System Environment:
--------------------------

--Platform: G965

--Architecture(32-bit,64-bit,compatiblity): all

--2D driver:  beb72ae5aa053303f5cc419e9c9d7c6db964f160

--mesa(7_0 branch): 4b7147832678ab3014cf58da84f0962ed2b6c832

--Xserver(1.4 branch): 7982aaa7f071f9a21ad402da872d5328bd7e51ff

--Drm: ba7263b8c2f8c14c647da725ecbc73fcd456d63c

--Kernel:
2.6.23.1


Bug detailed description:
-------------------------
this issue happens on G965 with direct rendering

glean case vertProg1 failed with following output:
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, db, z24, s8, win+pmap, id 37
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, z24, s8, win+pmap, id 38
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, db, z24, s8, accrgba16, win+pmap, slow, id 41
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, z24, s8, accrgba16, win+pmap, slow, id 42
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, db, z24, s8, win+pmap, id 45
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, z24, s8, win+pmap, id 46
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, db, z24, s8, accrgba16, win+pmap, slow, id 49
        43 tests passed, 2 tests failed.
FAILURE:
  Program: SGE test
  Expected color: 0, 1, 1, 0
  Observed color: 1, 0, 0, 1
FAILURE:
  Program: SLT test
  Expected color: 1, 0, 0, 1
  Observed color: 0, 1, 1, 0
vertProg1:  FAIL rgba8, z24, s8, accrgba16, win+pmap, slow, id 50
        43 tests passed, 2 tests failed.


Reproduce steps:
----------------
1. start X
2. glean -r test -t vertProg1

Current result:
----------------
glean case vertProg1 failed