[ovs-discuss] Error compiling kernel module for OVS 2.5.0

[Luca Prete]

Nice, Thanks!

Luca

On Thu, Apr 14, 2016 at 8:13 PM, Jesse Gross <jesse at kernel.org> wrote:

> Future releases of OVS - both 2.5.x and follow on major releases -
> will include this patch. Once that happens, there will be no need to
> manually patch the source.
>
> On Thu, Apr 14, 2016 at 2:01 PM, Luca Prete <luca at onlab.us> wrote:
> > Joe,
> >
> > It worked out perfectly! Do you think would be possible to create a
> patch -
> > depending on the kernel version - so that people won't have to modify
> this
> > in the future?
> >
> > Thanks,
> >
> > Luca
> >
> > On Wed, Apr 13, 2016 at 6:09 PM, Luca Prete <luca at onlab.us> wrote:
> >>
> >> Cool!
> >>
> >> I'll give it a try and I'll let you know how it goes.
> >>
> >> Thanks
> >>
> >> Luca
> >>
> >> > Il giorno 13 apr 2016, alle ore 17:03, Joe Stringer <joe at ovn.org> ha
> >> > scritto:
> >> >
> >> >> On 13 April 2016 at 13:53, Luca Prete <luca at onlab.us> wrote:
> >> >> Hello everyone,
> >> >>
> >> >> I'm trying to install the latest version of OVS (2.5.0)
> >> >>
> >> >> I'm getting some errors when trying to install the kernel module,
> >> >> either
> >> >> when compiling from src or when I create and then install the deb
> >> >> (specifically in this last case the error happens when I do sudo dpkg
> >> >> -i
> >> >> sudo dpkg -i openvswitch-datapath-dkms_2.5.0-1_all.deb)
> >> >>
> >> >> The error I get is the following:
> >> >> make -C /lib/modules/3.16.0-70-generic/build
> >> >> M=/var/lib/dkms/openvswitch/2.5.0/build/datapath/linux modules
> >> >> make[1]: Entering directory
> `/usr/src/linux-headers-3.16.0-70-generic'
> >> >>  CC [M]
> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.o
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c: In
> >> >> function
> >> >> ‘ovs_fragment’:
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c:730:3:
> >> >> warning: passing argument 1 of ‘v6ops->fragment’ from incompatible
> >> >> pointer
> >> >> type [enabled by default]
> >> >>   v6ops->fragment(skb->sk, skb, ovs_vport_output);
> >> >>   ^
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c:730:3:
> >> >> note:
> >> >> expected ‘struct sk_buff *’ but argument is of type ‘struct sock *’
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c:730:3:
> >> >> warning: passing argument 2 of ‘v6ops->fragment’ from incompatible
> >> >> pointer
> >> >> type [enabled by default]
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c:730:3:
> >> >> note:
> >> >> expected ‘int (*)(struct sk_buff *)’ but argument is of type ‘struct
> >> >> sk_buff
> >> >> *’
> >> >> /var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.c:730:3:
> >> >> error:
> >> >> too many arguments to function ‘v6ops->fragment’
> >> >> make[2]: ***
> >> >> [/var/lib/dkms/openvswitch/2.5.0/build/datapath/linux/actions.o]
> Error
> >> >> 1
> >> >> make[1]: ***
> >> >> [_module_/var/lib/dkms/openvswitch/2.5.0/build/datapath/linux]
> >> >> Error 2
> >> >> make[1]: Leaving directory `/usr/src/linux-headers-3.16.0-70-generic'
> >> >> make: *** [default] Error 2
> >> >> make: Leaving directory
> >> >> `/var/lib/dkms/openvswitch/2.5.0/build/datapath/linux'
> >> >>
> >> >> I'm running the following version of Ubuntu:
> >> >> ubuntu:~/ovs$ sudo lsb_release -a
> >> >> No LSB modules are available.
> >> >> Distributor ID:    Ubuntu
> >> >> Description:    Ubuntu 14.04.4 LTS
> >> >> Release:    14.04
> >> >> Codename:    trusty
> >> >>
> >> >> with the following kernel:
> >> >> ubuntu:~/ovs$ sudo uname -a
> >> >> Linux i2-mn-ubuntu 3.16.0-70-generic #90~14.04.1-Ubuntu SMP Wed Apr 6
> >> >> 22:56:34 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> >> >>
> >> >> Any help would be greatly appreciated.
> >> >
> >> > Hi Luca,
> >> >
> >> > It looks like Ubuntu backported a custom fix into some of their newer
> >> > kernels, leading to this build breakage in conjunction with OVS-2.5.0
> >> > dkms. I didn't see a problem with some 3.16.0-5x versions. If it's
> >> > viable, you can just use the openvswitch module that comes with the
> >> > Ubuntu kernel.
> >> >
> >> > Alternatively to fix it, you'll need to apply this patch to your tree
> >> > (picking up branch-2.5 on github should also fix the issue):
> >> >
> >> >
> https://github.com/openvswitch/ovs/commit/a35342879f1a7d8b1503d4945bd0791c58f5fc87
> >
> >
> >
> > _______________________________________________
> > discuss mailing list
> > discuss at openvswitch.org
> > http://openvswitch.org/mailman/listinfo/discuss
> >
>
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