SMP in 32-bit arch/powerpc

Adrian Cox adrian at
Thu Aug 3 05:36:34 EST 2006

On Wed, 2006-08-02 at 08:32 -0500, Kumar Gala wrote:
> On Aug 2, 2006, at 3:25 AM, Adrian Cox wrote:
> > Is anybody else having problems with 32-bit SMP support in arch/ 
> > powerpc?
> > I'm using 2.6.17 as my current base, because I've not yet merged the
> > latest mpic changes.

> There are a few patches to prom.c that may help.  I know I've run  
> into this on other 32-bit systems booting from u-boot.  These patches  
> resolved my issue.
> * [PATCH] powerpc: Auto reserve of device tree blob
> * [POWERPC] Prevent duplicate lmb reservations for Device...

That was the problem. It now boots correctly, thanks.

Adrian Cox <adrian at>

More information about the Linuxppc-dev mailing list