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Date:	Sat, 31 May 2008 18:35:01 +0200
From:	Ingo Molnar <>
To:	Ilpo Järvinen <>
Cc:	Peter Zijlstra <>,
	LKML <>,
	Netdev <>,
	"David S. Miller" <>,
	"Rafael J. Wysocki" <>,
	Andrew Morton <>,
	Evgeniy Polyakov <>
Subject: Re: [bug] stuck localhost TCP connections, v2.6.26-rc3+

* Ilpo Järvinen <> wrote:

> > what is the easiest way to figure out whether my version of distcc 
> > enables TCP_DEFER_ACCEPT?
> strace distccd (the listening party is the interesting one here, not 
> the distcc)?
> ...setsockopt(listenfd, SOL_TCP, TCP_DEFER_ACCEPT, &val, sizeof(val)) 
> seems to be the magic trick that is interestion here.

seems to be used:

 22003 write(3, "distccd[22003] (dcc_listen_by_ad"..., 62) = 62
 22003 listen(4, 10)                     = 0
 22003 setsockopt(4, SOL_TCP, TCP_DEFER_ACCEPT, [1], 4) = 0

i'll queue up your reverts for testing in -tip.

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