Re: 5.2-RELEASE: unable to mount cd-roms

On 1/13/2004 2:37 AM, Jon Noack wrote:
> I am unable to mount CD-ROMs with 5.2-RELEASE.  I get the following 
> error message:
> 
> cd9660: /dev/acd0: Input/output error
> 
> I first noticed this problem when a 5.2-RELEASE miniinst disc would not 
> use itself as installation media (I was forced to use FTP instead, even 
> though the drive had booted the disc into the installer fine).  I have 
> only been able to mount a CD-ROM if the disc is already in the drive 
> before booting the computer.  Subsequent attempts fail with the above 
> message.  Attempting to mount with "-v" does not provide any further 
> info.  Also, toggling "hw.ata.atapi_dma" does not change the behavior.
> 
> The drive is installed as the master on ata0.
> 
> The full dmesg:
> http://www.noacks.org/freebsd/dmesg.20040113.txt
> 
> $ grep acd0: dmesg.20040113.txt
> acd0: FAILURE - MODE_SENSE_BIG status=51<READY,DSC,ERROR> 
> sensekey=ABORTED COMMAND error=4<ABORTED>
> acd0: FAILURE - MODE_SENSE_BIG status=51<READY,DSC,ERROR> 
> sensekey=ABORTED COMMAND error=4<ABORTED>
> acd0: <CREATIVEDVD-ROM DVD2240E 03/18/98/1.8A> DVDROM drive at ata0 as 
> master
> acd0: read 16007KB/s (32015KB/s), 2KB buffer, WDMA2
> acd0: Reads: CDR, CDRW, CDDA, DVDROM, packet
> acd0: Writes:
> acd0: Audio: play, 65280 volume levels
> acd0: Mechanism: ejectable tray, unlocked
> acd0: Medium: CD-ROM 120mm photo disc
> acd0: WARNING - READ_BIG UDMA ICRC error (retrying request)
> acd0: FAILURE - READ_BIG status=51<READY,DSC,ERROR> sensekey=ILLEGAL 
> REQUEST error=0
> 
> Jon Noack

In the "5.2-CURRENT panic on startup after cvsup: probably recent ATA" 
thread, Søren said:
"<snip> one ATAPI device as master?  This will break lots-a-stuff if 
so... <snip>"

My DVD-ROM is the master of ata0.  Is this out of spec?  It worked fine 
with 4.x in this same configuration.

Jon