[3947] in linux-scsi channel archive
toshiba cdrom xm-3801 ta rev: 0206 underperforming
daemon@ATHENA.MIT.EDU (tron@silent.xs4all.nl)
Mon May 18 12:27:48 1998
Date: Mon, 18 May 1998 18:13:38 +0200 (CEST)
From: tron@silent.xs4all.nl
Reply-To: tron@silent.xs4all.nl
To: linux-scsi@vger.rutgers.edu
Hi there.
I have a scsi problem on my Linux machine.
The problem is most apparent when I try to copy a cd.
my writer is a teac model: CD-R55S rev: 1.0J at 0,04,00
my reader is a toshiba model: XM-3801TA rev: 0206 at 0,03,00
when I invoke the command to copy a cd, the toshiba driver will spin up
to fill the buffer. when the initial buffer has been filled the toshiba
driver will spin down resulting in a declining fifo to 0%.
at 4x speed this will result in a buffer underrun.
at 1x and 2x speed the toshiba drive will spin up again when the fifo has
nearly reached the 0% level, during the whole process the fifo will remain
between the 0 and 1%.
below is a cut-out of my "/var/log/messages" file which shows that there are
problems with the toshiba cdrom drive during the boot up process.
your help will be appreciated !.
-----------------------------------------------------------------------------------------
May 17 21:37:33 silent kernel: Linux PCMCIA Card Services 2.9.12
...
May 17 21:37:35 silent cardmgr[195]: socket 0: IBM SCSI adapter
May 17 21:37:35 silent cardmgr[195]: executing: 'insmod /lib/modules/2.0.32/pcmcia/fdomain_cs.o'
May 17 21:37:37 silent kernel: scsi0 <fdomain>: No BIOS; using scsi id 7
May 17 21:37:37 silent kernel: scsi0 <fdomain>: TMC-18C30 chip at 0x140 irq 7
May 17 21:37:37 silent kernel: scsi0 : Future Domain TMC-16x0 SCSI driver, version 5.44
May 17 21:37:37 silent kernel: scsi : 1 host.
May 17 21:37:38 silent kernel: Vendor: TOSHIBA Model: CD-ROM XM-3801TA Rev: 0207
May 17 21:37:38 silent kernel: Type: CD-ROM ANSI SCSI revision: 02
May 17 21:37:38 silent kernel: Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
May 17 21:37:38 silent kernel: Vendor: TEAC Model: CD-R55S Rev: 1.0J
May 17 21:37:38 silent kernel: Type: CD-ROM ANSI SCSI revision: 02
May 17 21:37:38 silent kernel: Detected scsi CD-ROM sr1 at scsi0, channel 0, id 4, lun 0
May 17 21:37:38 silent kernel: Device not ready. Make sure there is a disc in the drive.
... there is a disc in the drive ...
May 17 21:37:38 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
May 17 21:37:39 silent kernel: Device not ready. Make sure there is a disc in the drive.
May 17 21:37:39 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
May 17 21:37:39 silent kernel: Device not ready. Make sure there is a disc in the drive.
May 17 21:37:39 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
May 17 21:37:39 silent kernel: Device not ready. Make sure there is a disc in the drive.
May 17 21:37:39 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
...
May 17 21:37:42 silent kernel: Disc change detected.
May 17 21:37:42 silent cardmgr[195]: executing: './scsi start scd0'
May 17 21:37:43 silent kernel: Device not ready. Make sure there is a disc in the drive.
... the error message is repeated once more ...
May 17 21:37:43 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
May 17 21:37:43 silent kernel: Device not ready. Make sure there is a disc in the drive.
May 17 21:37:43 silent kernel: sr_photocd: ioctl error (TOSHIBA #1): 0x28000000
May 17 21:37:43 silent cardmgr[195]: executing: './scsi start scd1'
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