On 2011-08-16 14:48 +0200, Jan Willamowius wrote openh323gk-users@xxxxxxxxx...:
JW>Hi Yuriy,
JW>
JW>the crashing line is almost unchanged from the code you submitted in
JW>2009. Its crashing in the strcmp() that compares the media IP to the
JW>fromIP. Since the fromIP looks ok fine your core dump, maybe the media
JW>IP gets changed that instant and we need a lock to fix that race
JW>condition ?
Hi Jan, may be, but it's random issue and i cannot simply reproduce this to
make trace/dumps to see what exactly happends. the best we can - try lock and
see is it steel crashes or not.
JW>
JW>Regards,
JW>Jan
JW>
JW>
JW>Georgiewskiy Yuriy wrote:
JW>> hm, we use patch fo codec details which seems affect ProxyChannel.cxx line numbers,
JW>> it is in ProxySocket::Result UDPProxySocket::ReceiveData():
JW>>
JW>> if (isRTCP && m_call && (*m_call) && m_EnableRTCPStats) {
JW>> bool direct = ((*m_call)->GetSRC_media_control_IP() == fromIP.AsString()); <-5650 line
JW>> PIPSocket::Address addr = (DWORD)0;
JW>> (*m_call)->GetMediaOriginatingIp(addr);
JW>> if (buflen < 4) {
JW>> PTRACE(1, "RTCP\tInvalid RTCP frame");
JW>> return NoData;
JW>> }
JW>>
JW>>
JW>> JW>> (gdb) bt
JW>> JW>> #0 0x00007fbcd7fb5126 in ?? () from /lib/libc.so.6
JW>> JW>> #1 0x00007fbcdaab56dc in PString::InternalCompare (this=0x7fbcd4116a50, offset=0, length=2147483647, cstr=0x7fbccc0f7950 "91.210.104.61")
JW>> JW>> at ptlib/common/contain.cxx:1268
JW>> JW>> #2 0x00007fbcdaab48f2 in PString::Compare (this=0x7fbcd4116a50, obj=...) at ptlib/common/contain.cxx:970
JW>> JW>> #3 0x00000000004b8dee in PObject::operator== (this=0x7fbcd4116a50, obj=...) at /usr/local/src/ptlib-2.8.4/include/ptlib/object.h:1162
JW>> JW>> #4 0x00007fbcdaaaf57b in PString::operator== (this=0x7fbcd4116a50, obj=...) at /usr/local/src/ptlib-2.8.4/include/ptlib/contain.inl:117
JW>> JW>> #5 0x0000000000569c36 in UDPProxySocket::ReceiveData (this=0x19fbf70) at ProxyChannel.cxx:5650
JW>
JW>
C уважением With Best Regards
Георгиевский Юрий. Georgiewskiy Yuriy
+7 4872 711666 +7 4872 711666
факс +7 4872 711143 fax +7 4872 711143
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