Vig, could you please try to reproduce the problem with the current ntop version that's on CVS?
Thanks, Luca vigilant wrote: >To All, > >I'm having a problem with ntop 2.1.2 segfaulting on a Linux machine (ntop >2.1.2 built from source, kernel 2.2.12, glibc 2.1.2, egcs 1.1.2/2.91.66, >libpcap 0.7.1, 64 megs ram, single proc PII 300, 2 3com 3c59x cards, >monitoring pub/private network, 1.5 Mbps T1, 40 workstations on internal >network, redhat 6.1). This generally happens within a few minutes to a >few hours, but in some cases I've been able to run for as long as a few >days. This is a very lightly loaded system with little else running >(secondary dns, pptp server). I too appear to be having the free of null >pointer issue. I tried a recent ntop snapshot, but after a few days it >became a runaway process and eventually pushed the load on the machine to >nearly 3. I've been able to make use of numerous other apps that make use >of libpcap (darkstat, iptraf, tcpdump) over extended periods without >incident. > >The options "./configure --disable-plugins --disable-ssl" were used > >The debug shows the following: > >Sep 9 23:17:00 grover ntop[14124]: Initializing IP services... >Sep 9 23:17:00 grover ntop[14124]: Initializing GDBM... >Sep 9 23:17:00 grover ntop[14125]: Bye bye: I'm becoming a daemon... >Sep 9 23:17:00 grover ntop[14125]: Initializing network devices... >Sep 9 23:17:00 grover ntop[14125]: ntop v.2.1.2 MT [i686-pc-linux-gnu] >(09/09/02 11:11:29 PM build) >Sep 9 23:17:00 grover ntop[14125]: Listening on [eth1] >Sep 9 23:17:00 grover ntop[14125]: Copyright 1998-2002 by Luca Deri ><[EMAIL PROTECTED]> >Sep 9 23:17:00 grover ntop[14125]: Get the freshest ntop from >http://www.ntop.org/ >Sep 9 23:17:00 grover ntop[14125]: Initializing... >Sep 9 23:17:00 grover ntop[14125]: Truncated network size to 1024 hosts >(real netmask 255.255.0.0) >Sep 9 23:17:00 grover ntop[14125]: Loading plugins (if any)... >Sep 9 23:17:00 grover ntop[14125]: WARNING: Unable to find the plugins/ >directory. >Sep 9 23:17:00 grover ntop[14125]: WARNING: Discarded network >10.1.0.0/16: this is the local network. >Sep 9 23:17:00 grover ntop[14125]: Resetting traffic statistics... >Sep 9 23:17:01 grover ntop[14125]: Started thread (1026) for network >packet analyser. >Sep 9 23:17:01 grover ntop[14125]: Started thread (2051) for idle hosts >detection. >Sep 9 23:17:01 grover ntop[14125]: Started thread (3076) for DNS address >resolution. >Sep 9 23:17:01 grover ntop[14125]: Started thread (4101) for address >purge. >Sep 9 23:17:01 grover ntop[14125]: Initializing plugins (if any)... >Sep 9 23:17:01 grover ntop[14125]: Waiting for HTTP connections on port >1865... >Sep 9 23:17:01 grover ntop[14125]: Started thread (5126) for web server. >Sep 9 23:17:01 grover ntop[14125]: Sniffying... >Sep 9 23:17:01 grover ntop[14125]: Started thread (6151) for network >packet sniffing on eth1. >Sep 9 23:17:05 grover ntop[14132]: Extending hash size >[newSize=512][deviceId=0] >Sep 9 23:29:26 grover ntop[14132]: ntop caught signal 11 >Sep 9 23:29:26 grover ntop[14132]: *****ntop error: Signal(11) >Sep 9 23:29:26 grover ntop[14132]: backtrace is: >Sep 9 23:29:26 grover ntop[14132]: 1. >/lib/libc.so.6(sigaction+0x268) [0x403f8408] >Sep 9 23:29:26 grover ntop[14132]: 2. >/usr/local/lib/libntop-2.1.so.2(_checkSessionIdx+0x1d8) [0x40160598] >Sep 9 23:29:26 grover ntop[14132]: 3. >/usr/local/lib/libntop-2.1.so.2(scanTimedoutTCPSessions+0x26c1) >[0x401631f1] >Sep 9 23:29:26 grover ntop[14132]: 4. >/usr/local/lib/libntop-2.1.so.2(handleTCPSession+0x48) [0x40164338] >Sep 9 23:29:26 grover ntop[14132]: 5. >/usr/local/lib/libntop-2.1.so.2(updateHostName+0x103e) [0x40158b0e] >Sep 9 23:29:26 grover ntop[14132]: 6. >/usr/local/lib/libntop-2.1.so.2(processPacket+0x1b1a) [0x4015c672] >Sep 9 23:29:26 grover ntop[14132]: 7. >/usr/local/lib/libntop-2.1.so.2(pcap_read+0x1ca) [0x4016c35e] >Sep 9 23:29:26 grover ntop[14132]: 8. >/usr/local/lib/libntop-2.1.so.2(pcap_read+0x11) [0x4016c1a5] >Sep 9 23:29:26 grover ntop[14132]: 9. >/usr/local/lib/libntop-2.1.so.2(pcap_dispatch+0x1f) [0x4016d0af] >Sep 9 23:29:26 grover ntop[14132]: 10. >/usr/local/lib/libntop-2.1.so.2(pcapDispatch+0x145) [0x40155291] >Sep 9 23:29:26 grover ntop[14132]: 11. >/lib/libpthread.so.0(pthread_detach+0x492) [0x403a4eca] >Sep 9 23:29:26 grover ntop[14132]: 12. >/lib/libc.so.6(__clone+0x3a) [0x4048a39a] >Sep 9 23:29:26 grover ntop[14132]: Cleaning up... >Sep 9 23:29:26 grover ntop[14132]: Waiting until threads terminate... >Sep 9 23:29:29 grover ntop[14132]: Freeing hash host instances... (1 >device(s) to save) >Sep 9 23:29:30 grover ntop[14131]: Terminating Web connections... >Sep 9 23:29:30 grover ntop[14132]: WARNING: free of NULL pointer @ >hash.c:272 > > >-Vig > >_______________________________________________ >Ntop mailing list >[EMAIL PROTECTED] >http://lists.ntop.org/mailman/listinfo/ntop > > -- Luca Deri <[EMAIL PROTECTED]> http://luca.ntop.org/ Hacker: someone who loves to program and enjoys being clever about it - Richard Stallman _______________________________________________ Ntop mailing list [EMAIL PROTECTED] http://lists.ntop.org/mailman/listinfo/ntop
