#0  0x00007f5568c3d1d7 in raise () from /lib64/libc.so.6
#1  0x00007f5568c3e8c8 in abort () from /lib64/libc.so.6
#2  0x00007f5568c7cf07 in __libc_message () from /lib64/libc.so.6
#3  0x00007f5568c84503 in _int_free () from /lib64/libc.so.6
#4  0x0000000000523dff in __frame_free (cache=1, fr=0x7f554c00c6e0)
    at frame.c:157
#5  ast_frame_free (frame=frame@entry=0x7f554c00c6e0, cache=cache@entry=1)
    at frame.c:171
#6  0x00000000005f3491 in ast_translate (path=0x7f554c021330, 
    f=f@entry=0x7f554c00c6e0, consume=consume@entry=1) at translate.c:626
#7  0x00000000004c1b2d in __ast_read (chan=0x7f552801f298, 
    dropaudio=dropaudio@entry=0) at channel.c:4315
#8  0x00000000004c1ed7 in ast_read (chan=<optimized out>) at channel.c:4398
#9  0x000000000048342f in bridge_handle_trip (bridge_channel=0x7f554c00cf98)
    at bridge_channel.c:2431
#10 bridge_channel_wait (bridge_channel=0x7f554c00cf98)
    at bridge_channel.c:2611
#11 bridge_channel_internal_join (
    bridge_channel=bridge_channel@entry=0x7f554c00cf98)
    at bridge_channel.c:2757
#12 0x000000000046d47e in ast_bridge_join (bridge=0x7f553c005058, 
    chan=chan@entry=0x7f552801f298, swap=swap@entry=0x0, 
    features=features@entry=0x7f556739c538, 
    tech_args=tech_args@entry=0x7f556739c560, flags=flags@entry=(unknown: 0))
    at bridge.c:1715
#13 0x00007f54e83f58de in confbridge_exec (chan=0x7f552801f298, 
    data=<optimized out>) at app_confbridge.c:2448
#14 0x00000000005895a6 in pbx_exec (c=c@entry=0x7f552801f298, 
    app=app@entry=0x28df9a0, 
    data=data@entry=0x7f556739cb20 "206,,,default_menu") at pbx_app.c:491
#15 0x000000000057d9f9 in pbx_extension_helper (c=c@entry=0x7f552801f298, 
    context=0x7f552801fc68 "Conferences", 
    exten=exten@entry=0x7f552801fcb8 "206", priority=priority@entry=5, 
    label=label@entry=0x0, callerid=callerid@entry=0x7f552804d0a0 "150", 
    action=action@entry=E_SPAWN, found=found@entry=0x7f556739eba0, 
    combined_find_spawn=combined_find_spawn@entry=1, con=0x0) at pbx.c:2923
#16 0x000000000057f903 in ast_spawn_extension (combined_find_spawn=1, 
    found=0x7f556739eba0, callerid=0x7f552804d0a0 "150", priority=5, 
    exten=0x7f552801fcb8 "206", context=<optimized out>, c=0x7f552801f298)
    at pbx.c:4154
#17 __ast_pbx_run (c=c@entry=0x7f552801f298, args=args@entry=0x0)
    at pbx.c:4328
#18 0x0000000000580e23 in pbx_thread (data=data@entry=0x7f552801f298)
    at pbx.c:4650
#19 0x00000000005f917a in dummy_start (data=<optimized out>) at utils.c:1233
#20 0x00007f5569a3fdc5 in start_thread () from /lib64/libpthread.so.0