From owner-freebsd-current@FreeBSD.ORG Fri Oct 22 01:42:31 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 25D8A16A4CE for ; Fri, 22 Oct 2004 01:42:31 +0000 (GMT) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 14B4043D58 for ; Fri, 22 Oct 2004 01:42:31 +0000 (GMT) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id 09CE672DD4; Thu, 21 Oct 2004 18:42:31 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id 0241272DCB; Thu, 21 Oct 2004 18:42:30 -0700 (PDT) Date: Thu, 21 Oct 2004 18:42:30 -0700 (PDT) From: Doug White To: Travis Poppe In-Reply-To: <20041021145448.07c993d3@maya.liquidx.org> Message-ID: <20041021184144.U41366@carver.gumbysoft.com> References: <20041019111518.1f6a76a4@maya.liquidx.org> <20041021145448.07c993d3@maya.liquidx.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-current@freebsd.org Subject: Re: Mild sound distortion with FreeBSD 5.3-BETA7 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Oct 2004 01:42:31 -0000 On Thu, 21 Oct 2004, Travis Poppe wrote: > > > I've recently noticed a mild sound distortion in XMMS and other > > > applications that output sound. I'm not sure when I started noticing > > > this, but I don't believe it has always been present in the 5.x > > > branch(and if it has, I haven't noticed it up until a month or two > > > ago). > > > > Problems with sound disruptions can usually be traced to running with > > WITNESS and/or INVARIANTS compiled into your kernel. These debugging > > options cause enough interrupt latency to cause sound problems. Even > > setting the sysctl debug.witness_watch=0 (I guess its > > debug.witness.watch=0 now) will usually clear the issue right away, or > > reduce the disruptions significantly (for that boot only). > > I don't have these debugging options compiled into my kernel, so it must > be something else. Anything sharing the your sound card's interrupt? -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org