[ovs-dev] ovs 2.13.0 has lldp issues on 5.6.14 kernel
Ilya Maximets
i.maximets at ovn.org
Wed Aug 19 17:31:49 UTC 2020
On 8/19/20 6:58 PM, Chuan Han wrote:
> Thanks Ilya for quick response.
>
> What is the best way of getting 2.13.1? I tried to build from source, but hit this issue.
>
> openvswitch/vtep/vtep-ctl.8.in <http://vtep-ctl.8.in>
> openvswitch/vtep/vtep-ctl.c
> # check we can get kernel module names
> /usr/bin/make -C datapath print-build-modules
> make[2]: Entering directory '/usr/local/google/home/chuanhan/project/ovs/datapath'
> openvswitch vport-geneve vport-gre vport-lisp vport-stt vport-vxlan
> make[2]: Leaving directory '/usr/local/google/home/chuanhan/project/ovs/datapath'
> # Prepare dkms.conf from the dkms.conf.in <http://dkms.conf.in> template
> sed "s/__VERSION__/2.13.1/g; s/__MODULES__/openvswitch vport-geneve vport-gre vport-lisp vport-stt vport-vxlan /" debian/dkms.conf.in <http://dkms.conf.in> > debian/openvswitch-datapath-dkms/usr/src/openvswitch-2.13.1/dkms.conf
> # We don't need the debian folder in there, just upstream sources...
> rm -rf debian/openvswitch-datapath-dkms/usr/src/openvswitch-2.13.1/debian
> # We don't need the rhel stuff in there either
> rm -rf debian/openvswitch-datapath-dkms/usr/src/openvswitch-2.13.1/rhel
> # And we should also clean useless license files, which are already
> # described in our debian/copyright anyway.
> rm -f debian/openvswitch-datapath-dkms/usr/src/openvswitch-2.13.1/xenserver/LICENSE
> make[1]: Leaving directory '/usr/local/google/home/chuanhan/project/ovs'
> dh_installdocs -O--parallel
> dh_installdocs: warning: Compatibility levels before 10 are deprecated (level 9 in use)
> dh_installchangelogs -O--parallel
> dh_installchangelogs: warning: Compatibility levels before 10 are deprecated (level 9 in use)
> debian/rules override_dh_installman
> make[1]: Entering directory '/usr/local/google/home/chuanhan/project/ovs'
> dh_installman --language=C
> dh_installman: warning: Compatibility levels before 10 are deprecated (level 9 in use)
> dh_installman: error: Cannot find (any matches for) "utilities/ovs-appctl.8" (tried in .)
>
> dh_installman: error: Cannot find (any matches for) "utilities/ovs-ctl.8" (tried in .)
>
> dh_installman: error: Cannot find (any matches for) "utilities/ovs-l3ping.8" (tried in .)
>
> dh_installman: error: Aborting due to earlier error
> make[1]: *** [debian/rules:94: override_dh_installman] Error 255
> make[1]: Leaving directory '/usr/local/google/home/chuanhan/project/ovs'
> make: *** [debian/rules:25: binary] Error 2
>
> It might be because the following is missing.
>
> $ dpkg-checkbuilddeps
> dpkg-checkbuilddeps: error: Unmet build dependencies: python3-twisted-conch python3-zopeinterface
>
> Again, my kernel is 5.6. I only have python3-twisted and python3-zope.interface instead.
>
> Are these two packages the culprit? Or, 2.13 and older versions cannot be built on 5.5+ kernel? Is there a way to skip building the kernel model? It seems that the building kernel model failed.
>
> Please advise.
Oh. Unfortunately there is a known issue with 2.13. Some patches are missing.
Related issue: https://github.com/openvswitch/ovs-issues/issues/194
You could try clone the openvswitch repo, checkout branch-2.13 and execute
$ git cherry-pick c101cd417 3c18bb0fe fe175ac17
So, you'll have following three commits applied:
* fe175ac17 2020-05-15 | debian: Add python3-sphinx to ovs build dependencies [Ansis Atteka]
* 3c18bb0fe 2020-05-14 | debian: Fix package dependencies [Roi Dayan]
* c101cd417 2020-05-13 | debian: Fix broken build after some man pages became generated from RST [Ansis Atteka]
Alternatively, you could try to just modify the code in a way like these commits does.
There are few incorrect dependencies and also manpage files moved around.
This is not related to kernel. I hope, we will have these commits backported to 2.13 soon.
Sorry for inconvenience.
>
> Thanks.
> Chuan
>
> On Wed, Aug 19, 2020 at 9:35 AM Ilya Maximets <i.maximets at ovn.org <mailto:i.maximets at ovn.org>> wrote:
>
> On 8/19/20 6:17 PM, Chuan Han via dev wrote:
> > Hi, ovs dev,
> >
> > We recently hit a lldp issue, e.g., lldp functionality does not work
> > reliably, when ovs was upgraded from 2.11.0 to 2.13.0 on kernel 5.6. I
> > heard from other sources that to be compatible with kernel 5.5+, we need
> > 2.14+. I upgraded ovs to 2.14, and it seems ovs lldp works fine now.
> >
> > Is this a known issue? Is this true that for kernel 5.5+, we need 2.14+
> > ovs? I checked the debian tracker for ovs
> > <https://tracker.debian.org/pkg/openvswitch>. I did not see ovs 2.14 there
> > yet.
>
> Hi. Userspace components should work fine with any kernel. You do need
> 2.14+ in case you want to build out-of-tree kernel module, but, I guess,
> that is not what you want.
>
> In case you have an issue with 2.13.0 and there is no issue with 2.14, I'd
> suggest to try 2.13.1. There were many bug fixes backported since 2.13.0.
>
> Please, give it a try and reply if it works for you. If not, you could
> try to bisect branch-2.14 to find which commit actually fixes the issue
> or give us more details to take a look and find a suitable fix.
>
> Best regards, Ilya Maximets.
>
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