...
*** Error in `xfce4-power-manager': free(): invalid pointer: 0x000000000148c250 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x77e9d)[0x7f13514ece9d]
/lib64/libc.so.6(+0x7f53c)[0x7f13514f453c]
/lib64/libc.so.6(cfree+0x4c)[0x7f13514f8e9c]
/lib64/libglib-2.0.so.0(g_free+0xf)[0x7f135250579f]
xfce4-power-manager[0x41cb73]
xfce4-power-manager[0x41cef9]
xfce4-power-manager[0x41d2e4]
xfce4-power-manager[0x41db80]
xfce4-power-manager[0x410ef1]
/lib64/libgobject-2.0.so.0(g_object_set_property+0x20b)[0x7f135280807b]
/lib64/libxfconf-0.so.2(+0x53d6)[0x7f135388a3d6]
/lib64/libgobject-2.0.so.0(g_closure_invoke+0x145)[0x7f13527ffcd5]
/lib64/libgobject-2.0.so.0(+0x21539)[0x7f1352811539]
/lib64/libgobject-2.0.so.0(g_signal_emit_valist+0xe80)[0x7f1352819ef0]
/lib64/libgobject-2.0.so.0(g_signal_emit+0x8f)[0x7f135281a29f]
/lib64/libgobject-2.0.so.0(g_closure_invoke+0x145)[0x7f13527ffcd5]
/lib64/libgobject-2.0.so.0(+0x21539)[0x7f1352811539]
/lib64/libgobject-2.0.so.0(g_signal_emit_valist+0xe80)[0x7f1352819ef0]
/lib64/libgobject-2.0.so.0(g_signal_emit+0x8f)[0x7f135281a29f]
/lib64/libffi.so.6(ffi_call_unix64+0x4c)[0x7f134cf49db0]
/lib64/libffi.so.6(ffi_call+0x2f8)[0x7f134cf49818]
/lib64/libgobject-2.0.so.0(g_cclosure_marshal_generic+0x1f9)[0x7f13528004f9]
/lib64/libdbus-glib-1.so.2(+0x10c7e)[0x7f135366bc7e]
/lib64/libgobject-2.0.so.0(g_closure_invoke+0x145)[0x7f13527ffcd5]
/lib64/libgobject-2.0.so.0(+0x21539)[0x7f1352811539]
/lib64/libgobject-2.0.so.0(g_signal_emit_valist+0xe80)[0x7f1352819ef0]
/lib64/libgobject-2.0.so.0(g_signal_emit+0x8f)[0x7f135281a29f]
/lib64/libdbus-glib-1.so.2(+0x11863)[0x7f135366c863]
/lib64/libdbus-1.so.3(dbus_connection_dispatch+0x375)[0x7f13534220a5]
/lib64/libdbus-glib-1.so.2(+0xace5)[0x7f1353665ce5]
/lib64/libglib-2.0.so.0(g_main_context_dispatch+0x15a)[0x7f13524ffa8a]
/lib64/libglib-2.0.so.0(+0x49e20)[0x7f13524ffe20]
/lib64/libglib-2.0.so.0(g_main_loop_run+0xc2)[0x7f1352500142]
/lib64/libgtk-3.so.0(gtk_main+0x85)[0x7f1354d26155]
xfce4-power-manager[0x409e6f]
xfce4-power-manager[0x40a44f]
/lib64/libc.so.6(__libc_start_main+0xf0)[0x7f1351495790]
xfce4-power-manager[0x40a6e9]
...