$ coredumpctl dump 22757 PID: 22757 (gnome-nettool) UID: 1000 (tom) GID: 100 (users) Signal: 6 (ABRT) Timestamp: Fri 2016-02-05 13:42:31 EST (7min ago) Command Line: gnome-nettool Executable: /usr/bin/gnome-nettool Control Group: /user.slice/user-1000.slice/user@1000.service/dbus.service Unit: user@1000.service Slice: user-1000.slice Owner UID: 1000 (tom) Boot ID: 09b2b234759049b0aa8d31f4b3467c8d Machine ID: 74a92a7c208b4d178600a0de919b652e Hostname: bento Coredump: /var/lib/systemd/coredump/core.gnome-nettool.1000.09b2b234759049b0aa8d31f4b3467c8d.22757.1454697751000000.lz4 Message: Process 22757 (gnome-nettool) of user 1000 dumped core. Stack trace of thread 22757: #0 0x00007f83d0df35f8 raise (libc.so.6) #1 0x00007f83d0df4a7a abort (libc.so.6) #2 0x00007f83d0e3205a __libc_message (libc.so.6) #3 0x00007f83d0eb95d7 __fortify_fail (libc.so.6) #4 0x00007f83d0eb95a0 __stack_chk_fail (libc.so.6) #5 0x000000000041117d lookup_foreach_with_tree (gnome-nettool) #6 0x000000000040a9b3 netinfo_io_text_buffer_dialog (gnome-nettool) #7 0x00007f83d13cac7a g_main_context_dispatch (libglib-2.0.so.0) #8 0x00007f83d13cb020 n/a (libglib-2.0.so.0) #9 0x00007f83d13cb342 g_main_loop_run (libglib-2.0.so.0) #10 0x00007f83d2af7165 gtk_main (libgtk-3.so.0) #11 0x000000000040852b main (gnome-nettool) #12 0x00007f83d0de0610 __libc_start_main (libc.so.6) #13 0x0000000000408638 _start (gnome-nettool) Stack trace of thread 22758: #0 0x00007f83d0ea018d poll (libc.so.6) #1 0x00007f83d13cafbc n/a (libglib-2.0.so.0) #2 0x00007f83d13cb0cc g_main_context_iteration (libglib-2.0.so.0) #3 0x00007f83d13cb109 n/a (libglib-2.0.so.0) #4 0x00007f83d13f1715 n/a (libglib-2.0.so.0) #5 0x00007f83d116b4a4 start_thread (libpthread.so.0) #6 0x00007f83d0ea913d __clone (libc.so.6) Stack trace of thread 22759: #0 0x00007f83d0ea018d poll (libc.so.6) #1 0x00007f83d13cafbc n/a (libglib-2.0.so.0) #2 0x00007f83d13cb342 g_main_loop_run (libglib-2.0.so.0) #3 0x00007f83d1bda236 n/a (libgio-2.0.so.0) #4 0x00007f83d13f1715 n/a (libglib-2.0.so.0) #5 0x00007f83d116b4a4 start_thread (libpthread.so.0) #6 0x00007f83d0ea913d __clone (libc.so.6) Stack trace of thread 22760: #0 0x00007f83d0ea018d poll (libc.so.6) #1 0x00007f83d13cafbc n/a (libglib-2.0.so.0) #2 0x00007f83d13cb0cc g_main_context_iteration (libglib-2.0.so.0) #3 0x00007f83c445125d n/a (libdconfsettings.so) #4 0x00007f83d13f1715 n/a (libglib-2.0.so.0) #5 0x00007f83d116b4a4 start_thread (libpthread.so.0) #6 0x00007f83d0ea913d __clone (libc.so.6)