Right, the OVS out-of-tree kernel module (the one that ships with OVS) doesn't support kernels greater than 4.14 yet. When OVS 2.10 ships, the plan is to include support for at least kernel 4.15.
The Linux kernel includes an OVS kernel module, which always works with whatever Linux kernel it ships with. However, it will only include whatever OVS features were included at the time of that kernel release. We maintain the out-of-tree kernel module so that we can introduce new features to those older kernels. Maintaining this backwards compatibility in the out-of-tree kernel module can be fairly complex at times, which is why it sometimes lags behind the latest kernel releases. --Justin > On Aug 6, 2018, at 11:36 PM, Vikas Kumar <[email protected]> wrote: > > Thanks for your reply Justin, > I had Linux kernel 4.15 version earlier, but when i was trying to configure > the ovs master version, in that case i was getting some other error. > please see below my previous conversation, > > > Vikas Kumar <[email protected]> > Aug 2 (5 days ago) > > to bugs > hi Team, > i am using ubuntu 16.0. i am trying to configure the ovs source code, but i > am getting the below error message. please help me on this > > configure: error: Linux kernel in /lib/modules/4.15.0-29-generic/build is > version 4.15.18, but version newer than 4.14.x is not supported (please refer > to the FAQ for advice) > > Regards > vikash > > Darrell Ball <[email protected]> > Aug 2 (5 days ago) > > to me, bugs > Means your kernel has been upgraded to 4.15 in your Xenial environment (check > uname –r) > > Latest OVS release supports up to 4.14 > > http://docs.openvswitch.org/en/latest/faq/releases/ > Second question. > > > From: <[email protected]> on behalf of Vikas Kumar > <[email protected]> > Date: Thursday, August 2, 2018 at 2:08 AM > To: "[email protected]" <[email protected]> > Subject: [ovs-discuss] Bug in configuring of Ovs > > Actually i want to dump the ovs flows for my investigation. > > Thanks > Vikash > > On Tue, Aug 7, 2018 at 2:17 PM, Justin Pettit <[email protected]> wrote: > > > On Aug 6, 2018, at 8:49 PM, Vikas Kumar <[email protected]> wrote: > > > > hi Team, > > kindly help me on this, when i am typing sudo ovs-dpctl dump-flows command, > > i am getting the below error > > |00001|dpif_netlink|INFO|The kernel module does not support meters. > > > > I am using the below ubuntu version: > > > > 4.14.13-041413-generic > > Meters were introduced to the Linux kernel in 4.15, so earlier versions don't > support them. Unfortunately, all the released upstream kernels have a bug in > them that prevents meters from being used properly. A patch was recently > accepted upstream, which means that new releases (including maintained older > kernels) should receive the fix. > > The OVS 2.10 out-of-tree kernel module will contain meters on all supported > kernels. > > All of that said, unless you need meters, you can just ignore that message; > it's just informational. > > --Justin > > > _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
