Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 139731755673312 (LWP 7239)]
0x00007f15c0c9f139 in ?? () from /usr/lib/dri/i965_dri.so
(gdb) bt full
#0  0x00007f15c0c9f139 in ?? () from /usr/lib/dri/i965_dri.so
No symbol table info available.
#1  0x00007f15d31e5e6c in DoRender (cl=<value optimized out>,
    pc=0xac0e74 "\204", do_swap=0) at ../../../GL/glx/glxcmds.c:1851
        entry = {bytes = 16,
  varsize = 0x7f15d3201eb0 <__glXProgramStringARBReqSize>}
        extra = 0
        proc = (
    __GLXdispatchRenderProcPtr) 0x7f15d31ed8f0 <__glXDisp_ProgramStringARB>
        err = 0
        client = (ClientPtr) 0xb291b0
        left = 0
        cmdlen = 132
        error = 0
        commandsDone = 1
        glxc = (__GLXcontext *) 0xc92680
        sw = <value optimized out>
#2  0x00007f15d31e9c6c in __glXDispatch (client=0xb291b0)
    at ../../../GL/glx/glxext.c:561
        stuff = (xGLXSingleReq *) 0xac0e60
        opcode = <value optimized out>
        proc = (__GLXdispatchSingleProcPtr) 0x7f15d31e5f80 <__glXDisp_Render>
        cl = (__GLXclientState *) 0xf07910
---Type <return> to continue, or q <return> to quit---
        retval = 1
#3  0x000000000044ea9f in Dispatch () at ../../dix/dispatch.c:502
        clientReady = <value optimized out>
        result = <value optimized out>
        client = (ClientPtr) 0xb291b0
        nready = 0
        start_tick = 3140
#4  0x0000000000436b9d in main (argc=8, argv=0x7fffddab47d8,
    envp=<value optimized out>) at ../../dix/main.c:452
        pScreen = <value optimized out>
        i = 1
        error = 0
        xauthfile = <value optimized out>
        alwaysCheckForInput = {0, 1}