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Date: Wed, 28 Apr 2010 14:46:51 -0500
From: Kim Phillips <kim.phillips@freescale.com>
To: Xianghua Xiao <xiaoxianghua@gmail.com>
Subject: Re: [PATCH] Fix DEBUG_PAGEALLOC on 603/e300
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On Wed, 28 Apr 2010 14:15:50 -0500
Xianghua Xiao <xiaoxianghua@gmail.com> wrote:

> On Wed, Apr 28, 2010 at 2:22 AM, Benjamin Herrenschmidt
> <benh@kernel.crashing.org> wrote:
> > So we tried to speed things up a bit using flush_hash_pages() directly
> > but that falls over on 603 of course meaning we fail to flush the TLB
> > properly and we may even end up having it corrupt memory randomly by
> > accessing a hash table that doesn't exist.
> >
> > This removes the "optimization" by always going through flush_tlb_page()
> > for now at least.
> >
> > Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> > ---
> > Somebody with a 603 or e300 core based FSL SoC to try this out for me ?
> >
> This change works me on a 834x(e300) platform, tested with lmbench and
> a production-ready application with 2.6.33.3.

moi aussi, Ben: booted this on an 8377 and started a kernel build.
It seems to be progressing normally, I'm just not going to wait for it
to complete before hitting send :).

Kim