The following reply was made to PR kern/32473; it has been noted by GNATS.

From: "Mike M. Volokhov" <mishka@intostroy.com>
To: Ben Collver <collver@peak.org>
Cc: gnats-bugs@netbsd.org, zb@ispid.com.pl, netbsd-users@NetBSD.org,
	tech-kern@NetBSD.org
Subject: Re: kern/32473: GUS PnP audio device seem to be broken in NetBSD
 3.0
Date: Fri, 14 Apr 2006 10:25:01 +0300

 On Thu, 13 Apr 2006 20:04:24 -0700 Ben Collver wrote:
 
 [snip]
 > I reproduced the problem in NetBSD 2.0, and the backtrace looks pretty
 > much the same as the 3.0 backtrace.
 
 Oh, thank you very much for testing this!
 
 >  Since this release pre-dates Tamura
 > Kent's changes, I am guessing he is not responsible for the problem.
 
 Yes, it is. We have also built the kernels just before and after
 kent-audio1 merging and problem was obscured on both too. So mentioned
 changes definitively not related here.
 
 > The error message I get is:
 > 
 > isa0: dma start on free channel 5
 > panic: _isa_dmastart
 > Stopped in pid 526.1 (audioplay) at   netbsd:cpu_Debugger+0x4:   leave
 > db>
 
 So we should investigate it in usual way :-) Could you support my very
 limited kernel knowledge by recompiling kernel with following options
 and posting resulting kernel messages, panic output, and backtrace here:
 
 options DIAGNOSTIC
 options DEBUG
 options ISADMA_DEBUG
 options DEBUG_ISAPNP
 options AUDIO_DEBUG
 options GUSPLAYDEBUG
 
 Thanks in advance.
 
 --
 Mishka.
 
 P.S. I've asked to add this PR to the 4.0 showstoppers list.
 
 P.P.S. Any help from competent people would be appreciated :-)