[UBUNTU] ~/wayland/install/share/elementary/examples $ ELM_ENGINE=wayland_egl gdb ./layout_example_01 
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/jbkonno/wayland/install/share/elementary/examples/layout_example_01...done.
(gdb) start
Temporary breakpoint 1 at 0x4012d0: file layout_example_01.c, line 150.
Starting program: /home/jbkonno/wayland/install/share/elementary/examples/layout_example_01 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Temporary breakpoint 1, main (argc=1, argv=0x7fffffffe428)
    at layout_example_01.c:150
150	ELM_MAIN()
(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
eng_image_cache_flush (data=0x0) at evas_engine.c:1881
1881	   evas_gl_common_image_cache_flush(re->win->gl_context);
(gdb) bt full
#0  eng_image_cache_flush (data=0x0) at evas_engine.c:1881
        re = 0x0
        tmp_size = 4194304
#1  0x00007ffff7851ca6 in _elm_win_smart_del (obj=0x7b5650) at elm_win.c:1126
        sd = 0x79af50
#2  0x00007ffff7b02b45 in evas_object_smart_del (obj=0x7b5650)
    at evas_object_smart.c:759
        s = 0x7dad50
#3  0x00007ffff7af650f in evas_object_del (obj=0x7b5650)
    at evas_object_main.c:442
No locals.
#4  0x00007ffff5aad20c in _edje_emit_cb (prop=0 '\000', data=<optimized out>, 
    src=0x7b3fc0 "elm", sig=0x7a428c "elm,action,close", ed=0xd218b0)
    at edje_program.c:1322
        escb = <optimized out>
        match = <optimized out>
        l2 = 0xf11c60
        r = <optimized out>
        l = <optimized out>
#5  _edje_emit_handle (ed=0xd218b0, sig=0x7a428c "elm,action,close", 
    src=0x7b3fc0 "elm", sdata=<optimized out>, prop=0 '\000')
    at edje_program.c:1257
        done = 0
#6  0x00007ffff5aa8e87 in _edje_message_queue_process ()
    at edje_message_queue.c:764
        em = 0x10607c0
        ed = 0xd218b0
        i = <optimized out>
        __FUNCTION__ = "_edje_message_queue_process"
#7  0x00007ffff5aa9027 in _edje_job (data=<optimized out>)
    at edje_message_queue.c:160
No locals.
#8  0x00007ffff611aacb in _ecore_job_event_handler (data=<optimized out>, 
    type=<optimized out>, ev=<optimized out>) at ecore_job.c:115
        job = <optimized out>
#9  0x00007ffff61176c0 in _ecore_call_handler_cb (event=<optimized out>, 
    type=<optimized out>, data=<optimized out>, func=<optimized out>)
    at ecore_private.h:319
        r = <optimized out>
#10 _ecore_event_call () at ecore_events.c:559
        ret = 0 '\000'
        e = 0xe701d0
        handle_count = 1
        l = <optimized out>
        eh = 0x6205d0
#11 0x00007ffff611bb3c in _ecore_main_loop_iterate_internal (once_only=0)
    at ecore_main.c:1814
        next_time = <optimized out>
#12 0x00007ffff611c007 in ecore_main_loop_begin () at ecore_main.c:931
No locals.
#13 0x0000000000401865 in elm_main (argc=<optimized out>, argv=<optimized out>)
    at layout_example_01.c:145
        win = 0x7b5650
        bg = 0xde5aa0
        icon = <optimized out>
        icon2 = <optimized out>
        bt = <optimized out>
        bt2 = 0xe6ef30
        layout = 0xde6cc0
        clk = <optimized out>
        item = <optimized out>
        buf = "/usr/local/share/elementary/examples/layout_example.edj\000\206\002", '\000' <repeats 30 times>"\300, \276\324\361\377\177\000\000\020\323\377\377\377\177\000\000\065\362\336\367\377\177\000\000N\005\000\000\000\000\000\000\016\000\000\000\021\000\000\000\336\000\000\000\000\000\000\000\240\024\244\365\377\177\000\000\360\341\377\377\377\177\000\000\320\332\377\377\377\177\000\000 \344\377\377\377\177", '\000' <repeats 18 times>"\225, X\203\365\377\177\000\000\356\177\203\365\377\177\000\000\363\177\203\365\377\177\000\000\270\177\203\365\377\177\000\000\374\177\203\365\377\177\000\000\313\177\203\365\377\177\000\000\301\177\203\365\377\177\000\000\306\177\203\365\377\177\000\000_\203\203\365\377\177\000\000ώ\203\365\377\177\000\000\006\200\203\365\377\177\000\000\017\200\203\365\377\177\000\000)\200\203\365\377\177\000\000\067\200\203\365\377\177\000\000A\200\203\365\377\177\000\000K\200\203\365\377\177\000\000X\200\203\365\377\177\000\000e\200\203\365\377\177\000\000t\200\203\365\377\177\000\000\203\200\203\365\377\177"...
        title = <optimized out>
#14 0x00007ffff71a676d in __libc_start_main ()
   from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#15 0x0000000000401319 in _start ()
No symbol table info available.