Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267705AbUI1TV0 (ORCPT ); Tue, 28 Sep 2004 15:21:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267737AbUI1TV0 (ORCPT ); Tue, 28 Sep 2004 15:21:26 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:37095 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S267705AbUI1TVX (ORCPT ); Tue, 28 Sep 2004 15:21:23 -0400 Subject: Re: IRQ blocking when reading audio CDs From: Lee Revell To: Jens Axboe Cc: gundolfk@web.de, Christoph Bartelmus , linux-kernel In-Reply-To: <20040927055234.GA2288@suse.de> References: <20040926120849.GG3134@lilienthal> <20040927055234.GA2288@suse.de> Content-Type: text/plain Message-Id: <1096399282.2852.24.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Tue, 28 Sep 2004 15:21:22 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 860 Lines: 21 On Mon, 2004-09-27 at 01:52, Jens Axboe wrote: > On Sun, Sep 26 2004, Gundolf Kiefer wrote: > > Dear Jens (& Christoph), > > > > on my media PC (a Pentium II 350 MHz running Debian Woody with Kernel > > 2.4.25), I have problems using LIRC 0.6.6 with a serial IR reveiver when at > > the same time some application (cdparanoia, xmms/Audio CD reader) is > > reading audio data from a CD. > > Upgrade to 2.6, it can use DMA for cdda extraction. If you cannot for > some reason, Andrew had an ide-cd hack to enable dma in 2.4 for this. Seems like it should also work in PIO mode as long as unmask_irq is set. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/