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From: kuku@freebsd.org
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Subject: CD audio: ioctl error cmd=CDIOCREADSUBCHANNEL
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>Number:         16598
>Category:       kern
>Synopsis:       xmcd stopped by racd0c ioctl error while transfers on second CD were active
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Feb  9 03:30:23 PST 2000
>Closed-Date:    Tue May 29 12:28:29 PDT 2001
>Last-Modified:  Tue May 29 12:29:14 PDT 2001
>Originator:     Christoph Kukulies
>Release:        FreeBSD 3.4-RELEASE i386
>Organization:
I. Physikalisches Institut RWTH Aachen
>Environment:
FreeBSD 3.4 R, Gigabyte BX2000 (Intel 440 BX chipset),128MB Mem
>Description:

I had fired up xmcd v2.5 pl1 and listened to the CD Stanley Turrentine/Shirley
Scott "Never Let Me Go" which was inserted into /dev/racd0c on the
second IDE controller of a GA-BX2000 (Gigabyte) motherboard while
I had mounted the FreeBSD 3.4 CD # 3 in the second CD ROM drive, a 48x drive
and was executing the command tar cf packages | (cd /c ; tar xvf -)
when the following line appeared on the xterm and the music ceased tp play:

CD audio: ioctl error on /dev/racd0c: cmd=CDIOCREADSUBCHANNEL errno=5

Here is the portion of dmesg:
wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ff on isa
wdc0: unit 0 (wd0): <IBM-DPTA-372050>, DMA, 32-bit, multi-block-16
wd0: 19574MB (40088160 sectors), 39770 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (atapi): <FX400_02/B02>, removable, intr, iordis
acd0: drive speed 689KB/sec, 256KB cache
acd0: supported read types:
acd0: Audio: play, 255 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: CD-ROM 120mm audio disc loaded, unlocked
wdc1: unit 1 (atapi): <ATAPI 48X CDROM/VER-3.30>, removable, accel, dma, iordy
acd1: drive speed 1375 - 8250KB/sec, 128KB cache
acd1: supported read types: CD-R, CD-RW, CD-DA, packet track
acd1: Audio: play, 255 volume levels
acd1: Mechanism: ejectable tray
acd1: Medium: CD-ROM 120mm data disc loaded, unlocked




>How-To-Repeat:

Connect two CD drives, play music on one (the master) and do a data
intensive transfer on the second drive.


>Fix:

 none

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: sos 
State-Changed-When: Tue May 29 12:28:29 PDT 2001 
State-Changed-Why:  
Obsoleted by the new ATA driver in 4.x 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=16598 
>Unformatted:
