-bash-4.4$ coredumpctl gdb 1165 PID: 1165 (xfce4-panel) UID: 1000 (aakcaagac) GID: 1000 (aakcaagac) Signal: 11 (SEGV) Timestamp: Mon 2017-06-26 23:15:43 CEST (33min ago) Command Line: xfce4-panel Executable: /usr/bin/xfce4-panel Control Group: /user.slice/user-1000.slice/session-5.scope Unit: session-5.scope Slice: user-1000.slice Session: 5 Owner UID: 1000 (aakcaagac) Boot ID: 7b289e4408af423e8090467a3f651ba9 Machine ID: b3c2075daed546b285cdceb12a9b9c0e Hostname: localhost.localdomain Storage: /var/lib/systemd/coredump/core.xfce4-panel.1000.7b289e4408af423e8090467a3f651ba9.1165.1498511743000000.lz4 Message: Process 1165 (xfce4-panel) of user 1000 dumped core. Stack trace of thread 1165: #0 0x00007ffb967bd7ab xfconf_cache_set_property_reply_handler (libxfconf-0.so.3) #1 0x00007ffb9327a394 g_task_return_now (libgio-2.0.so.0) #2 0x00007ffb9327adb6 g_task_return (libgio-2.0.so.0) #3 0x00007ffb932b9009 reply_cb (libgio-2.0.so.0) #4 0x00007ffb9327a394 g_task_return_now (libgio-2.0.so.0) #5 0x00007ffb9327adb6 g_task_return (libgio-2.0.so.0) #6 0x00007ffb932adcf1 g_dbus_connection_call_done (libgio-2.0.so.0) #7 0x00007ffb9327a394 g_task_return_now (libgio-2.0.so.0) #8 0x00007ffb9327adb6 g_task_return (libgio-2.0.so.0) #9 0x00007ffb9327b900 g_task_return_new_error (libgio-2.0.so.0) #10 0x00007ffb932a7438 send_message_data_deliver_error (libgio-2.0.so.0) #11 0x00007ffb932a74df send_message_with_reply_cancelled_idle_cb (libgio-2.0.so.0) #12 0x00007ffb9450fc67 g_idle_dispatch (libglib-2.0.so.0) #13 0x00007ffb94513277 g_main_context_dispatch (libglib-2.0.so.0) #14 0x00007ffb94513618 g_main_context_iterate.isra.25 (libglib-2.0.so.0) #15 0x00007ffb94513932 g_main_loop_run (libglib-2.0.so.0) #16 0x00007ffb956e70b5 gtk_main (libgtk-3.so.0) #17 0x000055f3b136fded main (xfce4-panel) #18 0x00007ffb93be34da __libc_start_main (libc.so.6) #19 0x000055f3b136ff3a _start (xfce4-panel) Stack trace of thread 1188: #0 0x00007ffb93cc7aad poll (libc.so.6) #1 0x00007ffb94513599 g_main_context_iterate.isra.25 (libglib-2.0.so.0) #2 0x00007ffb945136ac g_main_context_iteration (libglib-2.0.so.0) #3 0x00007ffb945136f1 glib_worker_main (libglib-2.0.so.0) #4 0x00007ffb9453a586 g_thread_proxy (libglib-2.0.so.0) #5 0x00007ffb93f9b36d start_thread (libpthread.so.0) #6 0x00007ffb93cd3b9f __clone (libc.so.6) Stack trace of thread 1446: #0 0x00007ffb93cce539 syscall (libc.so.6) #1 0x00007ffb945587da g_cond_wait_until (libglib-2.0.so.0) #2 0x00007ffb944e7b31 g_async_queue_pop_intern_unlocked (libglib-2.0.so.0) #3 0x00007ffb944e80ec