[CRIU] [PATCH] sockets: don't double buffer size for sockets

[Cyrill Gorcunov]

On Tue, Sep 17, 2013 at 07:03:24PM +0400, Andrey Vagin wrote:
> SO_SNDBUF and SO_RCVBUF sets a double input value, because
> "Linux reserves half of te socket buffer for metadata."
> 
> So if a process is suspended/restored many times, a socket buffer
> size is doubled on each iteration and in a one moment it is overflowed.
> Very likely the program hangs in such situation, because the socket with
> negative buffer size is unusable.
> 
> Signed-off-by: Andrey Vagin <avagin at openvz.org>

Acked-by: Cyrill Gorcunov <gorcunov at openvz.org>

Good catch!