Jeremy Chadwick wrote:
On Tue, Nov 04, 2008 at 12:46:43PM -1000, Al Plant wrote:
Jeremy Chadwick wrote:
On Tue, Nov 04, 2008 at 08:13:34AM -1000, Al Plant wrote:
Julien Cigar wrote:
I've this problem too on almost all my machines. The only solution I've
found is to disable DMA (atapi_dma), but then performances are very poor
(and I'm still unable to burn a CD/DVD)

On Tue, 2008-11-04 at 16:03 +0100, Christoph Kukulies wrote:
Hi,

don't know whether it's the CDROM drive (a Creative 52x mx) or the motherboard (ASUS P4S8X) or what. Anyway, I tried to install a recent version of FreeBSD (7.1-BETA2) and the installation
hangs right in the boot process of the installation CD disc1.

I see

acd0: FAILURE - READ BIG MEDIUM ERROR asc=0x11 ascq=0x00
run_interrupt_driven_hooks: still waiting after 60 seconds for xpt_config
run_interrupt_driven_hooks: still waiting after 120 seconds for xpt_config
run_interrupt_driven_hooks: still waiting after 180 seconds for xpt_config

and so on.

Any clues?

--
Christoph Kukulies
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Aloha,

I have had similiar happen on 7 and 8 Freebsd installs recently.

If you install using safe mode it will work. Then in /boot/loader.conf

#boot/loader.conf
hw.ata.ata-dma=0
hw.ata.atapi_dma=0
There is no hw.ata.ata-dma tunable.  I think you mean hw.ata.ata_dma
(note: underscore, not hyphen).  If you really are using hw.ata.ata-dma,
it does nothing.  :-)

Also folks, please remember that "ATA DMA" is for hard disks, and
"ATAPI DMA" is for ATAPI devices (CD/DVD drives).
Error messages from xpt_* functions are from by the ATAPI-to-CAM
emulation layer (think: SCSI emulation for ATAPI devices), but are
likely signs of underlying compatibility problems between the CD/DVD
drive and FreeBSD, and not the fault of atapicam(4).

I'm not sure if there's a loader hint to disable xpt.

The error that comes up when you burn a CD seems to be bogus as I have used the CD's with out error for installing on other boxes.
The "READ BIG MEDIUM ERROR" often indicates that the CD/DVD drive does
not support a specific read operation mode; some CD/DVD manufacturers
don't implement this command for various reasons.

Aloha Jeremy,

Thanks for catching the - vs _ .

I hear you, but I have to do the hw settings like above or the servers wont boot they stick at a db>
or mountroot>

Those are two very different things.  A db> prompt indicates you're
hitting a kernel panic, while a mountroot> prompt indicates the OS can't
find your root filesystem.

I think the 7 and 8 series OS are looking for SATA and dont like the IDE drives I use.

I understand, but what I'm saying is that "hw.ata.ata-dma=0" (note the
hyphen) is not fixing/solving anything, because it contains a typo.

I know the atapi setting is for CD's and These are brand new DVD/CD RW burners fwiw.

A month or so back there were several people on line complaining about
this.

Maybe one of the FreeBSD comitters will have a look and see if something is wrong.

The "I get dropped to a mountroot prompt" problem has been reported many
times, and so far there haven't been any indications what causes it to
happen for people.

_____________

Aloha Jeremy,

The - was not in the installs. I typed it correctly in the several cases where it was used.

It will be interesting to see if anybody can find a solution to these issues.

I am not a coder just a long time user of FreeBSD, (since 3.*) I think it was. It is such a rock solid system that most of us are curious when something like this happens and its hard to find out why.

~Al Plant - Honolulu, Hawaii -  Phone:  808-284-2740
  + http://hawaiidakine.com + http://freebsdinfo.org +
  + http://aloha50.net   - Supporting - FreeBSD 6.* - 7.* - 8.* +
  < email: [EMAIL PROTECTED] >
"All that's really worth doing is what we do for others."- Lewis Carrol

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