[Bug 14134] New: Crash when context is shared among 2 processes.

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=14134

           Summary: Crash when context is shared among 2 processes.
           Product: DRI
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libglx
        AssignedTo: dri...@li...
        ReportedBy: jo...@vi...


I am seeing the following crash when sharing a context between 2 processes with
glXImportContext (with LIBGL_ALWAYS_INDIRECT set):


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7c6c6b0 (LWP 3639)]
0xb7b9a434 in GetDrawableOrPixmap (glxc=0x0, drawId=77594626, 
    ppGlxDraw=0xbfeaaa48, ppPixmap=0xbfeaaa44, client=0x8e94a58)
    at ../../../GL/glx/glxcmds.c:475
475     ../../../GL/glx/glxcmds.c: No such file or directory.
        in ../../../GL/glx/glxcmds.c
(gdb) bt
#0  0xb7b9a434 in GetDrawableOrPixmap (glxc=0x0, drawId=77594626, 
    ppGlxDraw=0xbfeaaa48, ppPixmap=0xbfeaaa44, client=0x8e94a58)
    at ../../../GL/glx/glxcmds.c:475
#1  0xb7b9a73c in __glXDisp_SwapBuffers (cl=0x8e30768, 
    pc=0x9209638 "\237\v\003") at ../../../GL/glx/glxcmds.c:1502
#2  0xb7b9e006 in __glXDispatch (client=0x8e94a58)
    at ../../../GL/glx/glxext.c:561
#3  0x0814d82e in XaceCatchExtProc (client=0x8e94a58) at ../../Xext/xace.c:299
#4  0x0808d1ef in Dispatch () at ../../dix/dispatch.c:502
#5  0x0807470b in main (argc=9, argv=0xbfeab004, envp=Cannot access memory at
address 0x8
) at ../../dix/main.c:452


I have Xserver 1.4.1~git20080118 (debian unstable), mesa 7.0.2, video-intel
2.2.0 (intel 945 chipset)


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