Re: [PATCH] Make bootsector stub 16-bit-only (i386)

Andi Kleen
2007-05-08T12:27:22Z

On Tuesday 08 May 2007 13:25, H. Peter Anvin wrote:
> Andrew Morton wrote:
> >> # Normalize the start address
> >> - jmpl $BOOTSEG, $start2
> >> + jmpw $BOOTSEG, $start2
> >
> > Sigh, another blow struck in the ongoing struggle between my Vaio and the
> > rest of the world.
> >
> > Stone-cold black-screen lockup immediately upon boot.
> >
> > Stock FC5 install, config at
> > http://userweb.kernel.org/~akpm/config-sony.txt
>
> Andrew, I'm seriously starting to think there is something fundamentally
> wrong with that test setup.

I agree. The patch above does not change any code in the running
kernel and is not even used in a normal kernel boot. Andrew,
can you please double check that?

> [*] On the other hand, as I discovered in the process,
> arch/i386/kernel/cpu/transmeta.c apparently gets miscompiled on my
> development system for top-of-Linus. This is a Linux bug and not gcc's
> fault. The following code:

You should have put that into a different mail (is there a electron shortage
somewhere now? @) Ok, thanks for the well researched bug report. Will fix in
my tree.

-Andi