Yes, I see the same behavior.  Interrupts from the sound device are
coming in during recording, but my cat of /dev/sound, which is how I usualy
record, is blocked in "aud_rd".  I'll look and see if I can figure out what
might be causing the problem.  Thank you for the feedback.  At least the
problem is not isolated, and, it isn't fixed.  I suspect the the issue is
either with audio.c or wss.c, since it breaks both from pnpbios and isa,
and most likely audio.c, because the changes seem most significant there.
If I figure it out I'll send-pr.
-thanks
-Brian
On Aug 9, 10:29pm, "Jonathan A. Kollasch" wrote:
} Subject: Re: Recording with wss(4) hardware seems to be broken in NetBSD-3
} 
} --2VXyA7JGja7B50zs
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} On Thu, Aug 09, 2007 at 10:32:47AM -0700, Brian Buhrow wrote:
} > 	Hello.  I have an old Dell Inspiron 3500 which has been running NetBSD
} > for years.  For many years I used it as my digital audio recording machin=
} e,
} > for making Cds from vinyl records, recording meetings and the like.  About
} > a year ago, I upgraded it to NetBSD-3, but didn't have occasion to use its
} > recording capabilities.  Recently, I began work on a project which will
} > require its trusty service again.  When I pulled it out to test it, I fou=
} nd
} > that recording didn't work with its 3.x kernel.  All recording processes
} > would get stuck in "aud_rd" and no bytes would be written to disk.
} > Playing, however, seems to work fine.  Thinking that perhaps because the
} > machine had been sitting idle for a long time, perhaps it has just died, I
} > downgraded it to NetBSD-2.0, where recording works as expected.
} >=20
} > 	Here's what the attachment looks like under both NetBSD-2.x and 3.x
} >=20
} >=20
} > wss1 at pnpbios0 index 17 (CSC0000, WSS/SB)
} > wss1: io 530-537 388-38b 220-22f, irq 5, DMA 1 0
} > wss1: CS4237B
} > audio0 at wss1: full duplex, mmap
} > opl0 at wss1: model OPL3
} > midi0 at opl0: WSS Yamaha OPL3
} >=20
} > Has anyone else experienced this same problem when going from NetBSD-2.x =
} to
} > 3.x?  Recording with other audio(4) drivers seems to work OK.  Does anyone
} > have any ideas where I might look to solve this issue?  I can live with
} > NetBSD-2.x on this box, but it would be nice to know that the problem is
} > fixed going forward after 2.x.  I have not tried a 4.x kernel, perhaps I
} > should.
} 
} Well, wss(4) recording doesn't work here in 4.99.26.  audiorecord
} ends up getting a EINVAL in the setup phase and bails out.
} cat(1)ing /dev/sound acts about like a blocking /dev/null.
} vmstat -i shows the device interrupting while trying
} to record.
} 
} There have been some seemingly significant modifications
} between 2.x and 3.x in the CVS logs.  It's hard
} (well, harder than I want to work on this now)
} to track as there are like 3-7 files that wss(4) comprises of.
} 
} > Any thoughts would be greatly appreciated.
} 
} Good luck.  Also, ISA hardware isn't fun anymore.
} 
} 	Jonathan Kollasch
} 
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>-- End of excerpt from "Jonathan A. Kollasch"