Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 30 Jul 2002 17:33:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 30 Jul 2002 17:33:38 -0400 Received: from air-2.osdl.org ([65.172.181.6]:8911 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id ; Tue, 30 Jul 2002 17:32:37 -0400 Subject: Re: [PATCH] 2.5.29: some compilation fixes for irq frenzy [OSS + i8x0 audio] From: Andy Pfiffer To: Alan Cox Cc: "linux-kernel@vger.kernel.org" In-Reply-To: <1028069255.8510.46.camel@irongate.swansea.linux.org.uk> References: <1028062608.964.6.camel@andyp> <1028067951.8510.44.camel@irongate.swansea.linux.org.uk> <1028063953.964.13.camel@andyp> <1028069255.8510.46.camel@irongate.swansea.linux.org.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.5 Date: 30 Jul 2002 14:35:56 -0700 Message-Id: <1028064957.964.16.camel@andyp> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 789 Lines: 21 On Tue, 2002-07-30 at 15:47, Alan Cox wrote: > On Tue, 2002-07-30 at 22:19, Andy Pfiffer wrote: > > As luck would have it, I booted the kernel and played the tunes on a > > 2-way P4 Xeon system. Nothing wedged, but then again, I didn't try to > > break it. > > > > So, what did I break? > > SMP support I think. A lot of the save_flags/cli stuff you changed looks > like it needs to also lock out interrupts on the other processors, > otherwise you can get a DMA pointer being updated under you. > Thanks. I'll take a look at it. --Andy - 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/