From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 17 Nov 2002 12:30:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 17 Nov 2002 12:30:38 -0500 Received: from mailout01.sul.t-online.com ([194.25.134.80]:57729 "EHLO mailout01.sul.t-online.com") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Sun, 17 Nov 2002 12:30:37 -0500 Content-Type: text/plain; charset=US-ASCII From: Marc-Christian Petersen Organization: WOLK - Working Overloaded Linux Kernel To: Andrea Arcangeli , Andrew Morton Subject: Re: 2.[45] fixes for design locking bug in wait_on_page/wait_on_buffer/get_request_wait Date: Sun, 17 Nov 2002 18:37:00 +0100 User-Agent: KMail/1.4.3 Cc: linux-kernel@vger.kernel.org, Rodrigo Souza de Castro References: <200211161958.57677.m.c.p@wolk-project.de> <200211162235.39620.m.c.p@wolk-project.de> In-Reply-To: <200211162235.39620.m.c.p@wolk-project.de> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200211171832.12855.m.c.p@wolk-project.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Saturday 16 November 2002 22:55, Marc-Christian Petersen wrote: Hi Andrea, > Andrea, this makes a difference! The pausings are much less than before, > but still occur. Situation below. So, after some time in trying to exchange 2.4.20-rc2 files with the following files from 2.4.18 (and compile successfully) drivers/block/ll_rw_blk.c drivers/block/elevator.c include/linux/elevator.h those "pauses/stopps" are _GONE_! I've also tested all this situations with totally different mashines. No changes, all behaves the same. I am really afraid that no one else (seems so) noticed this but me! I cannot believe that?! :-( It is a really serious "bug" I cannot live with. Doing that high disk i/o and even pings are ignored for the amount of time the stop occurs, is an absolutely inacceptable situation! *imho* What do you think? :-) ciao, Marc