[Bug 89293] New: [i965] [bisected] [VMware Workstation] 514fd1c commit breaks some Piglit tests in Windows VMs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89293

            Bug ID: 89293
           Summary: [i965] [bisected] [VMware Workstation] 514fd1c commit
                    breaks some Piglit tests in Windows VMs
           Product: Mesa
           Version: 10.4
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: svyatoslav.pankratov at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

System Environment:
--------------------------
OS: Ubuntu 14.04.1 (kernel 3.13.0-45-generic)
CPU: Intel Xeon E3-1285 V2 (IB)
Mesa: 10.4.0-devel (git-514fd1c55e617bb325979cbee4a89f0727c3b567)
VMware Workstation: 11.0.0 build-2281883
VMware Player: 7.0.0 build-2281883
VMware tools: 9.0.0 build-1541296

After mentioned commit, some piglit tests start fails in Windows 7 VM under
VMware Workstation(or Player).

How to reproduce:
-------------------------
1) install Mesa with guilty commit.
2) run VMware Player Windows 7 VM.
3) run piglit tests:
    spec/ARB_framebuffer_object/fbo-drawbuffers-none gl_FragColor
    spec/ARB_framebuffer_object/fbo-drawbuffers-none glDrawPixels
    spec/!OpenGL 1.1/drawbuffer-modes
    spec/EXT_framebuffer_object/fbo-drawbuffers

Also I'm added to fbo-drawbuffers-none test some code for saving FBO content
with various COLOR_ATTACHMENTs into TGA texture. As result, in case with
COLOR_ATTACHMENT0 all looks fine, but with other attachments I see glitches
instead red square.

I reverted this commit and glitches gone. This commit added some functionality
for gen 7 graphics (Haswell), but also breaks tests on previous graphics gen -
Ivy Bridge. Looks like an commit added error to shared part for 6 and 7 gens.

Also in some cases, like replaying apitraces from VM with executing mentioned
tests, problem may appear in qapitrace UI in another manner.

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