[wellylug] DSE ieee1394 external hard drive operation problems

[Jonathan Harker]

Damon Lynch wrote:

> Hi,
> 
> Does anyone have any experience with the DSE 3.5" Drive Case USB 2.0 and
> Firewire (an external hard drive case) and linux?  DSE says it works
> with Linux.  I can get Mandrake's 2.4.22 kernel to recognise and mount
> the drive, but actually transferring files can be very slow, due to the
> system appearing to periodically freeze for a time.  And it appears that
> reliability is not as strong as one would like.  
> 
> dmesg has a lot of output like this:
> 
> ieee1394: sbp2: aborting sbp2 command
> Write (10) 00 11 14 48 f7 00 00 f8 00
> ieee1394: sbp2: aborting sbp2 command
> Test Unit Ready 00 00 00 00 00
> ieee1394: sbp2: reset requested
> ieee1394: sbp2: Generating sbp2 fetch agent reset
> ieee1394: sbp2: aborting sbp2 command
> Write (10) 00 00 00 24 b7 00 00 f8 00
> ieee1394: sbp2: aborting sbp2 command
> Write (10) 00 0a 31 7d 9f 00 00 f8 00
> ieee1394: sbp2: aborting sbp2 command
> 
> ....
> 
> till finally this:
> 
> Write (10) 00 11 c9 b0 47 00 00 18 00
> I/O error: dev 08:01, sector 4178577736
> journal_bmap_R9e635429: journal block not found at offset 3528 on
> sd(8,1)
> Aborting journal on device sd(8,1).
> ext3_abort called.
> EXT3-fs abort (device sd(8,1)): ext3_journal_start: Detected aborted
> journal
> Remounting filesystem read-only
> EXT3-fs error (device sd(8,1)) in start_transaction: Journal has aborted
> EXT3-fs error (device sd(8,1)) in start_transaction: Journal has aborted
> ...
> 
> I've connected the unit to an nforce2 chipset.  I think the DSE unit
> uses a Genesys chipset.  I noted on the linux ieee 1394 website,
> http://www.linux1394.org/view_device.php?id=650 , that a user said a
> model with perhaps a similar chipset said "Has performance issues in
> copying big files if sbp2 is loaded without "sbp2_serialize_io=1".  How
> do I make this 1, instead of the default of 0?
> 
> Thanks in advance for any help.

Fixed in Mandrake 9.2

Cheers,
J