Got the backtrace. Here is the contents of the .txt file.
I’m not really sure what it’s saying, but this is it. If there is more needed let me know.
> GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
> Copyright (C) 2014 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i686-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from asterisk...done.
> [New LWP 23871]
> [New LWP 23845]
> [New LWP 23856]
> [New LWP 23850]
> [New LWP 23843]
> [New LWP 23872]
> [New LWP 23844]
> [New LWP 23873]
> [New LWP 23846]
> [New LWP 23847]
> [New LWP 23842]
> [New LWP 23848]
> [New LWP 23849]
> [New LWP 23851]
> [New LWP 23852]
> [New LWP 23862]
> [New LWP 23853]
> [New LWP 23854]
> [New LWP 23855]
> [New LWP 23857]
> [New LWP 23858]
> [New LWP 23859]
> [New LWP 23860]
> [New LWP 23861]
> [New LWP 23863]
> [New LWP 23864]
> [New LWP 23865]
> [New LWP 23866]
> [New LWP 23867]
> [New LWP 23868]
> [New LWP 23869]
> [New LWP 23870]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
> Core was generated by `asterisk -vvvvvg -c'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0 0xb6284c69 in handle_response_peerpoke (p=0xb6d05578, resp=200, req=0xb5565c34) at chan_sip.c:25678
> 25678 alias->peer->lastms = pingtime;
> (gdb) bt
> #0 0xb6284c69 in handle_response_peerpoke (p=0xb6d05578, resp=200, req=0xb5565c34) at chan_sip.c:25678
> #1 0xb6286069 in handle_response (p=0xb6d05578, resp=200, rest=0xb6d096d0 "OK", req=0xb5565c34, seqno=101) at chan_sip.c:25954
> #2 0xb62a6994 in handle_incoming (p=0xb6d05578, req=0xb5565c34, addr=0xb5566178, recount=0xb5565bc8, nounlock=0xb5565bcc) at chan_sip.c:32515
> #3 0xb62a8118 in handle_request_do (req=0xb5565c34, addr=0xb5566178) at chan_sip.c:32825
> #4 0xb62a7cd8 in sipsock_read (id=0xb6d00698, fd=8, events=1, ignore=0x0) at chan_sip.c:32756
> #5 0x08161088 in ast_io_wait (ioc=0x9942658, howlong=0) at io.c:295
> #6 0xb62acb3b in do_monitor (data=0x0) at chan_sip.c:33721
> #7 0x0822464f in dummy_start (data=0x9a05be8) at utils.c:1235
> #8 0xb72e3f72 in start_thread (arg=0xb5566b40) at pthread_create.c:312
> #9 0xb7198f8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
> (gdb) bt full
> #0 0xb6284c69 in handle_response_peerpoke (p=0xb6d05578, resp=200, req=0xb5565c34) at chan_sip.c:25678
> alias = 0x9a18eb0
> peer = 0x9a17dc0
> statechanged = 1
> is_reachable = 1
> was_reachable = 0
> pingtime = 70
> status = 0xb62e5214 "Reachable"
> lastms = "70\000\000\000\000\000\000\340rжPeжj\006\000"
> __PRETTY_FUNCTION__ = "handle_response_peerpoke"
> #1 0xb6286069 in handle_response (p=0xb6d05578, resp=200, rest=0xb6d096d0 "OK", req=0xb5565c34, seqno=101) at chan_sip.c:25954
> owner = 0x0
> sipmethod = 3
> c = 0xb6d097f9 "101 OPTIONS"
> c_copy = 0xb5565780 "101 OPTIONS"
> msg = 0xb5565784 "OPTIONS"
> ack_res = 1
> __PRETTY_FUNCTION__ = "handle_response"
> #2 0xb62a6994 in handle_incoming (p=0xb6d05578, req=0xb5565c34, addr=0xb5566178, recount=0xb5565bc8, nounlock=0xb5565bcc) at chan_sip.c:32515
> cmd = 0xb6d096c4 "SIP/2.0"
> cseq = 0xb6d097f9 "101 OPTIONS"
> useragent = 0xb62d5c50 ""
> via = 0xb6d096d8 "SIP/2.0/UDP 192.168.4.53:5060;branch=z9hG4bK65fa0991"
> callid = 0xb6d0979c "11ce894c6ca95aee2af49651393d4d63@192.168.4.53:5060"
> via_pos = 2
> seqno = 101
> len = 4
> respid = 200
> res = 0
> e = 0xb6d096cc "200 OK"
> error = 0
> oldmethod = 3
> acked = 0
> __PRETTY_FUNCTION__ = "handle_incoming"
> #3 0xb62a8118 in handle_request_do (req=0xb5565c34, addr=0xb5566178) at chan_sip.c:32825
> p = 0xb6d05578
> owner_chan_ref = 0x0
> recount = 0
