...already tested it Same behavior - modprobe / insmod ramzswap followed by rzscontrol /dev/ramzswap0 --init -> reboot during init. I am currently searching a method how to diagnose it. This basically seems to be a HW watchdog / reset issue. EDIT: btw, my HW rev is 2101. EDIT 2: last line of dmsg output is: [12475.862792] ramzswap: num_devices not specified. Using default: 1 and then straight into reboot.