On Fri, 2007-04-06 at 21:19 +0200, Pavel Machek wrote: > And why do _you_ need it? Unfortunately I do not know what the > decrementer is...? The decrementer is a sort of timer that counts down and once it overflows raises an exception in the CPU. Like a timer interrupt, but not coming from anything external. We need to be able to make sure we don't get a decrementer exception at some spots. Also, we need to call some platform function things at that point to prepare the system for suspend, and it needs to be done with interrupts enabled but after all devices are suspended. johannes
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