FreeLists / haiku-appserver / [haiku-appserver] Re: CPU-idle-loop and HALT instruction?

[Stephan Assmus <superstippi@xxxxxx>]

> > Or, is it already in there and can I somehow enable it?
> 
> 
> From src/system/kernel/arch/x86/arch_cpu.c:
> 
> void
> arch_cpu_idle(void)
> {
>     switch (smp_get_num_cpus()) {
>         case 0:
>             panic("You need at least 1 CPU to run Haiku\n");
>         case 1:
>             asm("hlt");
>         default:
>             break;
>     }
> }
> 
> So, if you have more than one CPU, the only thing you can do is change this
> code. There might be a reason, why it is implemented like it is, though. On
> the other hand there's also no comment that you computer will explode when
> executing "hlt" on a multi CPU machine either...

I seem to recall that on my dual CPU machine, there is simply two idle 
threads running. Or is my memory failing me?

Best regards,
-Stephan