On Sun, 30 Dec 2007, Ingo Molnar wrote:
> * H. Peter Anvin <[email protected]> wrote:
> > Ingo Molnar wrote:
> >> * Bodo Eggert <[email protected]> wrote:
> >>> BTW: The error function in linux-2.6.23/arch/i386/boot/compressed/misc.c
> >>> uses while(1) without cpu_relax() in order to halt the machine. Is this
> >>> fixed? Should it be fixed?
> >>
> >> this is early bootup so there's no need to be "nice" to other cores or
> >> sockets - none of them are really running.
> >>
> >
> > It probably should actually HLT, to avoid sucking power, and stressing
> > the thermal system. We're dead at this point, and the early 486's
> > which had problems with HLT will lock up - we don't care.
>
> ok. Like the patch below?
>
> - while(1); /* Halt */
> + asm("cli; hlt"); /* Halt */
The other users would loop around the hlt. Cargo Cult?
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