Net stack serialization fix

[Jonathan Larmour]

Nick Garnett wrote:
> This patch fixes the network stack problems I mentioned here:
> 
> http://sources.redhat.com/ml/ecos-discuss/2002-10/msg00734.html
> 
> This ought to be checked over for sensibility, particularly by Gary.
> It probably errs on the side of caution in some places.

Can't see any problem certainly myself, so in the absence of other 
comments, please check it in!

Jifl
-- 
eCosCentric       http://www.eCosCentric.com/       <info@eCosCentric.com>
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine