With help from Agus Priyadi I worked around the Bug that forced me to disable the 2nd Core of my Dual-Core Notebook. To make it easier for other People to find the necessary Information, I repeat his Tips:
1. Download the Patch:
host:# wget -c http://chototsumoushinp.dip.jp/solaris/usbser.tar.bz2
2. Untar the Patch:
host:# tar -jxvf usbser.tar.bz2
3. Backup existing Files:
host:# mkdir ~/backup
host:# cp /kernel/misc/usbser ~/backup/usbser.i386.orig
host:# cp /kernel/misc/amd64/usbser ~/backup/usbser.amd64.orig
4. Apply Patch:
host:# pfexec cp usbser/i386/usbser /kernel/misc/usbser
host:# pfexec cp usbser/amd64/usbser /kernel/misc/amd64/usbser
// change owner file
host:# pfexec chown root:sys /kernel/misc/usbser /kernel/misc/amd64/usbser
5. Reboot:
host:# reboot
And thats all!
