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Date: Fri, 4 Apr 2014 07:54:52 +0300
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Subject: netisr 0 : %100 and other netisr threads are waiting
From: =?ISO-8859-1?Q?=D6zkan_KIRIK?= <ozkan.kirik@gmail.com>
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Hi,

I am trying to use suricata on FreeBSD 10 amd64.
FreeBSD behaves as a VLAN router and NAT Box.

Traffic is about 400Mbps.
When i diverted traffic to suricata, swi: netisr 0 thread gets %100 cpu.
other netisr threads are %0. And Even I remove the divert rule, netisr
still eats %100 cpu.  I think that something looping :)
And after 1-2 minutes, one of igb0 and igb1 stops working.
Only reboot solves problem.

Hardware has 8 cores, 24GB Ram

My loader.conf :

hw.igb.txd="4096"
hw.igb.rxd="4096"
hw.igb.rx_process_limit=1024
hw.igb.num_queues=3
net.isr.maxthreads=3
net.isr.bindthreads=1
net.isr.defaultqlimit=4096
net.isr.maxqlimit=20480
net.link.ifqmaxlen=10240

How can I debug this situation?
Any suggestions?

Best regards