Subject: Re: Need help to understand why kdump is for 64 bit PPC only

From: Michael Ellerman <[email-masked]>
Date: Tue, 16 Dec 2008 07:33:04 +1100

On Mon, 2008-12-15 at 13:35 -0600, Kumar Gala wrote:
> On Dec 15, 2008, at 12:58 PM, Frank Fan wrote:
> 
> > Hello,
> >
> > I am working on a freescale MPC8572 CPU board and use 32 bit  
> > Linux2.6.28.  When I enable 64 bit, it shows "kdump" in "kernel  
> > options". Otherwise, "kdump" is disabled.
> > Can someone give me some hint why kdump is for 64 bit PPC only?
> 
> Probably because no one has implemented or tested it on ppc32/8572.

Pretty much, the 32-bit version of default_machine_kexec() is pretty
naïve, but you never know it might work.

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person