[lxc-users] lxc-attach error: failed to clone(0x8000): Invalid argument

[Nels Nelson]

Just to confirm, Serge, is this the patch?

http://lists.linuxfoundation.org/pipermail/containers/2013-November/033674.html




On Mon, Mar 24, 2014 at 10:07 PM, Serge Hallyn <serge.hallyn at ubuntu.com>wrote:

> Quoting Nels Nelson (nels.n.nelson at gmail.com):
> > I've managed to create and start a container with a custom template,
> here:
> >
> > https://gist.github.com/nelsnelson/9746073
> >
> >
> > However, attempting to attach to that container results in this error:
> >
> >     # lxc-attach -n test -- echo hello world
> >     lxc_container: failed to clone(0x8000): Invalid argument
> >     lxc_container: Invalid argument - failed to create subprocess
> >
> >
> > What could be going wrong here?
> >
> > I'm using lxc version 1.0.0.  I can try again using 1.0.1, if that is
> > recommended based on a known bug in 1.0.0.
> >
> > One more thing, as of November 8th 2013, user TenForward appears to
> > believe this has something to do with a bug in linux kernel 3.12.
> >
> > http://d.hatena.ne.jp/defiant/searchdiary?word=*[Linux]&of=5
> >
> > However, I've not seen any information since.
>
> Yes 0x8000 is CLONE_PARENT so I assume your kernel needs
> commit 1f7f4dde: fork:  Allow CLONE_PARENT after setns(CLONE_NEWPID)
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