From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267378AbUHPDIR (ORCPT ); Sun, 15 Aug 2004 23:08:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267386AbUHPDIR (ORCPT ); Sun, 15 Aug 2004 23:08:17 -0400 Received: from mx1.elte.hu ([157.181.1.137]:3718 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S267382AbUHPDIC (ORCPT ); Sun, 15 Aug 2004 23:08:02 -0400 Date: Mon, 16 Aug 2004 05:08:18 +0200 From: Ingo Molnar To: Lee Revell Cc: Florian Schmidt , linux-kernel , Felipe Alfaro Solana Subject: Re: [patch] voluntary-preempt-2.6.8.1-P0 Message-ID: <20040816030818.GA10685@elte.hu> References: <20040810132654.GA28915@elte.hu> <20040812235116.GA27838@elte.hu> <1092382825.3450.19.camel@mindpipe> <20040813104817.GI8135@elte.hu> <1092432929.3450.78.camel@mindpipe> <20040814072009.GA6535@elte.hu> <20040815115649.GA26259@elte.hu> <20040816022554.16c3c84a@mango.fruits.de> <1092622121.867.109.camel@krustophenia.net> <20040816024314.GA8960@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040816024314.GA8960@elte.hu> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > just to check this theory, could you make __check_and_rekey() an empty > function? This should still produce a working random driver, albeit at > much reduced entropy. If these latencies have a relationship to the > mlockall() issue then this change should have an effect. hm, could you disable the random driver in the .config rather? It seems that adding to the entropy pool (from hardirq context) alone is quite expensive too. Ingo