netdev - Re: sockets affected by IPsec always block (2.6.23)

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Message-Id: <20071205.182500.166603251.davem@davemloft.net>
Date:	Wed, 05 Dec 2007 18:25:00 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	stefan@...lof.de
Cc:	herbert@...dor.apana.org.au, simon@...e.lp0.eu,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: sockets affected by IPsec always block (2.6.23)

From: Stefan Rompf <stefan@...lof.de>
Date: Wed, 5 Dec 2007 19:39:07 +0100

> I'd strongly suggest doing so. AFAIK, behaviour of connect() on nonblocking 
> sockets is quite well defined in POSIX.

You are entitled to your opinion.

POSIX says nothing about the semantics of route resolution.
Non-blocking doesn't mean "cannot sleep no matter what".

> If this is changed for some IP sockets, event-driven applications
> will randomly and subtly break.

If this was such a clear cut case we'd have changed things
a long time ago, but it isn't so don't pretend this is the
case.
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