From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Graf Subject: Re: [RFC] random SYN drops causing connect() delays Date: Wed, 28 Apr 2010 00:44:43 -0400 Message-ID: <20100428044443.GL19763@bombadil.infradead.org> References: <20100412080633.GA27418@bombadil.infradead.org> <20100412083903.GA19763@bombadil.infradead.org> <20100427.185602.221594952.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org To: David Miller Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:56175 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751189Ab0D1Eoo (ORCPT ); Wed, 28 Apr 2010 00:44:44 -0400 Content-Disposition: inline In-Reply-To: <20100427.185602.221594952.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Apr 27, 2010 at 06:56:02PM -0700, David Miller wrote: > I can't reproduce on my system even with sched_child_runs_first set to '1'. > > Are you running identd or something like that which intercepts the connections > to port 22 before 'sshd' actually gets it? No, sshd is listening on the port directly. I am having more difficulties to reproduce the issue with the latest git tree. It still happens but I sometimes have to run the test several times to get a single delayed connection attempt.