http://bugs.freedesktop.org/show_bug.cgi?id=16304

           Summary: X crash when run ''glxtestperf''
           Product: Mesa
           Version: unspecified
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: GLX
        AssignedTo: mesa3d-dev@lists.sourceforge.net
        ReportedBy: [EMAIL PROTECTED]
                CC: [EMAIL PROTECTED]


Created an attachment (id=17049)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17049)
Xorg.0.log

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

--Platform:965
--Architecture(32-bit,64-bit,compatiblity):32bit
--2D driver:master 79f94ee3c4652019395b9c329d94f7779c558571

--3D driver:master 9563449c14f06b0927adecf36711c034b561e121

--DRM:master  4f3da2f200577fcfbf913985246b3a4d23c6a818

--Xserver:master f8431a62d57ab3118a0b409bce977db8261e2930


--Kernel:2.6.25

Bug detailed description:
--------------------------
Run xinit&, then ./glxtestperf ,X will crash when going to "Benchmark: 2" with
below info:

Benchmark: 2
ZSmooth Triangles
Current size: 480
Elapsed time for the calibration test (265): 2.000000
Selected number of benchmark iterations: 662
intelWaitIrq: drm_i915_irq_wait: -16

Program exited with code 01. 
-------------------------------------------------

gdb Backtrace:
0: X(xf86SigHandler+0x7b) [0x80ca1ab]
1: [0xb7f43400]
2: /opt/X11R7/lib/xorg/modules/drivers//intel_drv.so [0xb7daec4b]
3: /opt/X11R7/lib/xorg/modules/extensions//libglx.so [0xb7e47899]
4: X(AbortDDX+0x82) [0x80a5692]
5: X(AbortServer+0x28) [0x813b2d8]
6: X(FatalError+0x67) [0x813b867]
7: /opt/X11R7/lib/xorg/modules/drivers//intel_drv.so(I830WaitLpRing+0x167)
[0xb7da1b37]
8: /opt/X11R7/lib/xorg/modules/drivers//intel_drv.so [0xb7dc8c2e]
9: /opt/X11R7/lib/xorg/modules//libexa.so(exaFillRegionTiled+0x430)
[0xb7c3f7e0]
10: /opt/X11R7/lib/xorg/modules//libexa.so [0xb7c3fd47]
11: X [0x817649a]
12: X(miPaintWindow+0x1c1) [0x810e161]
13: X(miWindowExposures+0xc4) [0x810e4b4]
14: /opt/X11R7/lib/xorg/modules/extensions//libdri.so(DRIWindowExposures+0xbf)
[0xb7f2931f]
15: X(MapWindow+0x2bb) [0x807213b]
16: X(InitRootWindow+0x101) [0x80722d1]
17: X(main+0x39c) [0x806cbac]
18: /lib/libc.so.6(__libc_start_main+0xe0) [0xbea390]
19: X(FontFileCompleteXLFD+0x95) [0x806c091]



Reproduce steps:
----------------
1.startx 
2../gltestperf


Current result:
----------------
X crash 

Expected result:
----------------
run normally


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