From owner-freebsd-stable  Wed Aug 23 12:12:43 2000
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From: Vivek Khera <khera@kciLink.com>
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Date: Wed, 23 Aug 2000 15:12:25 -0400 (EDT)
To: stable@freebsd.org
Subject: ATAPI CD-ROM fails to mount on 4.1-STABLE
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I updated my 4.1-STABLE yesterday.  Today I tried to read a CD-ROM
(the FreeBSD 4.1-R install CD, and also one generic data CD I made a
while back that was ok on this system before) and the mount never
completes.

Here's what happens.

I insert the CD and type "mount /cdrom".  The mount command returns.
The /var/log/messages syslog contains this entry:

 /kernel: cd9660: RockRidge Extension

I do an "ls /cdrom" and I get either

 -r-xr-xr-x  1 root  wheel  0 Dec 31  1969 /cdrom*

or some generic "input/output error" from ls.  Before the mount, the
/cdrom directory looks like this:

 drwxr-xr-x  2 khera  wheel  512 Aug 11 14:13 /cdrom


The syslog now contains this entry:

 /kernel: RRIP without PX field?

I can no longer umount or "eject -f" the drive:

 umount: unmount of /cdrom failed: Invalid argument

 eject: Device busy

However, after running eject, I can manually eject the disk.

The "mount" command says this:

/dev/acd0c on /cdrom (cd9660, local, nodev, nosuid, read-only, mounted by khera, reads: sync 3 async 0)

It matters not whether I run mount as root or as a user.

The only way out is a reboot.  Booting the 4.1-R kernel.GENERIC, I can
mount and read the CD-ROM just fine.  It worked fine as of last friday
as well, when I last did an update and used the CD-ROM.  To me, this
rules out hardware problems.

I just cvsup'd again, and rebuilt a kernel (with DMA for ATAPI turned
off) but that made no difference. (about 2:30pm EDT 23-AUG-2000)

Any clues as to what to do to get back my CD-ROM drive functionality?

Anyone else experiencing this trouble?

Thanks.


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