[Lxc-users] Problem with lxc-attach on Linux v3.1.0

[Nikhil Handigol]

Thanks Daniel!

The linux-3.0 patches don't seem to be working for me unfortunately.

I compiled lxc-0.7.5 with the patched linux-3.0. After starting a container
"foo" via lxc-execute,I ran the following command:
$ lxc-attach -n foo -- /bin/bash

When I run lxc-attach, I get the following error:
lxc-attach: Function not implemented - failed to set namespace 'pid'
lxc-attach: failed to enter the namespace

Upon more probing into the errno, I found:
errno = 38
strerror says: Function not implemented


The required ns files do seem to be present in /proc/<pid>/ns:
$ ls /proc/28559/ns/
ipc mnt net pid user uts

I also double-checked that all the setns patches were properly applied to
the kernel:
$ quilt top
0016-ns-proc-Enable-setns-for-support-for-the-pid-namespa.patch

I'd appreciate any help in fixing this error.

Thanks,
Nikhil


On Wed, Sep 7, 2011 at 6:55 AM, Matteo Bernardini <
matteo.bernardini at gmail.com> wrote:

> > http://lxc.sourceforge.net/patches/linux/3.0.0/3.0.0-lxc1/
>
> I've done a quick try of the patches with linux-3.0.4 with lxc-0.7.5,
> slackware64-13.37 and my existing containers and I'm able to turn them
> off easily with
>
> lxc-attach -n mycontainer -- /sbin/halt
>
> \o/
>
> I'll test them more, but in the meantime thanks Daniel!
>
> Matteo
>
>
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