[lxc-users] Bug? Kernel Panic when running lxc-autostart on 4.0.2

[KATOH Yasufumi]

>>> On Tue, 12 May 2015 19:52:37 -0400
    in message   "[lxc-users] Bug? Kernel Panic when running lxc-autostart on 4.0.2"
                  Robert Pendell-san wrote:

> Provider: Linode
> Platform: LXC-Paravirtualized
> Kernel: Host-supplied 4.0.2
> Issue: When running lxc-autostart the kernel panics and the vps needs
> a hard reboot in order to recover.

> I tested host built kernels 3.19.1, 4.0, 4.0.1, and 4.0.2.  The issue
> only happens on the last one.

> The bug line is as follows:
> BUG: unable to handle kernel NULL pointer dereference at           (null)

> Full stackdump as was given at console:
> https://pastebin.com/raw.php?i=HHjW4iJj

How about apply following patches?
  http://lists.linuxfoundation.org/pipermail/containers/2015-May/035875.html

I also encountered panic on 4.0.2 kernel when I started a unpriv
container, and resolved after applying two patches.
  https://lists.linuxcontainers.org/pipermail/lxc-devel/2015-May/011722.html