USB Mass Storage under 5.0

[Jan Grant]

On Mon, 12 May 2003, Gerard Samuel wrote:

> Well unfortunately I didn't get too far.
> FreeBSD core dumps, and freezes on me when I turn on the camera.  I had
> to type out the error on another
> computer to provide here, so it may or may not be 100% accurate.
> I was able to duplicate this back to back.
> Anyone knows whats going on?? Am I SOL??  Thanks.
> ---------------------------------------------------
> gladiator# umass0: Fuji Photo Film USB Mass Storage, rev 1.10/10.00, addr 2
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0: < USB-DRIVEUNIT 1.00> Removable Direct Access SCSI-0 device
> da0: 1.000MB/x transfers
> da0: 0MB (1 0 byte sectors: 0H 0S/T 0c)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I'd guess that this was the cause of the problem: the device isn't
getting even a faked geometry, and there may well be byte offset ->
sector calculation that doesn't expect 0-byte sectors.

You should probably get in touch with the -usb mailing list and raise a
PR.

> Fatal trap 18: interger divide fault while in kernel mode

-- 
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/
stty intr ^m