[Bug 85367] [gen4] GPU hang in glmark-es2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85367

--- Comment #6 from Kenneth Graunke <kenneth at whitecape.org> ---
The draws are:

341 glDrawArrays(mode = GL_TRIANGLE_STRIP, first = 0, count = 18)
342 glUniformMatrix4fv(...)
343 glVertexAttribPointer(...)
344 glDrawElements(mode = GL_TRIANGLE_STRIP, count = 18, type =
GL_UNSIGNED_SHORT, indices = NULL)

Removing the glUniformMatrix4fv call between the two makes the hang disappear. 
This corresponds to removing the CONSTANT_BUFFER packet between the two
3DPRIMITIVE packets...

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