.
Thread 3 (Thread 0x7f9276cbe700 (LWP 16405)):
#0  0x00007f92807200cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f927da7aebc in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f92700010e0, timeout=-1, context=0x15332e0) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:4103
        poll_func = 0x7f927da8a3e0 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x15332e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:3803
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f92700010e0
#3  0x00007f927da7afcc in g_main_context_iteration (context=context@entry=0x15332e0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:3869
        retval = <optimized out>
#4  0x00007f9276cc627d in dconf_gdbus_worker_thread (user_data=0x15332e0) at dconf-gdbus-thread.c:82
        context = 0x15332e0
#5  0x00007f927daa1955 in g_thread_proxy (data=0x14ea4a0) at /build/buildd/glib2.0-2.43.90/./glib/gthread.c:764
        thread = 0x14ea4a0
#6  0x00007f927cb7e0a5 in start_thread (arg=0x7f9276cbe700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7f9276cbe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140267035027200, 7901015807576280980, 0, 0, 140267035027904, 140267035027200, -7889495570336411756, -7889473751928107116}, 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"
#7  0x00007f928072a57d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f92764bd700 (LWP 16406)):
#0  0x00007f92807200cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f927da7aebc in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f92680010c0, timeout=-1, context=0x7f9270011620) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:4103
        poll_func = 0x7f927da8a3e0 <g_poll>
#2  g_main_context_iterate (context=0x7f9270011620, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:3803
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7f92680010c0
#3  0x00007f927da7b242 in g_main_loop_run (loop=0x7f92700115b0) at /build/buildd/glib2.0-2.43.90/./glib/gmain.c:4002
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007f927e070f06 in gdbus_shared_thread_func (user_data=0x7f92700115f0) at /build/buildd/glib2.0-2.43.90/./gio/gdbusprivate.c:274
        data = 0x7f92700115f0
#5  0x00007f927daa1955 in g_thread_proxy (data=0x1539ad0) at /build/buildd/glib2.0-2.43.90/./glib/gthread.c:764
        thread = 0x1539ad0
#6  0x00007f927cb7e0a5 in start_thread (arg=0x7f92764bd700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7f92764bd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140267026634496, 7901015807576280980, 0, 0, 140267026635200, 140267026634496, -7889496669311168620, -7889473751928107116}, 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"
#7  0x00007f928072a57d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f928184f740 (LWP 16403)):
#0  0x00007f92806b2f70 in __GI___libc_malloc (bytes=176) at malloc.c:2887
        ar_ptr = 0x7e90a7007e90a618
        victim = 0x0
        __func__ = "__libc_malloc"
#1  0x00007f9274334e69 in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libGL.so.1
No symbol table info available.
#2  0x00007f926ea38f46 in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libnvidia-glcore.so.340.76
No symbol table info available.
#3  0x00007f926ea4c18d in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libnvidia-glcore.so.340.76
No symbol table info available.
#4  0x00007f926ea4c3a9 in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libnvidia-glcore.so.340.76
No symbol table info available.
#5  0x00007f9274312200 in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libGL.so.1
No symbol table info available.
#6  0x00007f92743126bc in ?? () from /tmp/apport_sandbox_TIqat4/usr/lib/nvidia-340/libGL.so.1
No symbol table info available.
#7  0x00007f92816600fd in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#8  0x00007f9281660223 in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#9  0x00007f9281664c6e in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#10 0x00007f928165fff4 in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#11 0x00007f92816643ab in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#12 0x00007f92809f602b in dlopen_doit (a=0x7fff3b6ee5b0) at dlopen.c:66
        args = 0x7fff3b6ee5b0
#13 0x00007f928165fff4 in ?? () from /tmp/apport_sandbox_TIqat4/lib64/ld-linux-x86-64.so.2
No symbol table info available.
#14 0x00007f92809f662d in _dlerror_run (operate=operate@entry=0x7f92809f5fd0 <dlopen_doit>, args=args@entry=0x7fff3b6ee5b0) at dlerror.c:163
        result = 0x7f9280bf8100 <last_result>
#15 0x00007f92809f60c1 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
        args = {file = 0x438aa9 "libGL.so.1", mode = 1, new = 0x0, caller = 0x417e1f <NvCtrlInitGlxAttributes+159>}
#16 0x0000000000417e1f in NvCtrlInitGlxAttributes ()
No symbol table info available.
#17 0x0000000000415338 in NvCtrlAttributeInit ()
No symbol table info available.
#18 0x000000000041937e in ?? ()
No symbol table info available.
#19 0x0000000000419adf in nv_add_target ()
No symbol table info available.
#20 0x0000000000419d1c in NvCtrlConnectToSystem ()
No symbol table info available.
#21 0x0000000000407e97 in main ()
No symbol table info available.