From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270373AbTGRWgj (ORCPT ); Fri, 18 Jul 2003 18:36:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271903AbTGRWgi (ORCPT ); Fri, 18 Jul 2003 18:36:38 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:7128 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S271906AbTGRWgP (ORCPT ); Fri, 18 Jul 2003 18:36:15 -0400 Subject: Re: [PATCH] siimage.c - turning DMA on because of 'md' kernel thread. From: Alan Cox To: Kresimir Kukulj Cc: Linux Kernel Mailing List In-Reply-To: <20030718223425.GA21110@max.zg.iskon.hr> References: <20030718223425.GA21110@max.zg.iskon.hr> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1058568523.19558.108.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 18 Jul 2003 23:48:43 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Gwe, 2003-07-18 at 23:34, Kresimir Kukulj wrote: > resync. That means that disks are busy (in PIO mode), and when hdparm -d1 -X69 > executes, system freezes [if there is no disk/little activity hdparm cludge > passes ok - for example, if RAID-1 is clean so there is no resync]. The newest driver should put them into DMA automatically and set the limit. The other changes I'll check over but certainly look like they may be needed.