> nounlock = 0
> __PRETTY_FUNCTION__ = "handle_request_do"
> #4 0xb62a7cd8 in sipsock_read (id=0xb6d00698, fd=8, events=1, ignore=0x0) at chan_sip.c:32756
> req = {rlpart1 = 0, rlpart2 = 8, headers = 17, method = 1, lines = 13, sdp_start = 0, sdp_count = 0, debug = 0 '\000', has_to_tag = 1 '\001', ignore = 0 '\000', authenticated = 0 '\000', header = {
> 0, 15, 73, 122, 207, 267, 303, 321, 349, 415, 447, 509, 535, 555, 783, 803, 833, 880, 0 <repeats 46 times>}, line = {881, 885, 928, 939, 945, 980, 1001, 1022, 1044, 1064, 1087, 1108, 1142,
> 0 <repeats 243 times>}, data = 0xb6d096b8, 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 = 2, __ss_align = 3691292864,
> __ss_padding = "\000\000\000\000\000\000\000\000\250aV\265 \254\t\b\000\000\000\000\240U\237\t\200U\237\t0`.\267\266u$\b@kV\265\030bV\265\f\303\t\b\260U\237\t\001\000\000\000\063v$\b0`.\267P\001\000\000Gv$\b\000\000\000\000\300p.\267P^\237\t\000\000\000\000\000\340/\266\030bV\265\000\340/\266@kV\265\000\000\000\000\062\215\026\bP^\237\tXbV\265"}, len = 16}
> res = 1189
> readbuf = "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP 192.168.4.53:5060;branch=z9hG4bK65fa0991\r\nFrom: <sip:asterisk@192.168.4.53>;tag=as043def4d\r\nTo: <sip:101@192.168.4.220:5060;transport=udp>;tag=00131a59225500211dcffd4b"...
> __PRETTY_FUNCTION__ = "sipsock_read"
> #5 0x08161088 in ast_io_wait (ioc=0x9942658, howlong=0) at io.c:295
> res = 1
> x = 0
> origcnt = 1
> #6 0xb62acb3b in do_monitor (data=0x0) at chan_sip.c:33721
> res = 0
> t = 1480949494
> reloading = 0
> __PRETTY_FUNCTION__ = "do_monitor"
> #7 0x0822464f in dummy_start (data=0x9a05be8) at utils.c:1235
> __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1221632000, -1252627648, 0, -1252629736, 1817678870, -2078356628}, __mask_was_saved = 0}}, __pad = {0xb5566350, 0x0, 0x0, 0x0}}
> __cancel_routine = 0x808eeb7 <ast_unregister_thread>
> __cancel_arg = 0xb5566b40
> __not_first_call = 0
> ret = 0x0
> a = {start_routine = 0xb62ac8b1 <do_monitor>, data = 0x0, name = 0x9a05bf8 "do_monitor", ' ' <repeats 11 times>, "started at [33754] chan_sip.c restart_monitor()"}
> #8 0xb72e3f72 in start_thread (arg=0xb5566b40) at pthread_create.c:312
> __res = <optimized out>
> pd = 0xb5566b40
> now = <optimized out>
> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1221632000, -1252627648, 4001536, -1252629528, 1817482262, -1662219758}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0,
> cleanup = 0x0, canceltype = 0}}}
> not_first_call = <optimized out>
> pagesize_m1 = <optimized out>
> sp = <optimized out>
> freesize = <optimized out>
> __PRETTY_FUNCTION__ = "start_thread"
> #9 0xb7198f8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
> No locals.
> (gdb) thread apply all bt
> Thread 32 (Thread 0xb55c0b40 (LWP 23870)):
> #0 0xb7773cf9 in ?? ()
> #1 0x0820f9fa in default_tps_processing_function (data=0x9a07578) at taskprocessor.c:178
> #2 0x0822464f in dummy_start (data=0x99d4a38) at utils.c:1235
> #3 0xb72e3f72 in start_thread (arg=0xb55c0b40) at pthread_create.c:312
> #4 0xb7198f8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
> Thread 31 (Thread 0xb55fcb40 (LWP 23869)):
> #0 0xb7773cf9 in ?? ()
> #1 0xb5ff04de in do_monitor (data=0x0) at chan_mgcp.c:3928
> #2 0x0822464f in dummy_start (data=0x994ab00) at utils.c:1235
> #3 0xb72e3f72 in start_thread (arg=0xb55fcb40) at pthread_create.c:312
> #4 0xb7198f8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
> Thread 30 (Thread 0xb5638b40 (LWP 23868)):
> #0 0xb7773cf9 in ?? ()
> (gdb) quit