Jim Donelson wrote:
>     With many archs it's not possible to disable/enable interrupts in
>     user-space.
> 
> 
> But, then if you have an MMU, you have atomic instructions.

Why do you think so ?

Maybe with ARM, all of them that have an MMU do have the "load locked"
instruction. (I'm not very fluent with ARM.)

But this seems to be not true for NIOS2, Microblaze and Blackfin.

-Michael
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