Re: regression: ide-floppy doesn't work with IOMEGA IDE ZIP drive

2007-03-14 Thread Stanislav Brabec
Albert Lee wrote:
 Tejun Heo wrote:

  Hmmm... weird.  Your drive bears the same model name as Stanislav's.  I
  don't think the low level driver is causing the difference.  They both
  use the standard libata HSM implementation.  Any ideas?  Stanislav, can
  you try to connect that zip drive to another IDE controller?

 Maybe it's also worth a try to replace the medium, cable or even the
 drive itself to rule out the possibility of hardware problem.

I'll try it. I cannot replace the drive, I don't have any spare one, but
my colleague has. He will try it on his machine. So let's wait for
result.

Looking at the syslog in Novell bug 232086 in detail, following line may
indicate hardware failure:
usb 5-1: string descriptor 0 read error: -22

My drive is a slave on bus, where master is a modern Seagate ST3160812A.

On my system I see two regressions:
- One between year 2002 kernels and SuSE Linux 10.0:
  Delay with packet command initiated yet DRQ isn't asserted before
  first read access, then the read will succeed.
  I did not yet reproduce this regression just now on my hardware.
- Second between SuSE 10.1 and 10.2:
  Delay with packet command initiated yet DRQ isn't asserted before
  any attempt to access, then it will fail.
  This regression is reproducible just now on my hardware, but still may
  be caused by hardware problems raised by a slightly different
  initialization order.

Tejun Heo wrote:
 [libata]
 And, as the device requires custom high level driver, libata fails
 miserably.  Would it be worth to try support these devices?  Or are
 they just too outdated to put the effort in?

As far as I remember, it was working without any special driver with
ide-scsi.

-- 
Best Regards,

Stanislav Brabec
software developer
-
SUSE LINUX, s. r. o.  e-mail: [EMAIL PROTECTED]
Lihovarska 1060/12tel: +420 284 028 966
190 00 Praha 9fax: +420 284 028 951
Czech Republichttp://www.suse.cz/

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Re: regression: ide-floppy doesn't work with IOMEGA IDE ZIP drive

2007-03-13 Thread Stanislav Brabec
Jeff Garzik wrote:
 Tejun Heo wrote:
  [libata]
  And, as the device requires custom high level driver, libata fails
  miserably.  Would it be worth to try support these devices?  Or are
  they just too outdated to put the effort in?
 
 What SCSI peripheral device type does it report, when booted under libata?

Internal IOMEGA ZIP 100 IDE (manufactured by NEC).

ata1.01: ATAPI, max PIO2, CDB intr
ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata1.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0x12 data 36 in
 res 00/00:00:00:00:00/00:00:00:00:00/00 Emask 0x2 (HSM violation)
ata1: soft resetting port
ata1.01: configured for PIO2
ata1: EH complete
ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata1.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0x12 data 36 in
 res 00/00:00:00:00:00/00:00:00:00:00/00 Emask 0x2 (HSM violation)
ata1.01: configured for PIO2
ata1: EH complete
ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata1.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0x12 data 36 in
 res 00/00:00:00:00:00/00:00:00:00:00/00 Emask 0x2 (HSM violation)
ata1: soft resetting port
... and so on

For more see
https://bugzilla.novell.com/show_bug.cgi?id=232086
(complete ide-floppy and libata logs are there)

-- 
Best Regards,

Stanislav Brabec
software developer
-
SUSE LINUX, s. r. o.  e-mail: [EMAIL PROTECTED]
Lihovarska 1060/12tel: +420 284 028 966
190 00 Praha 9fax: +420 284 028 951
Czech Republichttp://www.suse.cz/

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