g_async_queue_timeout_pop (libglib-2.0.so.0) #4 0x00007ffb9453b02e g_thread_pool_thread_proxy (libglib-2.0.so.0) #5 0x00007ffb9453a586 g_thread_proxy (libglib-2.0.so.0) #6 0x00007ffb93f9b36d start_thread (libpthread.so.0) #7 0x00007ffb93cd3b9f __clone (libc.so.6) Stack trace of thread 1189: #0 0x00007ffb93cc7aad poll (libc.so.6) #1 0x00007ffb94513599 g_main_context_iterate.isra.25 (libglib-2.0.so.0) #2 0x00007ffb94513932 g_main_loop_run (libglib-2.0.so.0) #3 0x00007ffb932bbb16 gdbus_shared_thread_func (libgio-2.0.so.0) #4 0x00007ffb9453a586 g_thread_proxy (libglib-2.0.so.0) #5 0x00007ffb93f9b36d start_thread (libpthread.so.0) #6 0x00007ffb93cd3b9f __clone (libc.so.6) GNU gdb (GDB) Fedora 8.0-13.fc26 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/xfce4-panel...Reading symbols from /usr/lib/debug/usr/bin/xfce4-panel.debug...done. done. [New LWP 1165] [New LWP 1188] [New LWP 1446] [New LWP 1189] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `xfce4-panel'. Program terminated with signal SIGSEGV, Segmentation fault. #0 xfconf_cache_set_property_reply_handler (proxy=0x55f3b33ee0d0, res=0x55f3b3845c30, user_data=0x7ffb7c014e40) at xfconf-cache.c:599 599 if(!cache->pending_calls) [Current thread is 1 (Thread 0x7ffb97371f00 (LWP 1165))] Missing separate debuginfos, use: dnf debuginfo-install at-spi2-atk-2.24.1-1.fc26.x86_64 at-spi2-core-2.24.1-1.fc26.x86_64 atk-2.24.0-1.fc26.x86_64 bzip2-libs-1.0.6-22.fc26.x86_64 cairo-1.14.10-1.fc26.x86_64 cairo-gobject-1.14.10-1.fc26.x86_64 dbus-glib-0.108-2.fc26.x86_64 dbus-libs-1.11.12-1.fc26.x86_64 expat-2.2.0-2.fc26.x86_64 fontconfig-2.12.1-4.fc26.x86_64 freetype-2.7.1-9.fc26.x86_64 gdk-pixbuf2-2.36.6-1.fc26.x86_64 glib2-2.52.2-2.fc26.x86_64 glibc-2.25-6.fc26.x86_64 graphite2-1.3.6-2.fc26.x86_64 gtk3-3.22.16-1.fc26.x86_64 gvfs-client-1.32.1-1.fc26.x86_64 harfbuzz-1.4.4-1.fc26.x86_64 libICE-1.0.9-9.fc26.x86_64 libSM-1.2.2-5.fc26.x86_64 libX11-1.6.5-2.fc26.x86_64 libXau-1.0.8-7.fc26.x86_64 libXcomposite-0.4.4-9.fc26.x86_64 libXcursor-1.1.14-8.fc26.x86_64 libXdamage-1.1.4-9.fc26.x86_64 libXext-1.3.3-5.fc26.x86_64 libXfixes-5.0.3-2.fc26.x86_64 libXi-1.7.9-2.fc26.x86_64 libXinerama-1.1.3-7.fc26.x86_64 libXrandr-1.5.1-2.fc26.x86_64 libXrender-0.9.10-2.fc26.x86_64 libXres-1.0.7-7.fc26.x86_64 libblkid-2.29.1-2.fc26.x86_64 libcap-2.25-5.fc26.x86_64 libcroco-0.6.12-1.fc26.x86_64 libdatrie-0.2.9-4.fc26.x86_64 libepoxy-1.4.1-1.fc26.x86_64 libffi-3.1-11.fc26.x86_64 libgcc-7.1.1-3.fc26.x86_64 libgcrypt-1.7.7-1.fc26.x86_64 libglvnd-0.2.999-14.20170308git8e6e102.fc26.x86_64 