sudo mv /lib/udev/rules.d/85-hdparm.rules /lib/udev/rules.d/85-hdparm.disabled fixes this issue for me. I am using the new firewire subsystem.
jeremy@hephaestus:~$ lsmod | grep firewire firewire_sbp2 15009 2 firewire_ohci 25343 0 firewire_core 51537 2 firewire_sbp2,firewire_ohci crc_itu_t 1715 1 firewire_core
sudo mv /lib/udev/ rules.d/ 85-hdparm. rules /lib/udev/ rules.d/ 85-hdparm. disabled fixes this issue for me. I am using the new firewire subsystem.
jeremy@ hephaestus: ~$ lsmod | grep firewire sbp2,firewire_ ohci
firewire_sbp2 15009 2
firewire_ohci 25343 0
firewire_core 51537 2 firewire_
crc_itu_t 1715 1 firewire_core