Is AmigaOS pre-emptive or co-operative? ;)

[Karlos]

Surely a pre-emptive multitasking OS requires that a task can be pre-empted, that is can be made to vacate the CPU by normal switching operation the kernel. If you've disabled interrupts, then you've basically shot down the kernel system that enables pre-empting to function.

This is a security issue, not a cooperative versus pre-emptive one.

I submit that bloodline is correct

"I say, Mr. Torvalds, what would you know about kernels anyway?!", he said, posting from his linux box... :lol:

[Karlos]

I dunno, the arguments around monolithic v microkernel have some good points on both sides. Also, Darwin is not what I'd call a microkernel. At best it has elements of both and is probably best described as a "hybrid", which may be no bad thing.

I guess that's why I'm looking for Darwin solutions to replace my current linux based boxes (not an easy task).

Why, do they not do what you require?

A lot of these design arguments are very interesting but in the real world, if it isn't broken, why fix it?

[Karlos]

Goodness me no, Linux meets and exceeds all requirements, but since I am running these boxes/boards as a hobby I would prefer to fit my ideology rather than practicality... I guess the same reason people still want to run PPC CPUs even though they offer no real world advantage.

Ah, righty-ho. Carry on then :hammer:

[Karlos]

...that suits my predilection for Obj-C at the moment

Pervert :lol: