On 24 September 2016 at 09:34, Advith Nagappa <advith.naga...@gmail.com> wrote:
> Hello,
>
> I have installed ovs 2.5.0 on Ubuntu 14.04(Kernel 4.2.0-27-generic)
> Virtualbox on a Windows Host. ( I was able to produce the issue for ovs
> 2.3.3 and 2.4.0)
>
> On running 'make check-system-userspace' , all test cases fail.
>
> Interestingly though, the first time I ran the 'check' on this
> datapath-sanity, only ping between two ports was successful.
>
> datapath-sanity
>
>   1: datapath - ping between two ports               ok
>   2: datapath - ping between two ports on vlan       FAILED
> (system-traffic.at:49)
>   3: datapath - ping6 between two ports              FAILED
> (system-traffic.at:53)VM,
>
> but on subsequent checks (without re configuring or re-install), everything
> fails
>
> datapath-sanity
>
>   1: datapath - ping between two ports               FAILED
> (system-traffic.at:23)
>   2: datapath - ping between two ports on vlan       FAILED
> (system-traffic.at:27)
>   3: datapath - ping6 between two ports              FAILED
> (system-traffic.at:76)
>
> I noticed that as the check is run, the ethernet connection on my VM gets
> disconnected and re-connects once again. This is just an observation, I am
> not sure if it is related.
>
> I have attached the log file for reference. Appreciate your inputs.

Hmm. Thanks for trying this out. I haven't been able to reproduce
this, although I am testing with different kernels and using the
latest branch-2.5 from git.

A couple of things to watch out for - if 'br0' or 'ovs-p0', 'ovs-p1'
devices already exist before running the test then these may interfere
with the testsuite running properly.

In your posted system-userspace-testsuite.log I also see messages like
this from the logs:

+2016-09-24T16:15:09.493Z|00025|netlink_notifier|WARN|received bad
netlink message

It seems that this just means that OVS userspace received some netlink
message it didn't expect. I'm not sure why it would show up in the
userspace tests like this, although it's probably also dependent on
which kernel you're running so maybe linux-4.2 in combination with
OVS-2.5 often prints this.

However, I noticed that these complaints are happening after the test
has succeeded, in the final step where OVS is stopped and the logs are
checked. So the actual target of the tests has passed, it's just this
last log checking that failed. It's not something to be worried about.

OVS-2.5 is also the first release to contain these tests, so there may
be some teething issues with them like this. I hope that they will be
more reliable in the upcoming v2.6 release and beyond.
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