[Bug 53111] [bisected] lockups since added support for virtual address space on cayman v11

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=53111

--- Comment #21 from Alexandre Demers <alexandre.f.demers at gmail.com> 2012-08-23 13:13:25 UTC ---
(In reply to comment #20)
> (In reply to comment #19)
> > So about this locking piglit test (depthstencil-render-miplevels 146
> > s=z24_s8_d=z32f_s8), I've been able to track it down to:
> > line 218:         piglit_report_result(PIGLIT_SKIP);
> 
> How did you determine that? It's weird, I wouldn't expect a skipped test to
> produce any actual GPU rendering.

I used gdb and step into the code until it locked. It gets out at level 0,
after going through:

 /**
 * Attach the proper miplevel of each texture to the framebuffer
 */
void
set_up_framebuffer_for_miplevel(int level)...

Before this call, there is a framebuffer initialization:
    GLuint fbo;
    glGenFramebuffers(1, &fbo);
    glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
    glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);

    for (int level = 0; level <= max_miplevel; ++level) {
        set_up_framebuffer_for_miplevel(level);

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