Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759662AbZAWFXr (ORCPT ); Fri, 23 Jan 2009 00:23:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750841AbZAWFXk (ORCPT ); Fri, 23 Jan 2009 00:23:40 -0500 Received: from mx1.suse.de ([195.135.220.2]:53006 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823AbZAWFXj (ORCPT ); Fri, 23 Jan 2009 00:23:39 -0500 Date: Thu, 22 Jan 2009 21:16:20 -0800 From: Greg KH To: Bron Gondwana Cc: Linux Kernel Mailing List , stable@kernel.org, Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber Subject: Re: [patch 016/104] epoll: introduce resource usage limits Message-ID: <20090123051620.GA8122@suse.de> References: <20081203193901.715896543@mini.kroah.org> <20081203194849.GQ8950@kroah.com> <1232686261.9977.1296303473@webmail.messagingengine.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1232686261.9977.1296303473@webmail.messagingengine.com> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1240 Lines: 28 On Fri, Jan 23, 2009 at 03:51:01PM +1100, Bron Gondwana wrote: > On Wed, 03 Dec 2008 11:48 -0800, "Greg KH" wrote: > > The default value for "max_user_instances" is set to 128, that should be enough too. > > Our fairly heavily loaded postfix backup mx (lots of spams rejected per day) hit this > limit running kernel 2.6.27.8. Any particular reason for it being as low as 128 > by default? Something had to be picked :) > This is a kvm virtual machine running on a reasonably beefy external box, but > with 2Gb RAM allocated to the mx instance because that's all kvm would let me > use last time I checked. We're using KVM so the local copy of the database is > a little further away from the "internet facing side" and so we can build each > machine with our standard FAI setup. I would suggest just changing this default value then, it's a simple userspace configuration item, and for your boxes, it sounds like a larger value would be more suitable. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/