[Lxc-users] On clean shutdown of Ubuntu 10.04 containers

[atp]

Hi,

The way it works on 0.7 was always a stopgap - there does not seem to be
a clean way of doing it that bridges both sysv init and upstart. The
ideal thing would be to intercept the reboot() syscall. The clean way
would be in the kernel. The nasty way would be via LD_PRELOAD or other
tricks. The nasty way obviously gets mired in being compatible with
the container libraries. 

Andy

On Mon, 2010-12-06 at 10:32 -0600, Serge E. Hallyn wrote:
> Quoting Trent W. Buck (twb at cybersource.com.au):
> > Unfortunately, lxc 0.7's utmp detect requires /var/run to NOT be a
> > tmpfs.  The shipped lxc-ubuntu script works around this by deleting the
> > ifstate file and not mounting a tmpfs on /var/run, but to me that is
> > simply waiting for something else to assume /var/run is empty.  It also
> > doesn't cope with a mountall upgrade rewriting /lib/init/fstab.
> 
> Note that how to handle clean shutdown is one of the open topics.
> So if you're interested in helping to properly fix that, please
> feel free to join our development call this coming thursday morning,
> as per announcement last week :)
> 
> IIRC Daniel L. had a kernel patch to help fix this workaround?  He
> was experimenting with it at UDS-N.
> 
> thanks,
> -serge
> 
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