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Subject: Re: [PATCH] force stackpointer alignment in 64bit kernel
From: Paul Nasrat <pnasrat@redhat.com>
To: Olaf Hering <olh@suse.de>
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Date: Fri, 03 Mar 2006 18:45:58 -0500
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On Sat, 2006-03-04 at 00:23 +0100, Olaf Hering wrote:
>  On Fri, Mar 03, Segher Boessenkool wrote:
> 
> > > The stackpointer came from 32bit code, which appearently has different
> > > alignment rules than 64bit code. The chain was yaboot -> zImage ->  
> > > vmlinux
> > > Force the stackpointer to be 16 byte aligned.
> > 
> > The stack pointer is required to be 16-byte aligned when the
> > client program is started, on 32-bit as well.
> 
> See http://ozlabs.org/pipermail/linuxppc-dev/2006-March/021342.html
> 
> Either yaboot and/or zImage need to force a stack alignment, or we apply
> the 2 liner.

Happy to look at/receive patches for yaboot.  I'll look on Monday.

Paul