Date: Thu, 21 Oct 2004 10:25:56 -0700 (PDT) From: Doug White <dwhite@gumbysoft.com> To: Travis Poppe <tlp@LiquidX.org> Cc: freebsd-current@freebsd.org Subject: Re: Mild sound distortion with FreeBSD 5.3-BETA7 Message-ID: <20041021102205.C37069@carver.gumbysoft.com> In-Reply-To: <20041019111518.1f6a76a4@maya.liquidx.org> References: <20041019111518.1f6a76a4@maya.liquidx.org>
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On Tue, 19 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). If the sysctl doesn't exist then you don't have WITNESS. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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