. Thread 4 (Thread 0x7fc33fcf4700 (LWP 15019)): #0 0x00007fc3474163dd in poll () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007fc347b6e394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007fc347b6e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007fc33fcfba9d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so No symbol table info available. #4 0x00007fc347b92c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007fc3476f7f6e in start_thread (arg=0x7fc33fcf4700) at pthread_create.c:311 __res = pd = 0x7fc33fcf4700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140476565899008, 6702139062654423106, 0, 140476761243744, 140733612560448, 4096, -6736056378698674110, -6736178701414215614}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #6 0x00007fc347422e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 3 (Thread 0x7fc33f4f3700 (LWP 15020)): #0 0x00007fc3474163dd in poll () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007fc347b6e394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007fc347b6e7fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007fc348e5b646 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007fc347b92c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007fc3476f7f6e in start_thread (arg=0x7fc33f4f3700) at pthread_create.c:311 __res = pd = 0x7fc33f4f3700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140476557506304, 6702139062654423106, 0, 140476761243744, 140476565895328, 4096, -6736055279723917246, -6736178701414215614}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #6 0x00007fc347422e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 2 (Thread 0x7fc33d3fa700 (LWP 15021)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc347bae027 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x0000000000425734 in ?? () No symbol table info available. #3 0x00007fc347b92c25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007fc3476f7f6e in start_thread (arg=0x7fc33d3fa700) at pthread_create.c:311 __res = pd = 0x7fc33d3fa700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140476522931968, 6702139062654423106, 0, 140476761243744, 140733612563056, 4096, -6736050746922807230, -6736178701414215614}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #5 0x00007fc347422e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 1 (Thread 0x7fc34b6f79c0 (LWP 15017)): #0 0x00007fc347e59499 in g_type_check_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #1 0x00007fc347e4f084 in g_signal_handlers_disconnect_matched () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #2 0x00007fc349806ccc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #3 0x00007fc349806ff5 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #4 0x00007fc34980783b in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #5 0x00000000004555b4 in ?? () No symbol table info available. #6 0x00007fc347e36268 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #7 0x00007fc347e486cd in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #8 0x00007fc347e508ba in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #9 0x00007fc347e50b92 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #10 0x00000000004571f9 in ?? () No symbol table info available. #11 0x0000000000454ba9 in ?? () No symbol table info available. #12 0x00007fc34973f3ad in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #13 0x00007fc347e36268 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #14 0x00007fc347e486cd in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #15 0x00007fc347e508ba in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #16 0x00007fc347e510c2 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #17 0x00007fc34987b6c2 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #18 0x00007fc347e36268 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #19 0x00007fc347e486cd in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #20 0x00007fc347e508ba in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #21 0x00007fc347e510c2 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #22 0x00007fc3497a24c3 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #23 0x00007fc3497a3ff6 in gtk_selection_convert () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #24 0x0000000000453f07 in ?? () No symbol table info available. #25 0x00007fc34973926e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #26 0x00007fc347e36268 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #27 0x00007fc347e486cd in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #28 0x00007fc347e4fe97 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #29 0x00007fc347e510c2 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #30 0x00007fc34987cff3 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #31 0x00007fc34987cc88 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #32 0x00007fc349738083 in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 No symbol table info available. #33 0x00007fc349364ff2 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 No symbol table info available. #34 0x00007fc347b6e0a6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #35 0x00007fc347b6e3f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #36 0x00007fc347b6e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #37 0x00007fc348e28a1c in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #38 0x000000000041e530 in main () No symbol table info available.