Re: suspend-to-{RAM,disk} for 2.5.17

[Linus Torvalds]

On Wed, 22 May 2002, Pavel Machek wrote:
>
> I need to know more than they are sleeping. I also know they are
> sleeping *without holding any semaphores*. I need working system to be
> able to save state to disk. That's why I hacked it into signal
> handler.

Sorry, I should have been more clear. I think the signal handler approach
is fine for user processes, I was just wondering why you needed anything
like that for kernel threads..

When a kernel thread is sleeping, I don't see that it has much state at
all: it will be re-started anyway on the next boot, and I don't see it
having any "state".

(I didn't think it through enough - never mind saving the stack page,
because I don't think there is anything at all interesting there to save).

		Linus