Re: lwkt_msgport.c

[Peter Kadau <peter.kadau@xxxxxxxxxxxxxxxx>]

Hi !

> functions does not add very much overhead as its just a value
> being incremented by one.
*Taking the teacher's hat*
By 32, not one.
*Dropping the teacher's hat*

> #ifdef INVARIANTS
>     if (td->td_pri < 0)
>         crit_panic();
> #endif
As you see here it will overflow at an value of > (mumble)
(munmble could be something like (mumble some power of two minus one))
for an i386 int (quite a way to go I'll admit).

> If one were to add a simple print statement into crit_enter()
> to print the current value of the nesting depth, you'll find we
> are several hundreds deep already.
Fortunately not deeper... ;-)

Cheers and still a
Happy New Year
Peter

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