Re: [PATCH] kprobes for 2.5.30

From: Linus Torvalds (
Date: Tue Aug 06 2002 - 00:48:38 EST

On Tue, 6 Aug 2002, Rusty Russell wrote:
> I am reading from this that we *should* be explicitly disabling
> preemption in interrupt handlers if we rely on the cpu number not
> changing underneath us, even if it's (a) currently unneccessary, and
> (b) arch-specific code.

But do_irq() already does that.

You mean _exception_ handlers. It's definitely not unnecessary. Exceptions
can very much be preempted.


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