause of the bug. On meta.c, the shader context
(_Shader) is not saved when the extension is not enabled. It could potentially
lead to a corruption of the shader context.

Please find attached a small patch that I hope will fix your issue. 
Note1: I didn't manage to reproduce the bug on my side.
Note2: I only run 1000 piglit test with this patch (kepler/nouveau).</pre>
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