From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266258AbUG0G6A (ORCPT ); Tue, 27 Jul 2004 02:58:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266262AbUG0G6A (ORCPT ); Tue, 27 Jul 2004 02:58:00 -0400 Received: from mx2.elte.hu ([157.181.151.9]:46533 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S266258AbUG0G54 (ORCPT ); Tue, 27 Jul 2004 02:57:56 -0400 Date: Tue, 27 Jul 2004 08:43:45 +0200 From: Ingo Molnar To: Rudo Thomas Cc: Lee Revell , Jens Axboe , William Lee Irwin III , Lenar L?hmus , linux-kernel , Andrew Morton Subject: Re: no luck with max_sectors_kb (Re: voluntary-preempt-2.6.8-rc2-J4) Message-ID: <20040727064345.GA5594@elte.hu> References: <1090732537.738.2.camel@mindpipe> <1090795742.719.4.camel@mindpipe> <20040726082330.GA22764@elte.hu> <1090830574.6936.96.camel@mindpipe> <20040726083537.GA24948@elte.hu> <20040726100103.GA29072@elte.hu> <20040726101536.GA29408@elte.hu> <20040726204228.GA1231@ss1000.ms.mff.cuni.cz> <20040726205741.GA27527@elte.hu> <20040726225009.GA2369@ss1000.ms.mff.cuni.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040726225009.GA2369@ss1000.ms.mff.cuni.cz> 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, autolearn=not spam, 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 * Rudo Thomas wrote: > > does the patch below, ontop of -J7, help? > > I tried it, but did not test tuning the value, as the patch has > problems of its own: with device-mapper. > > bio too big device dm-0 (256 > 255) > > Again, some files cannot be read on the device. ok, dm (and some other layered block drivers) set q->max_sectors directly instead of using blk_queue_max_sectors(). Ingo