Date: Mon, 15 Mar 2004 23:28:34 -0800
From: Andrew Morton <akpm@osdl.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: neilb@cse.unsw.edu.au, linux-kernel@vger.kernel.org
Subject: Re: 2.6.4-mm1 - 4g patch breaks when X86_4G not selected
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Ingo Molnar <mingo@elte.hu> wrote:
>
> 
> * Andrew Morton <akpm@osdl.org> wrote:
> 
> > I'll have a play with your .config, see if I can reproduce it.  If not
> > I'll squeeze off -mm3 and would ask you to retest on that if poss.
> 
> i tried Neil's bzImage and it hung on a stock PC too.

Me too, with CONFIG_DEBUG_PAGEALLOC.  We had a fatal bug around that.

However it seems that Neil's machine is dying with CONFIG_DEBUG_SLAB=y,
CONFIG_DEBUG_PAGEALLOC=n, for which we have no explanation.  It seems that
we're getting use-after-free errors against the pgd's.

Maybe it was the early-x86-cpu-detection.patch bug biting in two places -
let me brew rc1-mm1 and we'll see.

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