Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751512AbWIZO3n (ORCPT ); Tue, 26 Sep 2006 10:29:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751528AbWIZO3n (ORCPT ); Tue, 26 Sep 2006 10:29:43 -0400 Received: from ezoffice.mandriva.com ([84.14.106.134]:16648 "EHLO office.mandriva.com") by vger.kernel.org with ESMTP id S1751512AbWIZO3m (ORCPT ); Tue, 26 Sep 2006 10:29:42 -0400 To: Lee Revell Cc: Lennart Sorensen , Dominique Dumont , linux-kernel , alsa-user Subject: Re: Pb with simultaneous SATA and ALSA I/O X-URL: <20060925143838.GQ13641@csclub.uwaterloo.ca> <1159195859.2899.72.camel@mindpipe> From: Thierry Vignaud Organization: Mandriva Date: Tue, 26 Sep 2006 16:29:39 +0200 In-Reply-To: <1159195859.2899.72.camel@mindpipe> (Lee Revell's message of "Mon, 25 Sep 2006 10:50:59 -0400") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1117 Lines: 23 Lee Revell writes: > > Well i agree with the suggestion of trying a different PCI slot > > for the sb live. There is so much onboard stuff sharing > > interrupts on those boards that you might have problems because of > > that. Creative cards are not very good at dealing with anything > > other than ideal conditions from what I have gathered over the > > years. The manual for the board will tell you which IRQ goes to > > which slot, and I guess you want to avoid using a slot that shares > > with the SATA controller. > > It might not be interrupt related, it could be DMA starvation. This > has been observed with some SATA controllers while testing the -rt > patches. The symptom is that the latency traces show the machine > going in "slow motion". with the -rt patch, high resolution timer + dyn helps too in going in deep slow mode. - 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/