aha1542 and philips cdr strange failure.

Dale Scheetz (dwarf@polaris.net)
Thu, 4 Jul 1996 20:38:45 -0400 (EDT)

As the subject says:

aha1542 scsi controller running a philips CDD 522 CDR.

When I try to copy a full CD to a partition on the hard disk (plenty
larger) I always experience a lockup at the same place on the disk, with
the following error messages:

CD-ROM error: Current error sr0b:00:sns=f05
Raw sense data:0xf0 0x00 0x05 0x00 0x03 0x73 0x23 0x0a 0x00 0x00 0x00 0x00
0x63 0x00 0x00 0x00
command was: 0x08 03 73 22 02 00
CD-ROM I/O error: dev 0b:00, sector 904328

The above block repeats endlessly. Luckily I can switch to another VC and
kill the job.

The strange part about this is, on another (DOS) system the CD is
perfectly readable, even across the area of failure under Linux.

Since this also involves a different drive, controler, and os, I am unable
to narrow down the problem.

One final note: I only get this problem with CDs written by the Philips
drive. I seem to be able to copy commercial CDs just fine (at least an old
infomagic cd worked)

This leads me to believe this has something to do with the odd block size
the Philips writes. (I don't remember details. In older sr.c code I had
to modify the sector size checking to get it to mount a disk that it had
written. I haven't had to do that since 1.3.9x.)

Any help would be appreciated,


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aka Dale Scheetz Phone: 1 (904) 877-0257
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Black Creek Critters e-mail: dwarf@polaris.net

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