On Thursday 26 August 2010 23:50:28 Alexander Best wrote:
> hi there,
> when i connect my mobile phone to a recent HEAD (amd64; r211393) i get the
> ugen3.3: <Samsung> at usbus3
> umass0: <USB Mass Storage Interface> on usbus3
> (probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
> (probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
> (probe0:umass-sim0:0:0:0): SCSI status: Check Condition
> (probe0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:28,0 (Not ready
> to ready change, medium may have changed) da0 at umass-sim0 bus 0 scbus9
> target 0 lun 0
> da0: <Samsung SGH-i550 1.0> Removable Direct Access SCSI-0 device
> da0: 40.000MB/s transfers
> da0: 3777MB (7736320 512 byte sectors: 255H 63S/T 481C)
> when i try to read stuff from the phone, it resets and i get this:
> ugen3.3: <Samsung> at usbus3 (disconnected)
> umass0: at uhub8, port 3, addr 3 (disconnected)
> (da0:umass-sim0:0:0:0): AutoSense failed
> (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0xa, scsi
> status == 0x0 (da0:umass-sim0:0:0:0): lost device
> (da0:umass-sim0:0:0:0): removing device entry
> it both happens if i mount it and read files or if i directly read
> something from the /dev/da0 device using `dd`.
> interestingly it always crashes after the same ammount of data read:
> dd: /dev/da0: Input/output error
> 4+0 records in
> 4+0 records out
> 4194304 bytes transferred in 3.333149 secs (1258361 bytes/sec)
> after a few retries the usb port i was using becomes unusable and nothing
> is being detected any longer.
> i'm pretty sure this didn't happen a few weeks ago, but now it does.
Have you loaded the usb_quirk.ko ?
Try adding a mass storage quirk for this mass storage device, for test unit
ready and synchronize cache.
Else look for changes in SCSI area.
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