From ada@not-enough.bandwidth.org  Fri May  9 07:48:53 1997
Received: from not-enough.bandwidth.org (slmel13p46.ozemail.com.au [203.108.202.62])
          by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id HAA07504;
          Fri, 9 May 1997 07:48:50 -0700 (PDT)
Received: (from ada@localhost)
          by not-enough.bandwidth.org (8.8.5/8.8.5) id AAA00454;
          Sat, 10 May 1997 00:48:46 +1000 (EST)
Message-Id: <199705091448.AAA00454@not-enough.bandwidth.org>
Date: Sat, 10 May 1997 00:48:46 +1000 (EST)
From: Ada T Lim <ada@not-enough.bandwidth.org>
Reply-To: ada@not-enough.bandwidth.org
To: FreeBSD-gnats-submit@freebsd.org, multimedia@freebsd.org
Subject: using MPU401 driver pagefaults kernel
X-Send-Pr-Version: 3.2

>Number:         3565
>Category:       kern
>Synopsis:       using MPU401 driver pagefaults kernel
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri May  9 07:50:04 PDT 1997
>Closed-Date:    Mon May 12 16:22:20 PDT 1997
>Last-Modified:  Tue Nov 27 19:24:05 PST 2001
>Originator:     Ada T Lim
>Release:        FreeBSD 2.2-STABLE i386
>Organization:
>Environment:
Using TB Tropez in MPU401 mode.  This is a hardware emulation of the MPU401 -
requires an OS be downloaded onto the card at bootup.

>Description:
Basically, using the Tropez in MPU401 mode pagefaults the kernel.
One tries to play a midi note, and *boom*, down goes the system.

>How-To-Repeat:
Boot DOS.  Run setupsnd.exe and load oswf.mot into the soundcard.
Either c-a-del or run fbsdboot.exe.
playmidi -e <somefile.mid>
*bang* there it goes.

This method (boot dos, configure the card, then boot to OS of choice)
has worked with OS/2 and Linux in the past.

>Fix:
Workaround:  use the really crappy OPL3 on the card.
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: gpalmer 
State-Changed-When: Mon May 12 16:22:20 PDT 1997 
State-Changed-Why:  
Duplicated by gnats s/w trouble. See kern/3564 
>Unformatted:
