http://bugs.freedesktop.org/show_bug.cgi?id=13545

           Summary: [COMPIZ] compiz cause X crashed
           Product: Mesa
           Version: unspecified
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: high
         Component: GLX
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]
                CC: [EMAIL PROTECTED]


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

--Platform:gm965

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

--2D driver: 75ef3e669dac1259d282dcc8f54b197fc19f22b3 

--Mesa: 3a90679400e50fb5d319deee51e03a298735aa17 

--DRM: 690dd04d1b9a4da92139793d3f5129a80f9c7353

--Xserver: aec0d06469a2fa7440fdd5ee03dc256a68704e77 


--Kernel:
2.6.23.1


Bug detailed description:
-------------------------
startx normally, then run compiz will cause X crashed, we get backtrace as
following:

(gdb) bt
#0  0x0000003fbde305b5 in raise () from /lib64/libc.so.6
#1  0x0000003fbde32060 in abort () from /lib64/libc.so.6
#2  0x000000000045f633 in ddxGiveUp () at xf86Init.c:1290
#3  0x00000000004e5de8 in AbortServer () at log.c:406
#4  0x00000000004e63c5 in FatalError (
        f=0x55d3d0 "Caught signal %d.  Server aborting\n") at log.c:552
#5  0x0000000000476057 in xf86SigHandler (signo=11) at xf86Events.c:766
#6  <signal handler called>
#7  glxFillAlphaChannel (pixmap=<value optimized out>,
        x=<value optimized out>, y=0, width=<value optimized out>, height=25)
        at glxdri.c:322
#8  0x00002b1a2382694b in __glXDRIbindTexImage (
        baseContext=<value optimized out>, buffer=<value optimized out>,
        glxPixmap=0xb65900) at glxdri.c:439
#9  0x00002b1a237f54ac in __glXDisp_BindTexImageEXT (cl=<value optimized out>,
        pc=<value optimized out>) at glxcmds.c:1530
#10 0x00002b1a237f4282 in __glXDisp_VendorPrivate (cl=0xb55608,
        pc=<value optimized out>) at glxcmds.c:2245
#11 0x00002b1a237f8132 in __glXDispatch (client=0xb55410) at glxext.c:493
#12 0x0000000000447410 in Dispatch () at dispatch.c:502
#13 0x000000000042fa3a in main (argc=4, argv=0x7fff8834cbb8,
        envp=<value optimized out>) at main.c:454

Reproduce steps:
----------------
1. startx
2. run "compiz --replace"



Current result:
----------------
X crashed


Expected result:
----------------
compiz runs normally


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