Thread 139 (Thread -1235481680 (LWP 1428)):
#0  0x008ab7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x0016c1ce in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
#2  0x00169fdb in pthread_cond_signal@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0
#3  0x005e9c81 in apr_thread_cond_signal () from /usr/local/freeswitch/lib/libapr-1.so.0
#4  0x00f27add in switch_core_session_signal_state_change (session=0xb2e22300) at src/switch_core.c:2494
#5  0x00f2150a in switch_channel_perform_hangup (channel=0xb2e246b8, file=0x1e0410 "mod_sofia.c",
    func=0x1e054d "terminate_session", line=383, hangup_cause=SWITCH_CAUSE_NORMAL_UNSPECIFIED) at src/switch_channel.c:878
#6  0x001dbe04 in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#7  0xb2e246b8 in ?? ()
#8  0x001e0410 in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#9  0x001e054d in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#10 0x0000017f in ?? ()
#11 0x0000001f in ?? ()
#12 0xaeeb7100 in ?? ()
#13 0x000005c7 in ?? ()
#14 0x001dbd54 in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#15 0xb2e24bcc in ?? ()
#16 0xaeeafec0 in ?? ()
#17 0xb2e249d0 in ?? ()
#18 0x00000004 in ?? ()
#19 0xb2e246b8 in ?? ()
#20 0x001e2458 in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#21 0xb65c02f8 in ?? ()
#22 0x001def0e in ?? () from /usr/local/freeswitch/mod/mod_sofia.so
#23 0xb65c0314 in ?? ()
#24 0x0000001f in ?? ()
#25 0x000005c7 in ?? ()
#26 0x00306c10 in __PRETTY_FUNCTION__.1 () from /usr/local/freeswitch/lib/libsofia-sip-ua.so.0
#27 0x00f4d18a in __FUNCTION__.3 () from /usr/local/freeswitch/lib/libfreeswitch.so.1
#28 0x0000008b in ?? ()
#29 0x66a38e55 in ?? ()
#30 0x00000007 in ?? ()
#31 0x00925fea in free () from /lib/tls/libc.so.6
Previous frame inner to this frame (corrupt stack?)