freebsd stable - Jul 2003 - FreeBSD doesn't find my CD-RW and sometimes my DVD

Hi , I'm disperated

I've recently installed FreeBSD 4.8 ,and all at the first look was ok , 
this was only a try in a small partition , and now I have decided to 
install it in a bigger partition , so I've downloaded the 5.1 ISO (to 
give it a try too) and I've tried to BURN it with "burncd" . Now,
I've
noticed that in the DEV directory there are the devices "acd0a" and 
"acd0c" , I've thought that acd0a was DVD and acd0c was CD-RW...
but I
was wrong...

ACD0 is only the DVD , CD-RW (a Liteon 52x 24x 52x) isn't found at all!! 
Literally from DMESG:

ata0-slave: ATA identify retries excedeed

and sometimes it doesn't find my DVD too , with the message :

ata1-slave: ATA identify retries excedeed

so, I'm without CD and DVD :cry:

What I can do??

My system is:

Athlon XP 2400+

MSI KT4 Ultra (KT400) MoBo

The CDRW and DVD are attached to the two slave of the two ATA channels

Help me please , I've tried to remove the DVD in order to try to get 
CDRW recognised , but it doesn't work anyway

Thanks for help

Venerd?, luglio 25, 2003, alle 01:45 , Greg Panula ha scritto:

I don't use cable select :( I've ever used Jumpers.

I've tried to change the position on the cable on the drives.... no way.

:( Help :(

Bye

Marcello
> Lia Maggioni wrote:
>>
>> Hi , I'm disperated
>>
>> I've recently installed FreeBSD 4.8 ,and all at the first look was
ok ,
>> this was only a try in a small partition , and now I have decided to
>> install it in a bigger partition , so I've downloaded the 5.1 ISO
(to
>> give it a try too) and I've tried to BURN it with
"burncd" . Now, I've
>> noticed that in the DEV directory there are the devices
"acd0a" and
>> "acd0c" , I've thought that acd0a was DVD and acd0c was
CD-RW... but I
>> was wrong...
>>
>> ACD0 is only the DVD , CD-RW (a Liteon 52x 24x 52x) isn't found at 
>> all!!
>> Literally from DMESG:
>>
>> ata0-slave: ATA identify retries excedeed
>>
>> and sometimes it doesn't find my DVD too , with the message :
>>
>> ata1-slave: ATA identify retries excedeed
>>
>> so, I'm without CD and DVD :cry:
>>
>> What I can do??
>>
>
> Did you try setting the jumpers on the device(s) to slave instead of
> Cable-select?
>
> I've had mixed results with IDE devices using cable-select(cs).
>
> greg
>

On Fri, 25 Jul 2003 13:16:25 +0200
Lia Maggioni <voloterreno@tin.it> wrote:

LM> ACD0 is only the DVD , CD-RW (a Liteon 52x 24x 52x) isn't found at
LM> all!! Literally from DMESG:
LM> 
LM> ata0-slave: ATA identify retries excedeed

	I've had similar problems with my Samsung 48/24/48, I could
usually get it recognised by using atacontrol to detach and reattach
the channel. Don't do this to channel 0 if you are booting of ata0-master
though.

LM> and sometimes it doesn't find my DVD too , with the message :
LM> 
LM> ata1-slave: ATA identify retries excedeed
LM> 
LM> so, I'm without CD and DVD :cry:
LM> 
LM> What I can do??

	It might work better with them both on ata1 - I gave up and put
an LG drive in, works fine <clonk>.

	Anyone want a Samsung ?

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On Fri, 25 Jul 2003, Lia Maggioni wrote:
> ACD0 is only the DVD , CD-RW (a Liteon 52x 24x 52x) isn't found at
all!!
> Literally from DMESG:
> 
> ata0-slave: ATA identify retries excedeed
> 
> and sometimes it doesn't find my DVD too , with the message :
> 
> ata1-slave: ATA identify retries excedeed
I would recommend setting the jumpers rather than using the cable select;  
it simply removes one variable from the problem.

Take the CD off of the same cable as your hard drive.  I would probably 
replace the DVD with the CD-RW to see if that works.  Then I would 
probably try to put the DVD and CD-RW on the same cable.

Check that your ATA cable doesn't violate the ATA specs (I think that
18"
is the limit for an "in-spec" ATA cable.  Yes, that's *short*.)

I have been seeing this kind of intermittent problem with the ATA
subsystem since the ATA rewrite.  It has persisted into 5.1 Release. To be
fair, the failures are intermittent (read: really hard to debug), and I
haven't checked any of the old FreeBSD releases; so I am reluctant to
complain too loudly.

It seems that heterogeneous combinations of devices on the same cable give 
FreeBSD problems.  ie. a UDMA 100 and a PIO 4 device on the same cable.  
Normally this shows up as the slower device not being detected.  Putting 
slow devices on their own cable seems to cut down on the probability.

I presume that the issue is something along the lines of the chipsets in 
the slow device are slightly out of spec and the FreeBSD driver refusing 
to coddle broken hardware.  I am hesitant to blame FreeBSD as this may 
simply be a case of FreeBSD reporting the failure while other OS's simply 
degrade badly and hide the problem.

However, it is annoying as it's a complete crapshoot as to whether my ATA
CD-RW will be found on any given day.  I've tried 4 different
motherboards, 6 different types of cables, and 4 different CD-RW's.  All
of them exhibit some intermittent failures.

I'm really looking forward to Serial ATA.  Point to point connection 
should eliminate whole classes of this kind of breakage.

-a