Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override

[Bodo Eggert]

On Sun, 30 Dec 2007, Ingo Molnar wrote:
> * H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> > Ingo Molnar wrote:
> >> * Bodo Eggert <7eggert@xxxxxx> 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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