Re: System hangs when using USB 3.0 HD with on Ubuntu

[Jonas Schwertfeger <jschwertfeger@gmail.com>]

On 04/16/2010 08:20 PM, Sarah Sharp wrote:
> I'll see if I can find a contact for this.  I need a couple more details
> so they can reproduce this.  Jonas, did you ever test the Buffalo drive with
> Mark Lord's fix to set the sector count to "1"?  Which version of hdparm
> were you using?  Is that version just in Lucid, or is it in Karmic too?

Yes, I did try it with Mark's latest version (9.29b) which uses a sector 
count of "1" (version 9.29) and, in addition, uses ATA_12 (instead of 
ATA_16) for IDENTIFY (9.29b).  The issue exists in Karmic and Lucid.

It seems the report I sent back to Mark, once I tested 9.29b, didn't go 
to all of you but just Mark.  Here it is:

--------------------------------------------------------
The good news: It doesn't crash the chip anymore. The drive is still 
mounted fine after executing hdparm.

The bad news: From the hdparm output it seems like the chip still 
doesn't play nice.

/dev/sdb:
outgoing cdb:  a1 08 2e 00 01 00 00 00 40 ec 00 00 00 00 00 00
data:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: ATA_12 status=0x0, host_status=0x0, driver_status=0x0
SG_IO: bad response (not CHECK_CONDITION)
Trying legacy HDIO_DRIVE_CMD
outgoing cdb:  a1 08 2e 00 01 00 00 00 40 a1 00 00 00 00 00 00
data:  40 00 ff 3f 37 c8 10 00 00 00 00 00 3f 00 00 00
SG_IO: ATA_12 status=0x2, host_status=0x0, driver_status=0x8
SG_IO: sb[]:  72 0b 00 00 00 00 00 0e 09 0c 00 04 00 01 00 00 00 00 00 
00 40 51 00 00 00 00 00 00 00 00 00 00
SG_IO: desc[]:  09 0c 00 04 00 01 00 00 00 00 00 00
       ATA_12 statQ err\x04 nsect\x01 lbal\0 lbam\0 lbah\0 dev@
I/O error, ata_op=0xa1 ata_status=0x51 ata_error=0x04
  HDIO_DRIVE_CMD(identify) failed: Input/output error
  readonly      =  0 (off)
  readahead     = 256 (on)
  geometry      = 121601/255/63, sectors = 1953525168, start = 0
--------------------------------------------------------

I didn't get a reply from Mark on this yet.  Alan, does this output mean 
something to you?

-Jonas