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From: "Michael C. Shultz" <ringworm01@gmail.com>
To: freebsd-questions@freebsd.org
Date: Wed, 28 Dec 2005 17:49:48 -0800
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Message-Id: <200512281749.48934.ringworm01@gmail.com>
Cc: Jesse Sheidlower <jester@panix.com>
Subject: Re: Hard lockup with USB speakers after an hour
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On Wednesday 28 December 2005 17:25, Jesse Sheidlower wrote:
> I'm trying to diagnose and fix a problem I'm having with my
> USB audio. After some difficulty getting things set up, I had
> managed to understand what I needed to do to get everything
> working. Now, when I listen to USB speakers, everything will
> work fine for an hour or so, and then I'll get a freeze so
> total that I can only fix it by pulling the power cord and
> battery out of my laptop. There doesn't seem to be anything
> specific that triggers this (it's not caused by adjusting the
> volume, or switching back to a different output device, it
> just happens in the middle of audio being played). There's
> nothing logged in /var/log/messages.
>
> What can I do to further diagnose this, and fix it? I'm
> running FreeBSD 6.0-RELEASE on an IBM ThinkPad X23; the
> speakers attach at pcm1.
>
> Thanks.
>
> Jesse Sheidlower

Run top and see if something is hogging the cpu when it locks up....

-Mike