Re: hail marry (booting PowerMac 8600)

[Jeff Kenton <jkenton at tilera dot com>]

On 02/02/2011 02:41 PM, kevin diggs wrote:
> Hi,
>
> I have narrowed this down to one file, drivers/scsi/mesh.c which is
> the host adapter driver for the internal SCSI controller on a
> PowerMac8600. If I compile this file with 4.1.2 and everything else
> with 4.3.5 then the beast will boot.
>
> Anyone have any thoughts on what changed (something optimizery I would
> guess?) between 4.1.2 and 4.3.5?

strict-aliasing? Try building with -fnostrict-aliasing and see if it helps.


> Thanks!
>
> kevin
>
> P.S.:  MAN I'M FREAKIN' FREEZIN!
>
> On Mon, Jan 24, 2011 at 10:15 PM, kevin diggs<diggskevin38@gmail.com>  wrote:
> > Hi,
> >
> > If I enable SMP then I can get a 4.3.5 compiled kernel to boot. I also
> > tried 4.2.4 with no success (no SMP). 4.1.2 WILL boot (again no SMP).
> >
> > Is there anyone here that knows more than I do (which means they know
> > something - I know nothing) about the intricacies of Linux kernel
> > building, especially on PowerPC.
> >
> > Thanks!
> >
> > kevin