From nobody  Wed Dec  4 05:53:35 1996
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Date: Wed, 4 Dec 1996 05:53:35 -0800 (PST)
From: rob@ugh.net.au
To: freebsd-gnats-submit@freebsd.org
Subject: Machine locks when playing .au sound file using pca device
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>Number:         2150
>Category:       kern
>Synopsis:       Machine locks when playing .au sound file using pca device
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    sos
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec  4 06:00:02 PST 1996
>Closed-Date:    Mon Jan 27 10:48:25 PST 1997
>Last-Modified:  Mon Jan 27 10:52:38 PST 1997
>Originator:     Rob Wise
>Release:        2.1.5-RELEASE
>Organization:
>Environment:
FreeBSD WonK.hobart.tased.edu.au 2.1.5-RELEASE FreeBSD 2.1.5-RELEASE #17: Mon Dec  2 20:49:50 EST 1996     root@WonK.hobart.tased.edu.au:/usr/src/sys/compile/WONK  i386

>Description:
I have no sound card in my machine, but i wanted to be able to play .au sound files through my pc speaker.  Someone told me about the pca device, which i then enabled in my kernel.  When i try to play a file using "cat soundfile.au > /dev/pcaudio" it plays fine for about a second, then the machine locks up.  I know its not the files because i tried 2 different ones, both of which play fine on my mac.
>How-To-Repeat:
Problem can be repeated by trying to play another sound file :)
>Fix:

>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->sos 
Responsible-Changed-By: jkh 
Responsible-Changed-When: Sat Dec 28 23:08:15 PST 1996 
Responsible-Changed-Why:  
This is Soren's department (and his driver, I believe!) 
State-Changed-From-To: open->closed 
State-Changed-By: sos 
State-Changed-When: Mon Jan 27 10:48:25 PST 1997 
State-Changed-Why:  

Hmm, I can only reproduce this on my old 16Mhz 386sx which dies 
from the interrupt load. I guess we should state that slow machines 
cant handle this (or we should invent something like the linux 
bogomips to guess  at the machine speed). 
>Unformatted:
