From owner-freebsd-multimedia@FreeBSD.ORG Tue Feb 28 00:04:11 2006 Return-Path: <owner-freebsd-multimedia@FreeBSD.ORG> X-Original-To: multimedia@FreeBSD.org Delivered-To: freebsd-multimedia@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0BDF916A420; Tue, 28 Feb 2006 00:04:11 +0000 (GMT) (envelope-from scottl@samsco.org) Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id 55DC743D62; Tue, 28 Feb 2006 00:04:07 +0000 (GMT) (envelope-from scottl@samsco.org) Received: from [10.10.3.185] ([69.15.205.254]) (authenticated bits=0) by pooker.samsco.org (8.13.4/8.13.4) with ESMTP id k1S03tna044441; Mon, 27 Feb 2006 17:03:56 -0700 (MST) (envelope-from scottl@samsco.org) Message-ID: <44039366.7080605@samsco.org> Date: Mon, 27 Feb 2006 17:03:50 -0700 From: Scott Long <scottl@samsco.org> User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20060206 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ariff Abdullah <ariff@FreeBSD.org> References: <20060227105017.77c18b20.ariff@FreeBSD.org> <200602271251.32890.mi+mx@aldan.algebra.com> <44034054.3090104@samsco.org> <200602271321.33055.mi+mx@aldan.algebra.com> <20060228025154.01db3dff.ariff@FreeBSD.org> <44035532.1060408@samsco.org> <20060228043735.33bddf5d.ariff@FreeBSD.org> <44036500.4090802@samsco.org> <20060228051140.31f56b4f.ariff@FreeBSD.org> In-Reply-To: <20060228051140.31f56b4f.ariff@FreeBSD.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.0 required=3.8 tests=none autolearn=failed version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on pooker.samsco.org Cc: mi+mx@aldan.algebra.com, re@FreeBSD.org, multimedia@FreeBSD.org Subject: Re: today's 6.1 would not boot here X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions <freebsd-multimedia.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-multimedia>, <mailto:freebsd-multimedia-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-multimedia> List-Post: <mailto:freebsd-multimedia@freebsd.org> List-Help: <mailto:freebsd-multimedia-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-multimedia>, <mailto:freebsd-multimedia-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 28 Feb 2006 00:04:11 -0000 Ariff Abdullah wrote: > On Mon, 27 Feb 2006 13:45:52 -0700 > Scott Long <scottl@samsco.org> wrote: > >>Ariff Abdullah wrote: >> >>>On Mon, 27 Feb 2006 12:38:26 -0700 >>>Scott Long <scottl@samsco.org> wrote: >>> >>> >>>>Is this a problem with calibrating the sample rate on the chip? >>>>There was a problem with snd_ich several years ago where the >>>>calibration would fail or be unpredictable during boot. I fixed >>> >>>it >my moving the calibration code to a separate step that gets >>>run via >the config_intrhook API. That made it work reliably >>>during boot >and when loaded after boot. Is this new problem >>>somehow related to >this? Since I was the one who fixed it in the >>>past, I'd be happy to >help now. >>> >>>It seems related. From my naked eyes, I can sense that the >>>interrupt was trigered during/before sampling rate calibration, >>>and since the calibration expect to not trigger any interrupt, >>>this will cause unexpected behaviour especially for this MPSAFEed >>>driver *and* during boot. Besides, the pcm construction also done >>>before the calibration, unlike snd_atiixp where the hook is use to >>>bring everything alive after the necessary step is finished. >>> >>> >>>I'll come up with something shortly. >>> >> >>Maybe move the bus_setup_intr() call to after the calibration? If >>the driver doesn't need interrupts until after calibration, I think >>that this would cleanly solve the problem. >> > > Good idea, or, simply ignore interrupt trigger until all has been > calibrated. Pretty much like this: > > http://people.freebsd.org/~ariff/test/ich.c > Yup, that looks good too. Scott