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From: camattin@unity.ncsu.edu (Chris A. Mattingly)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Misc questions (sound card; scsi cdrom)
Date: 11 Oct 1996 00:27:10 GMT
Organization: North Carolina State University
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Occasionally I get the following message showing up:

Oct  9 22:40:59 cam-home /kernel: Sound: DMA timed out - IRQ/DRQ config error?

I'm trying to figure out why this is, since under *shudder* Win95, nothing
shows a conflict nor error.  Here's some relevant information:

Oct 10 20:01:28 cam-home /kernel: ahc0 <Adaptec 2940 SCSI host adapter>
   rev 3 in t a irq 11 on pci0:14
Oct 10 20:01:34 cam-home /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa
Oct 10 20:01:34 cam-home /kernel: sio1 at 0x2f8-0x2ff irq 3 on isa
Oct 10 20:01:34 cam-home /kernel: lpt0 at 0x378-0x37f irq 7 on isa
Oct 10 20:01:34 cam-home /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
Oct 10 20:01:35 cam-home /kernel: sb0 at 0x220 irq 5 drq 1 on isa
Oct 10 20:01:35 cam-home /kernel: sb0: <SoundBlaster 16 4.13>
Oct 10 20:01:35 cam-home /kernel: sbxvi0 at 0x0 drq 5 on isa
Oct 10 20:01:35 cam-home /kernel: sbxvo0: <SoundBlaster 16 4.13>
Oct 10 20:01:35 cam-home /kernel: sbmidi0 at 0x330 on isa
Oct 10 20:01:35 cam-home /kernel:  <SoundBlaster MPU-401>

I can't recall what did this, but I believe it was while trying to 
record from /dev/audio.


The other question is what can I do to resolve this 'annoyance'?

Oct 10 20:01:29 cam-home /kernel: cd1(ahc0:6:X): ILLEGAL REQUEST
   asc:25,0 Logical unit not supported

Where X goes from 1 to 6.  What is causing the kernel to probe that cdrom
on each lun at that id?  (A jumper on the cdrom maybe?)


Thanks for any and all help,
-Chris
-- 
Chris Mattingly           | My views are not necessarily those of my employers
camattin@ncsu.edu         |
NCSU/ITECS [ECO]          | "Good programmers write good code; great 
Systems Programmer        | programmers 'borrow' good code."  -- Mike Gancarz