. Thread 2 (process 1257): #0 0x00007fc6a6403283 in *__GI___poll (fds=, nfds=, timeout=) at ../sysdeps/unix/sysv/linux/poll.c:87 resultvar = 18446744073709551100 oldtype = 0 result = #1 0x0000000000c476f0 in ?? () No symbol table info available. #2 0x00000000ffffffff in ?? () No symbol table info available. #3 0x0000000000000001 in ?? () No symbol table info available. #4 0x0000000000c476f0 in ?? () No symbol table info available. #5 0x0000000000000001 in ?? () No symbol table info available. #6 0x00007fc6a5603170 in g_main_context_iterate (context=0xc47390, block=, dispatch=1) at /build/buildd/glib2.0-2.28.0/glib/gmain.c:4319 max_priority = 2147483647 timeout = -1 some_ready = nfds = 1 allocated_nfds = fds = (GPollFD *) 0xc476f0 #7 0x0000000000c27b40 in ?? () No symbol table info available. #8 0x00007fc6a58ad7a8 in test_run_name () from /lib/libglib-2.0.so.0 No symbol table info available. #9 0x00000001a6ddcd70 in ?? () No symbol table info available. #10 0x00007fc6a58ad7e0 in ?? () from /lib/libglib-2.0.so.0 No symbol table info available. #11 0x0000000000c4737c in ?? () No symbol table info available. #12 0x7fffffffffffffff in ?? () No symbol table info available. #13 0x0000000000000003 in ?? () No symbol table info available. #14 0x0000000000c47370 in ?? () No symbol table info available. #15 0x00007fc6a6ddb390 in __pthread_mutex_lock_full (mutex=0xc476f0) at pthread_mutex_lock.c:297 kind = -516 oldval = id = -1 __PRETTY_FUNCTION__ = "__pthread_mutex_lock_full" #16 0x00007fc6a58adea0 in ?? () from /lib/libglib-2.0.so.0 No symbol table info available. #17 0x0000000000c4737c in ?? () No symbol table info available. #18 0x00007fc6a6ddb390 in __pthread_mutex_lock_full (mutex=0x7fc6a58ad7e0) at pthread_mutex_lock.c:297 kind = -516 oldval = id = 12874620 __PRETTY_FUNCTION__ = "__pthread_mutex_lock_full" #19 0x0000000000000003 in ?? () No symbol table info available. #20 0x00007fc6a5603a4a in g_main_loop_run (loop=0x3) at /build/buildd/glib2.0-2.28.0/glib/gmain.c:4319 __PRETTY_FUNCTION__ = "g_main_loop_run" #21 0x00007fc6a2d6db34 in gdbus_shared_thread_func ( data=) at /build/buildd/glib2.0-2.28.0/gio/gdbusprivate.c:471 No locals. #22 0x00007fc6a562a314 in g_thread_create_proxy (data=0xc47470) at /build/buildd/glib2.0-2.28.0/glib/gthread.c:1042 thread = (GRealThread *) 0xc47470 __PRETTY_FUNCTION__ = "g_thread_create_proxy" #23 0x00007fc6a6dd8d8c in start_thread (arg=0x7fc6a2612700) at allocatestack.c:304 pd = (struct pthread *) 0x7fc6a2612700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140491104528128, -566083255000648656, 140736467232400, 140491104528832, 0, 3, 552142326903059504, 552135141930546224}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 robust = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #24 0x00007fc6a641039d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 No locals. #25 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (process 1231): #0 0x0000000000000000 in ?? () No symbol table info available. #1 0x00007fc687b992df in nux::GLFramebufferObject::_GenerateFboId () at ./GLDeviceFrameBufferObject.cpp:102 id = 0 #2 0x00007fc687b99385 in GLFramebufferObject (this=0x11471c8) at ./GLDeviceFrameBufferObject.cpp:102 No locals. #3 0x00007fc687bfb54f in IOpenGLFrameBufferObject (this=0x11470d0, __Nux_FileName__=, __Nux_LineNumber__=) at ./IOpenGLFrameBufferObject.cpp:51 No locals. #4 0x00007fc687bef2c2 in nux::GpuDevice::CreateFrameBufferObject ( this=, ppFrameBufferObject=0x7fffc322e258) at ./GpuDevice.cpp:236 No locals. #5 0x00007fc687befbe6 in nux::GpuDevice::CreateFrameBufferObject ( this=) at ./GpuDevice.cpp:236 ptr = (class nux::IOpenGLFrameBufferObject *) 0x7fc6a6981e5d h = {ptr_ = 0x7fffc322e360, _reference_count = 0x7fffc322e3d0, _weak_reference_count = 0x11216b0, _objectptr_count = 0x112c510, _destroyed = 0x2d0540} #6 0x00007fc687bb0fbf in GraphicsEngine (this=0x112dfd0, GlWindow=, create_rendering_data=) at ./GraphicsEngine.cpp:209 No locals. #7 0x00007fc687e339a0 in nux::GpuDevice::_StreamSource () from /usr/lib/libnux-graphics-0.9.so.0 No symbol table info available. #8 0x00007fc6874bc189 in ~NString (this=) at ./TextString.cpp:72 No locals. #9 0x0000000000000000 in ?? () No symbol table info available. Current language: auto; currently c