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SubjectRe: ATAPI Tape Driver Failure in Kernel 2.4.4, More
Tim,

Thanks for the input.

Sadly, it didn't work. I tried the SCSI emulation (which I already had running
on the CD-ROM, which works), but it fails for the tape.

With SCSI emulation turned on, the system recognizes the tape drive as SCSI.
However, an attempt at the following command:

mt -f /dev/st0 rewind

yields the following errors:

May 10 07:49:33 isaiah kernel: st0: Error with sense data: [valid=0] Info
fld=0x0,
Current st09:00: sense key Illegal Request
May 10 07:49:33 isaiah kernel: Additional sense indicates Invalid command
operation code

This all works OK in kernel 2.2.17. But it fails in 2.4.4.

Mark

Tim Moore wrote:
>
> Use SCSI emulation instead of ATAPI for the tape device. Also make sure
> your mt is >= 0.5.
>
> [tim@abit tim]# mt -v
> mt-st v. 0.5b
> [tim@abit linux]# dump -v
> dump 0.4b
> [tim@abit linux]# restore -v
> restore 0.4b17
>
> [dmesg exerpts - tape is /dev/st0]
> ...
> hdd: HP COLORADO 20GB, ATAPI TAPE drive
> ...
> scsi0 : SCSI host adapter emulation for IDE ATAPI devices
> scsi : 1 host.
> Vendor: HP Model: COLORADO 20GB Rev: 4.01
> Type: Sequential-Access ANSI SCSI revision: 02
> Detected scsi tape st0 at scsi0, channel 0, id 0, lun 0
> ...
>
> for 2.2.x .config:
>
> CONFIG_BLK_DEV_IDESCSI
> #CONFIG_BLK_DEV_IDETAPE
> CONFIG_SCSI
> CONFIG_CHR_DEV_ST
>
> > immediately after the backup completes and I try to write a file mark with "mt":
> >
> > May 9 16:50:49 isaiah kernel: ide-tape: Reached idetape_chrdev_open
> > May 9 16:52:05 isaiah kernel: hdd: irq timeout: status=0xd0 { Busy }
> > May 9 16:52:05 isaiah kernel: hdd: ATAPI reset complete
> > May 9 16:52:05 isaiah kernel: ide-tape: Couldn't write a filemark
> > May 9 16:52:06 isaiah kernel: ide-tape: Reached idetape_chrdev_open
> > May 9 16:54:06 isaiah kernel: ide-tape: ht0: DSC timeout
> > May 9 16:54:06 isaiah kernel: hdd: ATAPI reset complete
> > ...
>
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