On Thu, Jan 08, 2015 at 09:15:17PM +0000, James Page wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Hi Ben > > On 07/01/15 16:18, Ben Pfaff wrote: > > Thanks. In the past I've tried but I've been unable to track down > > the root cause. I also suspected some kind of compiler bug or > > strange interaction. > > I've still not determined whether this is an optimizer issue, but we > have now seen this problem across all 6 server in our Ubuntu QA cloud; > this appears to be a problem that builds up over time - the tenant > that sees this first is our automated testing account which > creates/deletes alot of instances over time. > > Across all nodes I see: > > 2015-01-08T13:36:07.822Z|80336|dpif|WARN|system@ovs-system: failed to > flow_del (No such file or directory) > skb_priority(0),in_port(4),skb_mark(0),eth(src=ae:c4:93:ba:85:3e,dst=33:33:ff:5f:c4:32),eth_type(0x86dd),ipv6(src=::,dst=ff02::1:ff5f:c432,label=0,proto=58,tclass=0,hlimit=255,frag=no),icmpv6(type=135,code=0),nd(target=fe80::8412:d1ff:fe5f:c432) > > message alot; which is related to > https://github.com/openvswitch/ovs/commit/3601bd879 which we don't > have in the 3.13 kernel for trusty. > > I'm wondering whether this is related - the stacktrace relates to flow > misses and has a large parameter list in the handle_flow_misses call. > > The optimized code may just be obfuscating the actual problem.
Any chance you could try a build without optimization, or without optimization in the source files at issue? _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
