netdev - Re: [Bug 8013] New: select for write hangs on a socket after write returned ECONNRESET

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Message-ID: <20070222134620.GC5208@2ka.mipt.ru>
Date:	Thu, 22 Feb 2007 16:46:21 +0300
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	David Miller <davem@...emloft.net>
Cc:	shemminger@...ux-foundation.org, netdev@...r.kernel.org
Subject: Re: [Bug 8013] New: select for write hangs on a socket after write returned ECONNRESET

On Thu, Feb 22, 2007 at 05:31:38AM -0800, David Miller (davem@...emloft.net) wrote:
> TCP_CLOSE is where we end up on a non-error close too, this has
> the same kind of bug as your previous attempt to set POLLERR
> here.
> 
> One side gets TCP_TIMEWAIT the other goes straight to TCP_CLOSE.
> 
> It really is not possible to change current semantics, they are the
> best possible unfortunately.

AS a last attempt - we can have a sockt flag set when sk-err is
installed in tcp_reset(), and tcp_poll() will set POLLERR if that flag
exist (just like it checks for sk_err, which is cleared in tcp_sendmsg()
when error is being returned).

-- 
	Evgeniy Polyakov
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