[asterisk-dev] Asterisk core dump SVN-branch-1.2-r38167M

[Martin Vít]

I've upgraded to the latest svn revision SVN-branch-1.2-r41069M

I've captured next segfault and found the source of it.

On channel OH323 were many spawned MixMonitor (due to some bad extension 
logic) with the same filename. But i thing, that this should be 
protected and not to cause segfault?

Latest lines in log with debug and verbose level 3

Aug 25 20:33:07 VERBOSE[21102] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 VERBOSE[21144] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 VERBOSE[21191] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 VERBOSE[21254] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 VERBOSE[21301] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 DEBUG[21024] channel.c: Spy MixMonitor removed from 
channel OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 DEBUG[21024] channel.c: Spy MixMonitor removed from 
channel OH323/VoiceGW2 at XX.XX.XX.XX-680429cd
Aug 25 20:33:07 VERBOSE[21034] logger.c:   == End MixMonitor Recording 
OH323/VoiceGW2 at XX.XX.XX.XX-680429cd

Full backtrace

Program terminated with signal 11, Segmentation fault.

(gdb) bt full
#0  0xb7e4f37d in free () from /lib/tls/libc.so.6
No symbol table info available.
#1  0xb7e50901 in calloc () from /lib/tls/libc.so.6
No symbol table info available.
#2  0xb646fdb7 in sip_alloc (callid=0xb67b9f1b 
"0263987dbe872bcae658de5b85e4a5ff at 172.24.45.73", sin=0xb67b9c00, 
useglobal_nat=1, intended_method=2) at chan_sip.c:3076
        p = (struct sip_pvt *) 0xb64b4460
        __PRETTY_FUNCTION__ = "sip_alloc"
#3  0xb649ffec in sipsock_read (id=0x81e4358, fd=37, events=1, 
ignore=0x0) at chan_sip.c:3233
        found = -1236588848
        req = {rlPart1 = 0xb67b9e28 "REGISTER", rlPart2 = 0xb67b9e31 
"sip:172.24.45.1:5060", len = 669, headers = 18, method = 2, header = 
{0xb67b9e28 "REGISTER",
    0xb67b9e4f "Via: SIP/2.0/UDP 
172.24.45.73:5060;branch=z9hG4bK8b4c1a1d2", 0xb67b9e8b "Max-Forwards: 
70", 0xb67b9e9d "Content-Length: 0",
    0xb67b9eb0 "To: tech <sip:tech at 172.24.45.1:5060>", 0xb67b9ed6 "From: 
tech <sip:tech at 172.24.45.1:5060>;tag=1d010005d5ee320",
    0xb67b9f12 "Call-ID: 0263987dbe872bcae658de5b85e4a5ff at 172.24.45.73", 
0xb67b9f4a "CSeq: 1298363890 REGISTER", 0xb67b9f65 "Contact: tech 
<sip:tech at 172.24.45.73:5060>",
    0xb67b9f91 "Allow: NOTIFY", 0xb67b9fa0 "Allow: REFER", 0xb67b9fae 
"Allow: OPTIONS", 0xb67b9fbe "Allow: INVITE", 0xb67b9fcd "Allow: ACK", 
0xb67b9fd9 "Allow: CANCEL",
    0xb67b9fe8 "Allow: BYE",
    0xb67b9ff4 "Authorization:Digest 
response=\"5fcc38a8fbd7a088915951507f53ab84\",username=\"tech\",realm=\"asterisk\",nonce=\"27627b02\",algorithm=MD5,uri=\"sip:172.24.45.1:5060\"", 
0xb67ba091 "User-Agent: Brcm Callctrl/1.5.1.1 MxSF/v3.2.6.26", 
0xb67ba0c3 "", 0x0 <repeats 45 times>}, lines = 0, line = {0xb67ba0c5 "",
    0x0 <repeats 63 times>},
  data = "REGISTER\000sip:172.24.45.1:5060\000SIP/2.0\000\000Via: 
SIP/2.0/UDP 
172.24.45.73:5060;branch=z9hG4bK8b4c1a1d2\000\000Max-Forwards: 
70\000\000Content-Length: 0\000\000To: tech 
<sip:tech at 172.24.45.1:5060>\000\000From: tech <sip:tech at 172.2"..., debug 
= 0, flags = 0, sdp_start = 0, sdp_end = 0}
        sin = {sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 
1227692204}, sin_zero = "\000\000\000\000\000\000\000"}
        res = -1236588848
        len = 16
        nounlock = 0
        recount = 0
        iabuf = '\0' <repeats 15 times>
        lockretry = 100
        __PRETTY_FUNCTION__ = "sipsock_read"
#4  0x08055c6f in ast_io_wait (ioc=0x81b9690, howlong=193) at io.c:284
        res = 1
        x = 0
        origcnt = 1
#5  0xb64a6834 in do_monitor (data=0x0) at chan_sip.c:11518
        res = 193
        sip = (struct sip_pvt *) 0x81b9690
        peer = (struct sip_peer *) 0x0
        t = 1156530791
        fastrestart = 0
        lastpeernum = -1
        curpeernum = 30
        reloading = 136025744
        __PRETTY_FUNCTION__ = "do_monitor"
#6  0xb7fd0ccd in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#7  0xb7eb9b0e in clone () from /lib/tls/libc.so.6
No symbol table info available.