>> AS> Your kernel log did not show the part where the USB subsystem stopped >> AS> working. It only showed the part where you did rmmod.
i'm upgraded to 2.6.8.1 and send more informartion if problem be repeated now i see warnings in kern.log if exist dialup ppp-connection on acm-modem. i don't know is it usb-related or not.
kern.log
Description: Binary data
