From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932150AbVILVf7 (ORCPT ); Mon, 12 Sep 2005 17:35:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932272AbVILVf7 (ORCPT ); Mon, 12 Sep 2005 17:35:59 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:58525 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932150AbVILVf6 (ORCPT ); Mon, 12 Sep 2005 17:35:58 -0400 Subject: Re: Oops 2.6.13-git6 From: Alan Cox To: Lukas Hejtmanek Cc: linux-kernel@vger.kernel.org In-Reply-To: <20050912180038.GE2382@mail.muni.cz> References: <20050912102011.GA2379@mail.muni.cz> <1126530670.30449.64.camel@localhost.localdomain> <20050912180038.GE2382@mail.muni.cz> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Mon, 12 Sep 2005 23:01:15 +0100 Message-Id: <1126562475.30449.94.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Llu, 2005-09-12 at 20:00 +0200, Lukas Hejtmanek wrote: > However, in the case of 2 IDE channels hotplug program works with unregister and > rescan commands. I think there is still problem with DMA, but it works partly. 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. > Another issue, when cdrecord finalizes DVD or CD, then whole IDE channel is > blocked. Is that hardware problem or some preemption problem in kernel? This is an IDE protocol limitation. See the cdrecord manual for other options if you want to avoid that occurring.