That might be what it is. I compiled a pre-NTPL 2.4.x kernel. Im going to compile 2.6 and give it a go. Bridge is built into it anyway so it should be easier. Lucky for my my helper is a kernel hacker :P
Thanks for all your help ~Rob -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Burton Strauss Sent: Friday, March 18, 2005 11:54 AM To: [email protected] Subject: RE: [Ntop] Segmentation Fault Well, the only way things work is if we help each other. Yes, that puts a lot of onus on you. This list offers help, but it's 'self help'. If you want/need more than that, then consider paid support: contact me off-list. That reads like a basic problem with shared libraries and/or gdb. You're never even getting into ntop. Google for "Cannot find new threads: generic error" shows a bunch of errors. Reading between the lines, I think the gist of them is a mismatch between the version of gdb and the installed libraries (i.e. a pre-NPTL gdb w/ an NTPL glibc) (or an NPTL gdb w/ a pre-NTPL glibc). So: Have your helper / sysadmin update gdb to the latest and greatest version for your OS. I'm running this on my Fedora 2 box: $ gdb --version GNU gdb Red Hat Linux (6.0post-0.20040223.19rh) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu". But most versions should run - just make sure that it's in sync with glibc (and thus the threading library). Then try running ntop under gdb again. -----Burton -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Gil Sent: Friday, March 18, 2005 10:18 AM To: [email protected] Subject: RE: [Ntop] Segmentation Fault Correction...... Not really a C programmer. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Gil Sent: Friday, March 18, 2005 11:17 AM To: [email protected] Subject: RE: [Ntop] Segmentation Fault Unfortunately im not really a programmer, however I had someone help me run gdb on it. This is the error it returns... Dig also fails with a similar error. Starting program: /usr/local/bin/ntop /usr/local/bin/ntop [Thread debugging using libthread_db enabled] Error while reading shared library symbols: Cannot find new threads: generic error This is with the CVS version of ntop running on redhat ES 3. Tcpdump work fine. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Burton Strauss Sent: Friday, March 18, 2005 10:36 AM To: [email protected] Subject: RE: [Ntop] Segmentation Fault 1. Linux bridges are treated - 2.4 and above - just like another interface, so they should work fine. (it's not ntop, it's libpcap - as a q&d test you can use another libpcap based tool such as tcpdump, ethereal, etc. to see if the packets can be seen). 2. Read docs/FAQ - available off About | Help in your ntop instance or in the source. At the bottom are instructions for running under gdb to capture the failure point information. -----Burton -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Gil Sent: Friday, March 18, 2005 9:14 AM To: [email protected] Subject: [Ntop] Segmentation Fault I have tried, compiling and also the ES 3 rpm, and with both packages I get a segfault. Ntop is intended to run on a bridge/firewall using the ebtables-brnf patch. Im curious if that's why its crapping out? Is it written to work on a bridge? Is there a switch to get more info at why its crashing? Here is the output when I run it. /usr/bin/ntop -w 27 -i br0 -w 26 Thu Mar 17 15:29:16 2005 Initializing gdbm databases Thu Mar 17 15:29:16 2005 ntop will be started as user nobody Thu Mar 17 15:29:16 2005 ntop v.3.1 (Dag Apt RPM Repository) MT (SSL) Thu Mar 17 15:29:16 2005 Configured on Jan 3 2005 22:42:45, built on Jan 3 2005 22:44:50. Thu Mar 17 15:29:16 2005 Copyright 1998-2004 by Luca Deri <[EMAIL PROTECTED]> Thu Mar 17 15:29:16 2005 Get the freshest ntop from http://www.ntop.org/ Thu Mar 17 15:29:16 2005 Initializing ntop Thu Mar 17 15:29:16 2005 **WARNING** Truncated network size (device br0) to 1024 hosts (real netmask 255.255.0.0) Thu Mar 17 15:29:16 2005 Checking br0 for additional devices Thu Mar 17 15:29:16 2005 Resetting traffic statistics for device br0 Thu Mar 17 15:29:16 2005 DLT: Device 0 [br0] is 1, mtu 1514, header 14 Thu Mar 17 15:29:16 2005 Initializing gdbm databases Thu Mar 17 15:29:16 2005 VENDOR: Loading MAC address table. Thu Mar 17 15:29:16 2005 VENDOR: Checking for MAC address table file Thu Mar 17 15:29:16 2005 VENDOR: File '/etc/ntop/specialMAC.txt.gz' does not need to be reloaded Thu Mar 17 15:29:16 2005 VENDOR: ntop continues ok Thu Mar 17 15:29:16 2005 VENDOR: Checking for MAC address table file Thu Mar 17 15:29:16 2005 VENDOR: File '/etc/ntop/oui.txt.gz' does not need to be reloaded Thu Mar 17 15:29:16 2005 VENDOR: ntop continues ok Thu Mar 17 15:29:16 2005 Fingeprint: Loading signature file. Thu Mar 17 15:29:16 2005 Fingeprint: ...loaded 1697 records Thu Mar 17 15:29:16 2005 ASN: Checking for Autonomous System Number table file Thu Mar 17 15:29:16 2005 **WARNING** ASN: Unable to open file 'AS-list.txt' Thu 17 Mar 2005 03:29:16 PM EST I18N: Default language (from ntop host) is 'en_US' Thu 17 Mar 2005 03:29:16 PM EST I18N: This instance of ntop supports 0 additional language(s) Thu 17 Mar 2005 03:29:16 PM EST IP2CC: Checking for IP address <-> Country Code mapping file Thu 17 Mar 2005 03:29:16 PM EST IP2CC: Loading file '/etc/ntop/p2c.opt.table.gz' Thu 17 Mar 2005 03:29:16 PM EST IP2CC: ...found 52395 lines Thu 17 Mar 2005 03:29:16 PM EST GDVERCHK: Guessing at libgd version Thu 17 Mar 2005 03:29:16 PM EST GDVERCHK: ... as 1.8.4 Thu 17 Mar 2005 03:29:16 PM EST Initializing external applications Segmentation fault Any help would be great! Robert Gil Desktop Solutions Senior Web Developer 700 Veterans Highway Hauppauge NY, 11788 631-493-3422 631-591-0117 Fax _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
