netdev - Re: virt-manager broken by bind(0) in net-next.

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Message-ID: <20090130112125.GA9908@ioremap.net>
Date:	Fri, 30 Jan 2009 14:21:25 +0300
From:	Evgeniy Polyakov <zbr@...emap.net>
To:	"Daniel P. Berrange" <berrange@...hat.com>
Cc:	Stephen Hemminger <shemminger@...tta.com>,
	Fedora/Linux Management Tools <et-mgmt-tools@...hat.com>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: virt-manager broken by bind(0) in net-next.

On Fri, Jan 30, 2009 at 10:27:49AM +0000, Daniel P. Berrange (berrange@...hat.com) wrote:
> The virt-manager console is basically just a plain old boring VNC client.
> It uses GTK-VNC to establish its VNC network connection, and that doesn't
> do anything unusual AFAIK. We use getaddrinfo() to resolve the hostname,
> and then try each of its results in turn, until we succesfully connect
> to the VNC server. We don't explicitly bind() to the client port, just
> let the kernel pick it for us. The code in question, is the "gvnc_open_host"
> method from gvnc.c,  which starts at about line 2910
> 
> http://freehg.org/u/aliguori/gtk-vnc.hg/file/d68935d582f0/src/gvnc.c

So it is not explicit bind call, but port autoselection in the
connect(). Can you check what errno is returned?
Did I understand it right, that connect fails, you try different
address, but then suddenly all those sockets become 'alive'?

-- 
	Evgeniy Polyakov
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