Backtrace in this case
Thread 42 (Thread 0x7fff477fe640 (LWP 28145) "SIP"):
#0 0x00007ffff47baea0 in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007ffff47b37f1 in pthread_mutex_lock () from /lib64/libpthread.so.0
#2 0x0000000000a63ad2 in pj_mutex_lock ()
#3 0x00000000009eb114 in pjmedia_conf_remove_port ()
#4 0x0000000000989824 in pjsua_conf_remove_port ()
#5 0x0000000000988fec in pjsua_aud_stop_stream ()
#6 0x000000000097ee7b in stop_media_stream ()
#7 0x000000000097ff58 in pjsua_media_channel_update ()
#8 0x000000000096e289 in pjsua_call_on_media_update ()
#9 0x0000000000994bc6 in inv_negotiate_sdp ()
#10 0x0000000000995242 in inv_check_sdp_in_incoming_msg ()
#11 0x0000000000992357 in mod_inv_on_rx_request ()
#12 0x00000000009daaee in pjsip_dlg_on_rx_request ()
#13 0x00000000009dc6ec in mod_ua_on_rx_request ()
#14 0x00000000009ba2b3 in pjsip_endpt_process_rx_data ()
#15 0x00000000009ba5a6 in endpt_on_rx_msg ()
#16 0x00000000009c349c in pjsip_tpmgr_receive_packet ()
#17 0x00000000009c44f0 in udp_on_read_complete ()
#18 0x0000000000a6057e in ioqueue_dispatch_read_event ()
#19 0x0000000000a62462 in pj_ioqueue_poll ()
#20 0x0000000000972749 in worker_thread_ioqueue ()
#21 0x0000000000a63173 in thread_main ()
#22 0x00007ffff47b13f9 in start_thread () from /lib64/libpthread.so.0
#23 0x00007ffff3da2903 in clone () from /lib64/libc.so.6
in debug build deadlock detection is on
1207957056:SIP:ERROR:10:32:01.008 pjsua_call.c !.Timed-out trying to acquire dialog mutex (possibly system has deadlocked) in reinv_timer_cb()
1207957056:SIP:DEBUG:10:32:01.008 pjsua_core.c .TX 976 bytes Response msg 200/INVITE/cseq=228954190 (tdta0x7fff480210e8) to UDP 10.151.129.148:5060:
1207957056:SIP/2.0 200 OK#015
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