Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751895AbZC0LYA (ORCPT ); Fri, 27 Mar 2009 07:24:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751075AbZC0LXv (ORCPT ); Fri, 27 Mar 2009 07:23:51 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:50945 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750907AbZC0LXu (ORCPT ); Fri, 27 Mar 2009 07:23:50 -0400 Date: Fri, 27 Mar 2009 11:22:48 +0000 From: Alan Cox To: Bron Gondwana Cc: Matthew Garrett , Linus Torvalds , Theodore Tso , Ingo Molnar , Jan Kara , Andrew Morton , Arjan van de Ven , Peter Zijlstra , Nick Piggin , Jens Axboe , David Rees , Jesper Krogh , Linux Kernel Mailing List , Oleg Nesterov , Roland McGrath Subject: Re: ext3 IO latency measurements (was: Linux 2.6.29) Message-ID: <20090327112248.2746a4ba@lxorguk.ukuu.org.uk> In-Reply-To: <20090326230435.GA10884@brong.net> References: <20090326090630.GA9369@elte.hu> <20090326113705.GV32307@mit.edu> <20090326140312.GB14822@elte.hu> <20090326144707.GA6239@mit.edu> <20090326170714.GF6239@mit.edu> <20090326185900.166a1097@lxorguk.ukuu.org.uk> <20090326200258.GA10313@srcf.ucam.org> <20090326204209.1da6e791@lxorguk.ukuu.org.uk> <20090326230435.GA10884@brong.net> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.14.7; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 611 Lines: 14 > Is this the same Alan Cox who thought a couple of months ago that > having an insanely low default maximum number epoll instances was a > reasonable answer to a theoretical DoS risk, despite it breaking > pretty much every reasonable user of the epoll interface? In the short term yes - because security has to be a very high priority. Lesser of two evils. Alan -- 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/