netdev - [RFC] LXC and network namespace issue

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Message-ID: <530F3BD2.9090204@guap.ru>
Date:	Thu, 27 Feb 2014 17:21:22 +0400
From:	"V. Lavrov" <lve@...p.ru>
To:	netdev@...r.kernel.org
Subject: [RFC] LXC and network namespace issue

The problem with stoping/restarting the container.

Upon completion of the container, the parent process received signal SIGCHLD and exit code (by waitpid()).

During the 10-25ms after the completion of the container, we can not create vlan-interface (for restart).
The system returns an error codeEEXIST.

Another problem with the network interface type "phys".
Before running the container we save ifindex network physical interface (by if_nametoindex()).
We need to restore the name of network interface have the type phys (by saved ifindex) upon completion of the container,
  but the system returns an error ENODEV. 10-25 ms later the action is completed successfully!

Is there a way to wait for the release of all resources (from userspace)?
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