Program received signal SIGSEGV, Segmentation fault.
0x0000000000416196 in weston_keyboard_set_focus (keyboard=0x0, surface=0x1bed2d0) at input.c:690
690		struct wl_display *display = keyboard->seat->compositor->wl_display;
(gdb) bt
#0  0x0000000000416196 in weston_keyboard_set_focus (keyboard=0x0, surface=0x1bed2d0) at input.c:690
#1  0x00007f8aa86a114d in restore_focus_state (shell=0x1b8dee0, ws=0x1b823e0) at shell.c:661
#2  0x00007f8aa86a96e8 in resume_desktop (shell=0x1b8dee0) at shell.c:3699
#3  0x00007f8aa86a977e in desktop_shell_unlock (client=0x1e6c440, resource=0x1e71080) at shell.c:3715
#4  0x00000034b7a05cfc in ffi_call_unix64 () from /lib64/libffi.so.6
#5  0x00000034b7a0562c in ffi_call () from /lib64/libffi.so.6
#6  0x00007f8aad29ab68 in wl_closure_invoke (closure=0x1beeea0, flags=2, target=0x1e71080, opcode=3, data=0x1e6c440) at connection.c:927
#7  0x00007f8aad290411 in wl_client_connection_data (fd=42, mask=1, data=0x1e6c440) at wayland-server.c:332
#8  0x00007f8aad293c3e in wl_event_source_fd_dispatch (source=0x1e70cf0, ep=0x7fff741c1190) at event-loop.c:86
#9  0x00007f8aad2948b2 in wl_event_loop_dispatch (loop=0x1a17ec0, timeout=-1) at event-loop.c:421
#10 0x00007f8aad291a72 in wl_display_run (display=0x1a17e30) at wayland-server.c:961
#11 0x0000000000413d8c in main (argc=1, argv=0x7fff741c15f8) at compositor.c:4254
(gdb) bt full
#0  0x0000000000416196 in weston_keyboard_set_focus (keyboard=0x0, surface=0x1bed2d0) at input.c:690
        resource = 0x34b7a0562c <ffi_call+508>
        display = 0x1a17e30
        serial = 32767
        focus_resource_list = 0x1b782d8
#1  0x00007f8aa86a114d in restore_focus_state (shell=0x1b8dee0, ws=0x1b823e0) at shell.c:661
        state = 0x1bc74c0
        next = 0x1b823e8
        surface = 0x1bed2d0
#2  0x00007f8aa86a96e8 in resume_desktop (shell=0x1b8dee0) at shell.c:3699
        ws = 0x1b823e0
#3  0x00007f8aa86a977e in desktop_shell_unlock (client=0x1e6c440, resource=0x1e71080) at shell.c:3715
        shell = 0x1b8dee0
#4  0x00000034b7a05cfc in ffi_call_unix64 () from /lib64/libffi.so.6
No symbol table info available.
#5  0x00000034b7a0562c in ffi_call () from /lib64/libffi.so.6
No symbol table info available.
#6  0x00007f8aad29ab68 in wl_closure_invoke (closure=0x1beeea0, flags=2, target=0x1e71080, opcode=3, data=0x1e6c440) at connection.c:927
        count = 0
        ffi_types = {0x34b7a05fd0 <ffi_type_pointer>, 0x34b7a05fd0 <ffi_type_pointer>, 0x7fff741c0fb0, 0x0, 0x6e0000005b, 0x0, 0x0, 0x7c00000077, 
          0x7fff741c0faf, 0x40, 0x34b7a06030 <ffi_type_sint32>, 0x0, 0x7fff741c10c0, 0x7f8aad297f40 <wl_buffer_copy+121>, 0x3, 0x8, 0x1beef70, 
          0x1e940d0, 0xd8, 0xbd0004073a0, 0x7fff741c1020, 0x7f8aad29824c <wl_connection_copy+71>}
        implementation = 0x7f8aa88bc360 <desktop_shell_implementation>