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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This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:31 EST