#0  0x00007f5f16d7b4a0 in ?? () from /usr/lib/x86_64-linux-gnu/VBoxOGLpackspu.so
No symbol table info available.
#1  0x00007f5f1746d9a5 in ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
No symbol table info available.
#2  0x00007f5f1748e69c in ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
No symbol table info available.
#3  0x00007f5f174929af in ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
No symbol table info available.
#4  0x00007f5f17f756fa in start_thread (arg=0x7f5f15b7c700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f5f15b7c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140046362986240, 5344506574909707446, 0, 140732191441679, 140046362986944, 140046389139824, -5434249330284587850, -5434244379046734666}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#5  0x00007f5f1a4bd2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.