#0  0x401f8594 in __pthread_sigsuspend () from /lib/libpthread.so.0
#1  0x401f8358 in __pthread_wait_for_restart_signal () from /lib/libpthread.so.0
#2  0x401f9a6b in __pthread_lock () from /lib/libpthread.so.0
#3  0x401f6b5d in pthread_mutex_lock () from /lib/libpthread.so.0
#4  0x40712ae4 in pj_mutex_lock (mutex=0x827e778) at ../src/pj/os_core_unix.c:957
#5  0x406fb29d in pjsip_dlg_inc_lock (dlg=0x827e5bc) at ../src/pjsip/sip_dialog.c:691
#6  0x406fc5d8 in pjsip_dlg_on_rx_request (dlg=0x827e5bc, rdata=0x807ba54) at ../src/pjsip/sip_dialog.c:1274
#7  0x406fd8f8 in mod_ua_on_rx_request (rdata=0x807ba54) at ../src/pjsip/sip_ua_layer.c:562
#8  0x406ef05f in endpt_on_rx_msg (endpt=0x806323c, status=0, rdata=0x807ba54) at ../src/pjsip/sip_endpoint.c:834
#9  0x406f3ba4 in pjsip_tpmgr_receive_packet (mgr=0x80742ec, rdata=0x807ba54) at ../src/pjsip/sip_transport.c:1114
#10 0x406f414d in udp_on_read_complete (key=0x8067498, op_key=0x807ba60, bytes_read=367) at ../src/pjsip/sip_transport_udp.c:147
#11 0x40715194 in ioqueue_dispatch_read_event (ioqueue=0x8064204, h=0x8067498) at ioqueue_common_abs.c:483
#12 0x40716e83 in pj_ioqueue_poll (ioqueue=0x8064204, timeout=0xbefff9cc) at ../src/pj/ioqueue_select.c:745
#13 0x406eebe3 in pjsip_endpt_handle_events2 (endpt=0x806323c, max_timeout=0xbefffa1c, p_count=0x0) at ../src/pjsip/sip_endpoint.c:660
#14 0x406eecac in pjsip_endpt_handle_events (endpt=0x806323c, max_timeout=0xbefffa1c) at ../src/pjsip/sip_endpoint.c:687
#15 0x406e50f8 in switch_module_runtime () from /usr/local/freeswitch/mod/mod_pjsip.so
#16 0x4002e7fc in switch_loadable_module_exec (thread=0x4040afb0, obj=0x4040ada8) at src/switch_loadable_module.c:73
#17 0x400942f0 in dummy_worker () from /usr/local/freeswitch/lib/libapr-1.so.0
#18 0x401f5df1 in pthread_start_thread () from /lib/libpthread.so.0
#19 0x4031a5fa in clone () from /lib/libc.so.6