[lxc-devel] Very slow lxc-start

[Daniel Lezcano]

On 07/25/2010 01:57 PM, Denis Rizaev wrote:
> Hi guys.
> In last versions of lxc lxc-start is very slow. On my system with 15
> containers it stucks for ~20 seconds before actual container launch begins.
> With strace i see that it does many umounts in /mnt.
> Can anyone explain what happens?
>    

lxc was not unmounting correctly all the inherited mounted points, that 
was fixed, so there is more umounts.
But there is a regression in the kernel, I noticed the same problem with 
a 2.6.32-23 kernel from ubuntu.

I reported the problem to the ubuntu kernel team:

https://lists.ubuntu.com/archives/kernel-team/2010-July/011680.html

Hope that helps
   -- Daniel