!@!@!@! thread1.txt !@!@!@! Thread 1 (Thread 0x7f1dc8121700 (LWP 6688)): #0 0x0000000000609d61 in ast_str_strlen (buf=0x0) at /usr/local/src/asterisk-13.19.0/include/asterisk/strings.h:701 No locals. #1 0x00007f1dcb5821e6 in handle_request_cancel (p=0x7f1d6c05d250, req=0x7f1dc81201c0) at chan_sip.c:27177 __PRETTY_FUNCTION__ = "handle_request_cancel" #2 0x00007f1dcb58aa89 in handle_incoming (p=0x7f1d6c05d250, req=0x7f1dc81201c0, addr=0x7f1dc8120130, recount=0x7f1dc81200dc, nounlock=0x7f1dc81200d8) at chan_sip.c:28908 cmd = 0x7f1d6c038588 "CANCEL" cseq = 0x7f1d6c0385ba "4 CANCEL" useragent = 0x7f1dcb5b52b4 "" via = 0x7f1d6c0385c8 "SIP/2.0/UDP 81.92.186.135:5060;branch=z9hG4bK49072983907700891512532" callid = 0x7f1d6c038656 "5b5f4a1b159cf2881b8f9f730579187c@138.201.140.216:5060" via_pos = 3 seqno = 4 len = 1 respid = -883206605 res = 0 e = 0x7f1d6c03858f "sip:103@138.201.140.216:5060" error = 0 oldmethod = 5 acked = 0 __PRETTY_FUNCTION__ = "handle_incoming" #3 0x00007f1dcb58b53e in handle_request_do (req=0x7f1dc81201c0, addr=0x7f1dc8120130) at chan_sip.c:29091 p = 0x7f1d6c05d250 owner_chan_ref = 0x0 recount = 0 nounlock = 0 __PRETTY_FUNCTION__ = "handle_request_do" #4 0x00007f1dcb58b113 in sipsock_read (id=0x7f1d6c0008f0, fd=21, events=1, ignore=0x0) at chan_sip.c:29022 req = {rlpart1 = 0, rlpart2 = 7, headers = 9, method = 14, lines = 0, sdp_start = 0, sdp_count = 0, debug = 0 '000', has_to_tag = 0 '000', ignore = 0 '000', authenticated = 0 '000', header = {0, 44, 59, 133, 197, 260, 308, 356, 374, 391, 0 }, line = {391, 0 }, data = 0x7f1d6c038570, content = 0x0, socket = {type = AST_TRANSPORT_UDP, fd = -1, port = 50195, tcptls_session = 0x0, ws_session = 0x0}, next = {next = 0x0}, reqsipoptions = 0} addr = {ss = {ss_family = 10, __ss_padding = "023304", '000' "377, 377Q\272207", '000' , __ss_align = 0}, len = 28} res = 402 readbuf = "CANCEL sip:103@138.201.140.216:5060 SIP/2.0rnCSeq: 4 CANCELrnVia: SIP/2.0/UDP 81.92.186.135:5060;branch=z9hG4bK49072983907700891512532rnFrom: ;tag=074929891512532r"... __PRETTY_FUNCTION__ = "sipsock_read" #5 0x0000000000538513 in ast_io_wait (ioc=0x30cf5f0, howlong=1000) at io.c:295 res = 1 x = 0 origcnt = 1 #6 0x00007f1dcb58d2b4 in do_monitor (data=0x0) at chan_sip.c:29668 res = 1000 t = 1518331818 reloading = 0 __PRETTY_FUNCTION__ = "do_monitor" #7 0x000000000060b3a9 in dummy_start (data=0x30dda50) at utils.c:1238 __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {0, -172737880280647652, 140732999272128, 139765887408576, 0, 3, -172737880322590692, 261735673624934428}, __mask_was_saved = 0}}, __pad = {0x7f1dc8120e30, 0x0, 0x0, 0x0}} __cancel_routine = 0x452975 __cancel_arg = 0x7f1dc8121700 not_first_call = 0 ret = 0x0 a = {start_routine = 0x7f1dcb58d076 , data = 0x0, name = 0x309f5d0 "do_monitor", ' ' , "started at [29701] chan_sip.c restart_monitor()"} #8 0x00007f1e6063faa1 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #9 0x00007f1e5f9c7bcd in clone () from /lib64/libc.so.6 No symbol table info available.