Re: [PATCH] low discontig highmem_start_page

From: Hugh Dickins
Date: Mon Nov 15 2004 - 16:08:42 EST

On Mon, 15 Nov 2004, Martin J. Bligh wrote:
> --On Monday, November 15, 2004 20:37:28 +0000 Hugh Dickins <hugh@xxxxxxxxxxx> wrote:
> > In the case of i386 CONFIG_DISCONTIGMEM CONFIG_HIGHMEM without highmem,
> > highmem_start_page was wrongly initialized (from a NULL zone_mem_map),
> > causing __change_page_attr to BUG on boot.
> Thanks, I'm not suprised that was broken - I never test without highmem ;-)

Yes, I imagine it's a pretty odd combination: the tmpfs symlink mpol
screwup shows I wasn't testing NUMA enough, and I often lower my mem
with mem= to increase the pressure, so hit this.


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