[rhos-list] I think I found something missing in iproute2

[unicell]

Hi Ronald,

Some information for your reference, cause I'm also met the same issue.
There're two parts of the story.

For the iproute part, the version in the RDO grizzly repo has already netns
support.

However, for the Linux kernel portion, it need namespace file descriptor
feature (/proc/[pid]/ns/net stuff) to make 'ip netns xxx' work. And this
kernel feature so far is not included in any of RHEL 6.3/6.4 kernel
releases.

Best Regards,
--
Qiu Yu
http://www.unicell.info


On Sat, May 25, 2013 at 10:05 AM, Ronald Cronenwett <ronac07 at gmail.com>wrote:

> Chris,
>
> I noticed iproute has been updated in the RDO grizzly repositories to the
> version in your link. There was also a kernel update. Does this mean
> namespaces can now be used for Quantum? I see "ip netns list" does not give
> an error but "ip netns add test"  results in
>
> [root at os64-1 ~]# ip netns add test
> Bind /proc/self/ns/net -> /var/run/netns/test failed: No such file or
> directory
>
> I have the following loaded:
>
> iproute-2.6.32-23.el6_4.netns.1.x86_64
> kernel-2.6.32-358.6.2.el6.x86_64
>
> Thanks
>
> Ron Cronenwett
>
>
> On Thu, May 9, 2013 at 2:16 PM, Chris Wright <chrisw at redhat.com> wrote:
>
>> * Paul Robert Marino (prmarino1 at gmail.com) wrote:
>> > # grep -P '(NET_NS|NAMESPACE)' /boot/config-2.6.32-358.6.1.el6.x86_64
>> > CONFIG_NAMESPACES=y
>> > CONFIG_NET_NS=y
>>
>> That is the right config items enabled, however, there are
>> internal implementation details that are missing.  So what
>> is in 2.6.32-358.6.1.el6.x86_64 is not sufficient.
>>
>> > It looks to me as though its already enabled in the kernel compile
>> > configuration, and I thought supporting it was part of the original plan
>> > for RHEL 6.4 specifically because OpenStack needs it.
>>
>> RHEL 6.4 has already shipped and does not support it.
>>
>> If you are interested in helping testing the feature, please let me
>> know.
>>
>> I have packages here for iproute2:
>>
>> http://et.redhat.com/~chrisw/rhel6/6.4/bz869004/iproute/netns.1/
>>
>> And will try to push out test kernel asap.
>>
>> thanks,
>> -chris
>>
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>
>
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