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DateTue, 6 Aug 2002 09:35:17 -0700 (PDT)
FromLinus Torvalds <>
SubjectRe: [PATCH] kprobes for 2.5.30
On Tue, 6 Aug 2002, Rusty Russell wrote:
> 
> > You mean _exception_ handlers. It's definitely not unnecessary. Exceptions 
> > can very much be preempted.
> 
> The patch changes traps 1 and 3 (debug & int3) to interrupt gates
> though.  

Yes, but then it enables interrupts at one point.

And I'm not saying that is wrong - I'm saying that the warning is really 
because you didn't tell the kernel that it was _not_ wrong. The warning is 
a "I got called with interrupts disabled, not nobody actually told me that 
I shouldn't reschedule. I will refuse to reschedule (exactly because 
interrupts weren't enabled), but I don't like the fact that somebody 
apparently did things behind my back".

Think of the kernel as a grumpy girlfriend that you just stood up, and 
bring flowers next time.

		Linus

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