<div dir="ltr">Hey other ops!<div><br></div><div>Im having a serious problem with my neutron router getting spin locked in nf_conntrack_tuple_taken.</div><div>Has anybody else experienced it?</div><div>As the incoming request rate goes up, so nf_conntrack_tuple_taken runs very hot on CPU0 causing ksoftirqd/0 to run at 100%. At that point internal pings on the GRE network go sky high and its game over.</div>
<div><br></div><div>Ubuntu 14.04/Icehouse 2014.1.1 on an ibm x3550 with 4 10G intel nics.</div><div>eth0 - Mgt</div><div>eth1 - GRE</div><div>eth2 - Public</div><div>eth3 - unusedĀ </div><div><br></div><div>Any help very much appreciated!</div>
<div><br></div><div>BR,</div><div>Stuart</div></div>