USB DataTraveller works but.

[Rowdy]

Wojciech Puchar wrote:
> with lot of errors after i umount'ed dos filesystem
> 
> Nov 29 12:00:35 chylonia kernel: umass1: Phase Error, residue = 0
> Nov 29 12:00:35 chylonia kernel: (da4:umass-sim1:1:0:0): Synchronize 
> cache failed, status == 0x4, scsi status == 0x0
> Nov 29 12:00:35 chylonia kernel: umass1: Phase Error, residue = 0
> Nov 29 12:00:35 chylonia kernel: sio4: 8 more silo overflows (total 50)
> Nov 29 12:00:35 chylonia kernel: (da4:umass-sim1:1:0:0): Synchronize 
> cache failed, status == 0x4, scsi status == 0x0
> Nov 29 12:00:35 chylonia kernel: umass1: Phase Error, residue = 0
> Nov 29 12:00:35 chylonia kernel: (da4:umass-sim1:1:0:0): Synchronize 
> cache failed, status == 0x4, scsi status == 0x0
> root at chylonia# Nov 29 12:00:35 chylonia kernel: umass1: Phase Error, 
> residue = 0
> Nov 29 12:00:35 chylonia kernel: (da4:umass-sim1:1:0:0): Synchronize 
> cache failed, status == 0x4, scsi status == 0x0

I have had similar problems, and a quick search revealed this:

http://lists.freebsd.org/pipermail/freebsd-bugs/2005-November/015744.html

That suggests to make a small change to scsi_da.c (in
/usr/src/sys/cam/scsi) and presumably recompile the kernel.

I have not tried thisat yet (still trying to schedule an upgrade to 6.0
- I intend to patch the file and recompile as part of the upgrade), but
there are several references I found to suggest that it should work.

Rowdy