Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
#0  0x0000000000000000 in ?? ()
#1  0x00007f99d6e8d440 in DoMakeCurrent (cl=0x2d0d268, drawId=0, readId=<optimized out>, contextId=<optimized out>, tag=<optimized out>) at glxcmds.c:617
#2  0x00007f99d6e91703 in __glXDispatch (client=<optimized out>) at glxext.c:573
#3  0x0000000000438891 in Dispatch () at dispatch.c:428
#4  0x0000000000427965 in main (argc=8, argv=0x7fff57d27e58, envp=<optimized out>) at main.c:288
#0  0x0000000000000000 in ?? ()
No symbol table info available.
#1  0x00007f99d6e8d440 in DoMakeCurrent (cl=0x2d0d268, drawId=0, readId=<optimized out>, contextId=<optimized out>, tag=<optimized out>) at glxcmds.c:617
        client = 0x2d0d130
        reply = {type = 224 '\340', unused = 191 '\277', sequenceNumber = 571, length = 0, contextTag = 37471872, pad2 = 0, pad3 = 8238280, pad4 = 0, pad5 = 4444132, pad6 = 0}
        glxc = 0x0
        prevglxc = <optimized out>
        drawPriv = 0x0
        readPriv = 0x0
        error = <optimized out>
        mask = <optimized out>
        __PRETTY_FUNCTION__ = "DoMakeCurrent"
#2  0x00007f99d6e91703 in __glXDispatch (client=<optimized out>) at glxext.c:573
        rendering = 0 '\000'
        stuff = 0x2f3e000
        opcode = 5 '\005'
        proc = <optimized out>
        cl = 0x2d0d268
        retval = <optimized out>
#3  0x0000000000438891 in Dispatch () at dispatch.c:428
        clientReady = 0x26df5e0
        result = <optimized out>
        client = 0x2d0d130
        nready = 0
        icheck = 0x7df130 <checkForInput>
        start_tick = 120
#4  0x0000000000427965 in main (argc=8, argv=0x7fff57d27e58, envp=<optimized out>) at main.c:288
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
A debugging session is active.

	Inferior 1 [process 8422] will be detached.

Quit anyway? (y or n) Detaching from program: /usr/bin/Xorg, process 8422