tcpdump: can't create rx ring on packet socket: Cannot allocate memory

[Jason Haar <Jason_Haar () trimble com>]

Hi there

I've got a 64bit fully patched CentOS-6 system running snort (happily).
However, a couple of times I've noticed "cannot allocate memory" errors
when attempting to start other sniffer software like daemonlogger or
tcpdump on the same system

eg

# tcpdump  -n -i eth1 port 22
tcpdump: can't create rx ring on packet socket: Cannot allocate memory


I can run the command, have it error out with the above error, then
re-run the same command mere seconds later and it works just fine...

Anyone else seen that, and is there a cure? Oh yeah, there's no shortage
of memory on the system

Thanks

-- 
Cheers

Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +1 408 481 8171
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1


------------------------------------------------------------------------------
Get your SQL database under version control now!
Version control is standard for application code, but databases havent 
caught up. So what steps can you take to put your SQL databases under 
version control? Why should you start doing it? Read more to find out.
http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk
_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://sourceforge.net/mailarchive/forum.php?forum_name=snort-users

Please visit http://blog.snort.org to stay current on all the latest Snort news!