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Date:      Tue, 10 Feb 1998 21:04:37 +0000
From:      Brandon Stewart <rostewa2@vt.edu>
To:        freebsd-questions@FreeBSD.ORG
Subject:   isa.c, gravis ultrasound, and "dma channel already in use"
Message-ID:  <34E0C0E5.1F85AF27@vt.edu>
References:  <Pine.BSF.3.96.980203000221.11203B-100000@shell.futuresouth.com>

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My gravis ultrasound 16 non-pnp _did_ work on a version of the kernel
sources from a while back. I was recompiling the kernel recently and
this changed with an error that went: "isa_dma_acquire:dma channel
already in use". I tried everything, including the testing of all
possible dma values for the sound card (every one of them gave the same
error), and running the sound programs as the first thing upon logging
on. The only other dma in use is the floppy (2).

Frustrated, and brave, I found that the situation could be rectified if
the code pertaining to the variable dma_inuse was axed out of isa.c.
Sound now works perfectly, but I get hard-read errors every now and then
when making a port or some other things that goes like:

Feb 10 20:58:49 rostewa2 /kernel: wd2s1e: hard error reading fsbn 191709
of 191696-191791 (wd2s1 bn 355549; cn 176 tn 11 sn 40)wd2: status
59<rdy,seekdone,drq,err> error 40<uncorr>
Feb 10 20:58:49 rostewa2 /kernel: wd2s1e: hard error reading fsbn 191709
of 191696-191791 (wd2s1 bn 355549; cn 176 tn 11 sn 40)wd2: status
59<rdy,seekdone,drq,err> error 40<uncorr>
Feb 10 20:58:55 rostewa2 /kernel: wd2s1e: hard error reading fsbn 191709
of 191696-191711 (wd2s1 bn 355549; cn 176 tn 11 sn 40)wd2: status
59<rdy,seekdone,drq,err> error 40<uncorr>
Feb 10 20:58:55 rostewa2 /kernel: wd2s1e: hard error reading fsbn 191709
of 191696-191711 (wd2s1 bn 355549; cn 176 tn 11 sn 40)wd2: status
59<rdy,seekdone,drq,err> error 40<uncorr>

Could someone clue me in as to how to get FreeBSD to recognize that my
soundcard is _not_ in use and get rid of the hard read errors?

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