🚀 go-pugleaf

"Tony" <anthonyw@no_spam.bigpond.net.au> writes:

> SCSI problem here with failed CD-writing to Yamaha CRW8824 on Linux
> system, may not be OS problem.

IIRC that's what I've got here, too. 8,8,24 it says on the front, and it's
a yamaha...

[snip]
> Track 01: Total bytes read/written: 31062864/31062864 (13207 sectors).
> Starting new track at sector: 13359

Erm, is there any reason why it would be writing multiple tracks? What have
you specified as a set of files to be written?

[snip]
> cdrecord: Input/output error. write_g1: scsi sendcmd: retryable error
> Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 21 00 00 00
> status: 0x2 (CHECK CONDITION)
> Sense Key: 0x5 Illegal Request, Segment 0
> Sense Code: 0x21 Qual 0x00 (logical block address out of range) Fru 0x0
> Sense flags: Blk 0 (not valid)
[snip]
> As the above log shows there seems to be a problem with the SCSI
> commands. I can not find the cause of it.
> 
> If I do the writing in "dummy" mode ie. switch off the laser, the result
> is the same. The error does not occur at any particular time. It is
> random when it fails.

So it's somewhere between kernel and cd-writer inclusive, excluding the
laser. Sounds like it's in the SCSI neck of the woods.

> I have tried a number of things from setting the SCSI devices to run
> slower, swapped cards around in the motherboard and checked cables. 
> Nothing seems to be wrong.

Weird. What make scsi card do you have, and what version of the kernel are
you using?

Me, I use a powerbook's built-in MESH scsi controller, with kernel 2.4.4
(it's the only one of the 2.4.x series I've managed to make compile on
ppc!). But that works; I've also had success with an Initio/adaptec card on
x86.

~Tim
-- 
Bagpuss gave a big yawn,                    |piglet@stirfried.vegetable.org.uk
and settled down to sleep.                  |http://spodzone.org.uk/