:Alexander Polakov <polachok at gmail.com> added the comment: : :Can you please try this diff [1] ? I don't have hardware with both SMP and = :EC. : :[1] http://leaf.dragonflybsd.org/~polachok/acpi-ec-lock.diff : How can I tell if I have this feature? What is acpi-ec? -Matt Matthew Dillon <dillon at backplane.com>