On Tue, 5 Apr 2005, Rafael J. Wysocki wrote: > 1) We can treat uninterruptible tasks as non-freezable (in analogy to stopped > tasks) - if all of the other tasks are frozen, nothing can wake up an uninterruptible > task, so this seems to be a safe approach. Not true at all. An uninterruptible task can be woken up by an interrupt handler. Alan Stern