Program terminated with signal 11, Segmentation fault.
#0  0xb7c448e3 in strchr () from /lib/libc.so.6
(gdb) bt
#0  0xb7c448e3 in strchr () from /lib/libc.so.6
#1  0x08171d0b in start_monitor_exec (chan=0x829b498, data=0xb6abb8f0) at res_monitor.c:455
#2  0x080d8fd7 in pbx_exec (c=0x829b498, app=0x82182b8, data=0xb6abb8f0) at pbx.c:596
#3  0x08164d1f in builtin_automonitor (chan=0x829b498, peer=0x82a05a0, config=0xb6abca00, code=0xb6abbd24 "*",
    sense=2, data=0x0) at res_features.c:705
#4  0x081676ae in ast_feature_interpret (chan=0x829b498, peer=0x82a05a0, config=0xb6abca00, code=0xb6abbd24 "*",
    sense=2) at res_features.c:1447
#5  0x081693c3 in ast_bridge_call (chan=0x829b498, peer=0x82a05a0, config=0xb6abca00) at res_features.c:1943
#6  0xb6b74faa in dial_exec_full (chan=0x829b498, data=0xb6abeec8, peerflags=0xb6abcd10, continue_exec=0x0)
    at app_dial.c:1775
#7  0xb6b75724 in dial_exec (chan=0x829b498, data=0xb6abeec8) at app_dial.c:1846
#8  0x080d8fd7 in pbx_exec (c=0x829b498, app=0x828baf8, data=0xb6abeec8) at pbx.c:596
#9  0x080dcb39 in pbx_extension_helper (c=0x829b498, con=0x0, context=0x829b6c8 "demo", exten=0x829b718 "11",
    priority=2, label=0x0, callerid=0x829b148 "laptop", action=E_SPAWN) at pbx.c:1906
#10 0x080deb8a in ast_spawn_extension (c=0x829b498, context=0x829b6c8 "demo", exten=0x829b718 "11", priority=2,
    callerid=0x829b148 "laptop") at pbx.c:2397
#11 0x080df0ba in __ast_pbx_run (c=0x829b498) at pbx.c:2496
#12 0x080e0448 in pbx_thread (data=0x829b498) at pbx.c:2752
#13 0x08125b2b in dummy_start (data=0x829b260) at utils.c:807
#14 0xb7d814bb in start_thread () from /lib/libpthread.so.0
#15 0xb7c9876e in clone () from /lib/libc.so.6