Christ How much memory do you have on this system? On my system (kernel 2.6.36, 4Gb of RAM, ixgbe) it is working fine. Please try decreasing the num_rx_slots (actually memory allocation happens at pfdnacluster_master boot, but it's worth giving it a try because it's possible you are running out of memory).
Regards Alfredo On Oct 8, 2012, at 1:17 PM, Chris Wakelin <[email protected]> wrote: > Any ideas on this? Is this related to the 32768 num_rx_slots on ixgbe? > > I'd like to get somewhere with this as with just 8 cores, I'm dropping > packets. > > Best Wishes, > Chris > > On 01/10/12 17:50, Chris Wakelin wrote: >> Hi, >> >> I've got a strange problem when trying to increase the number of cores >> used by my Suricata+Bro IDS(+ARGUS) setup. When I try to get Suricata to >> use more than 8 devices, it fails on my Ubuntu 12.04 (kernel 3.2.0) >> boxes. However on my Ubuntu 10.04 (kernel 2.6.32) box it seems OK. >> >> Strangely, there's no problem running Suricata, using libpfring, on >> dnacluster:1@0 .. 1@7 and Bro IDS, using lipcap, on dnacluster:1@8 .. >> 1@15 (with my custom pfdnacluster_master that duplicates traffic). >> >> I can reproduce the problem with pfcount_aggregator (with "#define >> MAX_NUM_DEVS 16" rather than 8):- >> >>> pfdnacluster_master -i dna0 -c 1 -n 12 >> >>> pfcount_aggregator_cdw -i >>> dnacluster:1@0+dnacluster:1@1+dnacluster:1@2+dnacluster:1@3+dnacluster:1@4+dnacluster:1@5+dnacluster:1@6+dnacluster:1@7+dnacluster:1@8+dnacluster:1@9+dnacluster:1@10+dnacluster:1@11 >>> -l 1522 >>> Using PF_RING v.5.4.5 >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> Impossible to know the device address >>> # Device RX channels: 1 >>> pfring_set_direction returned [rc=-7][direction=0] >>> pfring_open error [Cannot allocate memory] (pf_ring not loaded or perhaps >>> you use quick mode and have already a socket bound to dnacluster:1@8 ?) >> >> >> The 12.04 boxes have ixgbe devices loaded with "insmod ixgbe.ko RSS=1,1 >> FdirPballoc=3,3 mtu=1522". >> >> The 10.04 box has e1000e (DNA demo license) loaded with just "insmod >> e1000e". >> >> Is this expected? >> >> Best Wishes, >> Chris >> > > > -- > --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- > Christopher Wakelin, [email protected] > IT Services Centre, The University of Reading, Tel: +44 (0)118 378 2908 > Whiteknights, Reading, RG6 6AF, UK Fax: +44 (0)118 975 3094 > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
