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. |
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* 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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