[lxc-devel] Unprivileged containers don't start with lxcfs 2.0.0

[Mathias Gibbens]

On Thu, 2016-04-07 at 17:30 +0000, Serge Hallyn wrote:
> Quoting Mathias Gibbens (mathias at calenhad.com):
> > On Tue, 2016-04-05 at 16:45 +0000, Mathias Gibbens wrote:
> > > On Tue, 2016-04-05 at 14:59 +0000, Serge Hallyn wrote:
> > > > Quoting Mathias Gibbens (mathias at calenhad.com):
> > > > > On Sat, 2016-04-02 at 15:53 +0000, Serge Hallyn wrote:
> > > > > > Quoting Mathias Gibbens (mathias at calenhad.com):
> > > > > > >   This evening I upgraded my lxc/lxcfs install, seeing as how lxcfs
> > > > > > > 2.0.0 was tagged earlier today. However, with the current lxcfs (2.0.0)
> > > > > > > my unprivileged containers fail to start:
> > > > > > > 
> > > > > > > > lxc at narya:~$ lxc-start -F -n aule.calenhad.com
> > > > 
> > > > Which lxc version is this.  What pkg source specifically.
> > > 
> > >   This is lxc 2.0.0.rc15 compiled directly from the release source at
> > > https://github.com/lxc/lxc/archive/lxc-2.0.0.rc15.tar.gz. The configure
> > > command I've been using is
> > > 
> > > > ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --with-init-script=systemd --enable-doc --enable-apparmor --enable-seccomp --enable-capabilities --enable-cgmanager --enable-python
> 
> note lxcfs no longer uses cgmanager, so '--enable-cgmanager' isn't needed.  It
> shouldn't break anything though.
> 
> > > 
> > >   I have also been compiling lxcfs from source as well. I had been running lxcfs 2.0.0.beta1 before jumping to the 2.0.0 release. I haven't had time to try any of the in-between rc's to further pinpoint where things broke.
> > 
> >   I've spent some time trying to pinpoint where lxcfs broke, at least
> 
> In what way does it break exactly?  Can you git-bisect to a commit?

  I haven't had much time to look further into this, but thanks to
Stefan Schlesinger who encountered the same issue and reported it on
github with strace output, the current master branch of lxcfs as of
commit 3f441bc works properly again.

Mathias
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