From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932411AbVIMTdU (ORCPT ); Tue, 13 Sep 2005 15:33:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932656AbVIMTdU (ORCPT ); Tue, 13 Sep 2005 15:33:20 -0400 Received: from pc1058.sks3.muni.cz ([147.251.210.58]:43142 "EHLO anubis.fi.muni.cz") by vger.kernel.org with ESMTP id S932411AbVIMTdT (ORCPT ); Tue, 13 Sep 2005 15:33:19 -0400 Date: Tue, 13 Sep 2005 21:34:02 +0200 From: Lukas Hejtmanek To: Alan Cox Cc: linux-kernel@vger.kernel.org Subject: Re: Oops 2.6.13-git6 Message-ID: <20050913193402.GI2383@mail.muni.cz> References: <20050912102011.GA2379@mail.muni.cz> <1126530670.30449.64.camel@localhost.localdomain> <20050912180038.GE2382@mail.muni.cz> <1126562475.30449.94.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1126562475.30449.94.camel@localhost.localdomain> X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.10i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 12, 2005 at 11:01:15PM +0100, Alan Cox wrote: > In a tiny subset of cases and for PIO modes only for devices that match > IDE generic PIO interfaces, providing the interface is not boot > detected, you don't remove it when in use and the moon is in the right > phase. I'm not sure, if I understand correctly. However, I meant, in the case of hdd as /dev/hda and cdrom as /dev/hdc, it works: /usr/bin/hotswap --ide-controller 1 -n probe-ide /usr/bin/hotswap --ide-controller 1 -n unregister-ide remove cdrom here after pluging cdrom back: /usr/bin/hotswap --ide-controller 1 -n probe-ide /usr/bin/hotswap --ide-controller 1 -n rescan-ide I think, DMA cannot be turned on if cdrom was not plugged in at boot time for some reason. But things above do not work if hdd is /dev/hda and cdrom is /dev/hdb, i.e. on the same channel. Again, is it an IDE conception bug? -- Lukáš Hejtmánek