[root@funkenote ~]# coredumpctl gdb 659 PID: 659 (gnome-shell) UID: 120 (gdm) GID: 120 (gdm) Signal: 11 (SEGV) Timestamp: Ter 2015-09-22 23:08:29 BRT (14h ago) Command Line: gnome-shell --mode=gdm --wayland --display-server Executable: /usr/bin/gnome-shell Control Group: /user.slice/user-120.slice/session-c1.scope Unit: session-c1.scope Slice: user-120.slice Session: c1 Owner UID: 120 (gdm) Boot ID: 85e0edd55b144623abaaac41cec90fca Machine ID: bfec52f7892649b3aa4180f5fbf88627 Hostname: funkenote Coredump: /var/lib/systemd/coredump/core.gnome-shell.120.85e0edd55b144623abaaac41cec90fca.659.1442974109000000.lz4 Message: Process 659 (gnome-shell) of user 120 dumped core. GNU gdb (GDB) 7.10 Copyright (C) 2015 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-unknown-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/gnome-shell...(no debugging symbols found)...done. [New LWP 659] [New LWP 695] [New LWP 664] [New LWP 663] [New LWP 697] warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `gnome-shell --mode=gdm --wayland --display-server'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fc5c125c5de in ?? () from /usr/lib/libcogl.so.20 [Current thread is 1 (Thread 0x7fc5c69da9c0 (LWP 659))] (gdb) backtrace #0 0x00007fc5c125c5de in ?? () from /usr/lib/libcogl.so.20 #1 0x00007fc5c125e7bb in ?? () from /usr/lib/libcogl.so.20 #2 0x00007fc5c125e869 in ?? () from /usr/lib/libcogl.so.20 #3 0x00007fc5c12188bf in cogl_display_setup () from /usr/lib/libcogl.so.20 #4 0x00007fc5c1217e09 in cogl_renderer_check_onscreen_template () from /usr/lib/libcogl.so.20 #5 0x00007fc5c483bf9b in ?? () from /usr/lib/libclutter-1.0.so.0 #6 0x00007fc5c4854743 in ?? () from /usr/lib/libclutter-1.0.so.0 #7 0x00007fc5c4866ec9 in ?? () from /usr/lib/libclutter-1.0.so.0 #8 0x00007fc5c48670d0 in ?? () from /usr/lib/libclutter-1.0.so.0 #9 0x00007fc5c3b36029 in g_option_context_parse () from /usr/lib/libglib-2.0.so.0 #10 0x00007fc5c4867e78 in clutter_init () from /usr/lib/libclutter-1.0.so.0 #11 0x00007fc5c545886f in meta_clutter_init () from /usr/lib/libmutter.so.0 #12 0x00007fc5c5489012 in meta_init () from /usr/lib/libmutter.so.0 #13 0x0000000000401ddb in main () (gdb) quit [root@funkenote ~]#