Re: heavy handed exit() in latest BK

From: Linus Torvalds (torvalds@transmeta.com)
Date: Sat Feb 08 2003 - 21:19:12 EST


On Sat, 8 Feb 2003, Roland McGrath wrote:
>
> As I said above, I think this race is possible in other uses of
> wake_up_process.

I don't think you have any other users (other than signals) that wake up
processes that aren't on some wait-queue.

And by the time we exit, we have better had removed outselves from all the
wait-queues, so I suspect signals are really the only thing that can wake
up a process after it died but before it's truly gone.

Anyway, I'll code up the SIGKILL changes that should make this a non-issue
(along with the bad SIGKILL/kernel-thread interaction).

                Linus

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