Hello, I have been working for days trying to resolve a segfault issue like the following:
Nov 4 10:46:54 NTOP-SC kernel: ntop[25479]: segfault at 645 ip 00007f95f3cf3395 sp 00007f95e9b75ae8 error 6 in libntop-4.1.1.so[7f95f3cb9000+56000] The environment is an ESX 5 VM. Guest OS I have tried: 1. CentOS 6 2. Fedora 15 3. Network Security Toolkit (uses 4865 of the current dev tree) Versions I have tried: 1. Current dev tree. 2. Current stable version (4.1.0) The times variate on where these faults occur, but it is relevant to network load factors. My test networks: 1. Simple home network with all packets going to NTOP. 2. High load work network that can see 25 Gig in 15 mins. The most stable I have seen is a clean CentOS install, build ntop from trunk tree, install and run. The quickest segfault I can obtain is when I implement PF_RING, use a e1000 card in the vm, and use the pf_ring aware e1000 driver. Can get a segfault usually within 30 mins on the busy network. The common theme is the segfaulting. I did attempt a gdb on the device one time and saw a malloc issue, but all these VMs have 4GB memory and I have tried tuning different hash sizes to see how this impacts the issue, but it really never does. Use smaller hash values, and I get more messages of low memory, etc. I am really not sure what else to do, if there is anything I can do to present more information, please let me know as I would like to stop this incessant segfaulting.
_______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
