Hi, I am testing gnugk v2.2 beta5 on RedHat 9.0.I found it crash very often.Below is gdb back trace and level 5 log message. I also do testing on RedHat 7.3. But I don't see the same crash.Which linux OS is bestfor GnuGK? best regards,Daniel (gdb) bt#0 0x08454b77 in P_fd_set::operator+=(int) (this=0x931ff26c, fd=56863601) at ../common/sockets.cxx:1317#1 0x0848219f in PThread::PXBlockOnIO(int, int, PTimeInterval const&) (this=0x8f16d88, handle=62, type=0, timeout=@0x86d2084) at tlibthrd.cxx:1343#2 0x08469b74 in PChannel::PXSetIOBlock(PChannel::PXBlockType, PTimeInterval const&) ( this=0x86d2048, type=PXReadBlock, timeout=@0x86d2084) at channel.cxx:239#3 0x0845b4f9 in PSocket::os_recvfrom(void*, int, int, sockaddr*, int*) (this=0x86d2048, buf=0x8f5dd30, len=4096, flags=0, addr=0x931ff390, addrlen=0x931ff36c) at socket.cxx:776#4 0x084585de in PIPDatagramSocket::ReadFrom(void*, int, PIPSocket::Address&, unsigned short&) ( this=0x86d2048, buf=0x8f5dd30, len=4096, addr=@0x931ff4a8, port=@0x8f52790) at ../common/sockets.cxx:708#5 0x08111e99 in RadiusSocket::MakeRequest(RadiusPDU const*, PIPSocket::Address const&, unsigned short, RadiusPDU*&) (this=0x86d2048, request=0x8f5a1f8, serverAddress=@0x931ff5a8, serverPort=1812, pdu=@0x1c) at radproto.cxx:1589#6 0x08114f2d in RadiusClient::MakeRequest(RadiusPDU const&, RadiusPDU*&) (this=0x86c1418, requestPDU=@0x8f54730, responsePDU=@0x1c) at radproto.cxx:2110#7 0x08117d60 in RadAuthBase::Check(RasPDU<H225_RegistrationRequest>&, GkAuthenticator::RRQAuthData&) (this=0x86c17a8, rrqPdu=@0x8bed030, authData=@0x931ff8d4) at radauth.cxx:295#8 0x080c5920 in GkAuthenticatorList::Validate(RasPDU<H225_RegistrationRequest>&, GkAuthenticator::RRQAuthData&) (this=0x86be440, request=@0x8bed030, authData=@0x931ff8d4) at gkauth.cxx:1136#9 0x080d7301 in RegistrationRequestPDU::Process() (this=0x8bed030) at RasSrv.h:134#10 0x080d09b3 in RasMsg::Exec() (this=0x8bed030) at RasSrv.cxx:313#11 0x0807acdf in Jobs::Run() (this=0x8bed160) at job.cxx:444#12 0x0807943d in Worker::Main() (this=0x8f16d88) at job.cxx:190#13 0x08481fda in PThread::PX_ThreadStart(void*) (arg=0x8f16d88) at tlibthrd.cxx:1262#14 0x400856de in pthread_start_thread () from /lib/libpthread.so.0
al 118/22004/10/11 18:35:05.572 5 yasocket.cxx(699) ProxyRTP(0) 2 sockets selected from 118, total 118/22004/10/11 18:35:05.572 5 yasocket.cxx(699) ProxyRTP(0) 1 sockets selected from 118, total 118/22004/10/11 18:53:41.811 0 assert.cxx(108) PWLib Assertion fail: Operating System error, file tlibthrd.cxx, line 734, Error=242004/10/11 18:54:22.146 0 assert.cxx(108) PWLib Assertion fail: Invalid parameter, file ../common/sockets.cxx, line 1316 ??????????????????????甸殜X?矈辵?!3搿蹨磌?!3潹h汗跁K!:k≯湺颧蕥玭?濍,??叓r㈦a妝(~豝涶⒔氍b嫬:槯妷禳g?窞Ng瀽h煷''鈗玘仇?▲嫮殜迒踚?楫噉r?壸?贇潹韬冠楓(涾.壸┊墾?????????????????????+-^?鲛 ?谦躇b槽?嫬q玷??隌b斤岫??(悍~娻{幅殜V玶瘂麒??婎涾濘z&z枲{鴐稛?0?顐O?