[lxc-devel] lxc-clone outputs some logs

[Serge Hallyn]

Quoting KATOH Yasufumi (karma at jazz.email.ne.jp):
> >>> On Thu, 30 Oct 2014 19:07:58 +0900
>     in message   "Re: [lxc-devel] lxc-clone outputs some logs":
> 
> > > Hi,
> 
> > > After applying commit edf7734 "overlay and aufs clone_paths: be more
> > > robust", clone was completed successfully but lxc-clone on unpriv env
> > > is now output the following log:
> 
> > >   $ lxc-clone -o ct02 -n test -s -B overlayfs
> > >   lxc_container: conf.c: chown_mapped_root: 3649 Error stat /home/karma/.local/share/lxc/test/delta0
> > >   Created container test as snapshot of ct02
> > >   lxc_container: lxccontainer.c: copy_file: 2303 copy destination /home/karma/.local/share/lxc/test/lxc_rdepends exists
> > >   Created container test as snapshot of ct02
> 
> > ct02 is the cloned container with overlayfs.
> 
> I find out other problem. After applying that patch, in part of the
> beginning of overlayfs_clonepath function, new->dest variable is,
> for example:
>   "overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local/share/lxc/ct02/delta0"
> 
> So, as the result, run "mkdir_p(new->dest, 0755)", and create dir in
> current dir.
> 
> $ lxc-clone -o ct02 -n test -s -B overlayfs
> lxc_container: conf.c: chown_mapped_root: 3649 Error stat /home/karma/.local/share/lxc/test/delta0
> Created container test as snapshot of ct02
> lxc_container: lxccontainer.c: copy_file: 2303 copy destination /home/karma/.local/share/lxc/test/lxc_rdepends exists
> Created container test as snapshot of ct02
> $ find overlayfs\:/
> overlayfs:/
> overlayfs:/home
> overlayfs:/home/karma
> overlayfs:/home/karma/.local
> overlayfs:/home/karma/.local/share
> overlayfs:/home/karma/.local/share/lxc
> overlayfs:/home/karma/.local/share/lxc/ct01
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local/share
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local/share/lxc
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local/share/lxc/test
> overlayfs:/home/karma/.local/share/lxc/ct01/rootfs:/home/karma/.local/share/lxc/test/delta0

Sorry, I'm not really following, and I guess I haven't been using overlayfs
clones much lately.  Do you how to fix it, and can you send a patch?

thanks much,
-serge