Messages in this thread |  | | | Date | Fri, 14 Dec 2007 15:23:55 +0100 | | From | Ingo Molnar <> | | Subject | Re: [PATCH] x86_64: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc. | |
* Rene Herman <rene.herman@gmail.com> wrote:
> --- a/init/main.c
> +++ b/init/main.c
> @@ -229,10 +229,9 @@ static int __init obsolete_checksetup(char *line)
> }
>
> /*
> - * This should be approx 2 Bo*oMips to start (note initial shift), and will
> - * still work even if initially too large, it will just take slightly longer
> + * Initial value roughly corresponds to a 1 GHz CPU
> */
> -unsigned long loops_per_jiffy = (1<<12);
> +unsigned long loops_per_jiffy = 1000000000 / HZ;
>
> EXPORT_SYMBOL(loops_per_jiffy);
this is a factor of ~2400 increase - this will take an eternity to boot
on any older CPU.
Ingo
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