First i like to thank
Manuel Bouyer <bouyer@antioche.eu.org>
for his help.

Seems that changing to tlp0 soves the problem,
networking is working ok.


I have this problem, every time y open, tranfer or
use a large file, more 10M.
Kernel starts sending scsi errors to the console and the machine 
hangs.
Any idea??

Thanks in advance.


sd0 at scsibus0 target 0 lun 0: <IBM, DNES-309170W, SAH0> SCSI3 0/direct
fixed
sd0: 8748 MB, 11474 cyl, 5 head, 312 sec, 512 bytes/sect x 17916240
sectors
sd0: sync (25.0ns offset 30), 16-bit (80.000MB/s) transfers, tagged
queueing