libglvnd-egl-0.2.999-14.20170308git8e6e102.fc26.x86_64 libglvnd-glx-0.2.999-14.20170308git8e6e102.fc26.x86_64 libgpg-error-1.25-2.fc26.x86_64 libmount-2.29.1-2.fc26.x86_64 libpng-1.6.28-2.fc26.x86_64 librsvg2-2.40.17-1.fc26.x86_64 libselinux-2.6-6.fc26.x86_64 libthai-0.1.25-2.fc26.x86_64 libuuid-2.29.1-2.fc26.x86_64 libwayland-client-1.13.0-1.fc26.x86_64 libwayland-cursor-1.13.0-1.fc26.x86_64 libwnck3-3.20.1-2.fc26.x86_64 libxcb-1.12-3.fc26.x86_64 libxkbcommon-0.7.1-3.fc26.x86_64 libxml2-2.9.4-2.fc26.x86_64 lz4-libs-1.7.5-3.fc26.x86_64 mesa-libwayland-egl-17.1.3-2.fc26.x86_64 pango-1.40.6-1.fc26.x86_64 pcre-8.40-7.fc26.x86_64 pixman-0.34.0-3.fc26.x86_64 startup-notification-0.12-12.fc26.x86_64 systemd-libs-233-4.fc26.x86_64 xcb-util-0.4.0-6.fc26.x86_64 xz-libs-5.2.3-2.fc26.x86_64 zlib-1.2.11-2.fc26.x86_64 (gdb) bt full #0 0x00007ffb967bd7ab in xfconf_cache_set_property_reply_handler (proxy=0x55f3b33ee0d0, res=0x55f3b3845c30, user_data=0x7ffb7c014e40) at xfconf-cache.c:599 cache = 0x0 old_item = 0x7ffb7c014e40 item = error = 0x0 result = #1 0x00007ffb9327a394 in g_task_return_now () at /lib64/libgio-2.0.so.0 #2 0x00007ffb9327adb6 in g_task_return () at /lib64/libgio-2.0.so.0 #3 0x00007ffb932b9009 in reply_cb () at /lib64/libgio-2.0.so.0 #4 0x00007ffb9327a394 in g_task_return_now () at /lib64/libgio-2.0.so.0 #5 0x00007ffb9327adb6 in g_task_return () at /lib64/libgio-2.0.so.0 #6 0x00007ffb932adcf1 in g_dbus_connection_call_done () at /lib64/libgio-2.0.so.0 #7 0x00007ffb9327a394 in g_task_return_now () at /lib64/libgio-2.0.so.0 #8 0x00007ffb9327adb6 in g_task_return () at /lib64/libgio-2.0.so.0 #9 0x00007ffb9327b900 in g_task_return_new_error () at /lib64/libgio-2.0.so.0 #10 0x00007ffb932a7438 in send_message_data_deliver_error () at /lib64/libgio-2.0.so.0 #11 0x00007ffb932a74df in send_message_with_reply_cancelled_idle_cb () at /lib64/libgio-2.0.so.0 #12 0x00007ffb9450fc67 in g_idle_dispatch () at /lib64/libglib-2.0.so.0 #13 0x00007ffb94513277 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 ---Type to continue, or q to quit--- #14 0x00007ffb94513618 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #15 0x00007ffb94513932 in g_main_loop_run () at /lib64/libglib-2.0.so.0 #16 0x00007ffb956e70b5 in gtk_main () at /lib64/libgtk-3.so.0 #17 0x000055f3b136fded in main (argc=, argv=) at main.c:352 context = application = 0x55f3b33bcb20 error = 0x0 dbus_service = 0x55f3b33e1790 succeed = remote_succeed = 124 i = signums = {2, 3, 15, 6, 10} error_msg = sm_client = 0x55f3b33e82b0 (gdb) q -bash-4.4$