Messages in this thread Patch in this message | | | Date | Mon, 15 Nov 2004 12:45:50 -0800 | From | "Martin J. Bligh" <> | Subject | Re: [PATCH] low discontig highmem_start_page |
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--On Monday, November 15, 2004 20:37:28 +0000 Hugh Dickins <hugh@veritas.com> 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 ;-)
M. > Signed-off-by: Hugh Dickins <hugh@veritas.com> > > --- 2.6.10-rc2/arch/i386/mm/discontig.c 2004-11-15 16:20:26.000000000 +0000 > +++ linux/arch/i386/mm/discontig.c 2004-11-15 17:01:26.000000000 +0000 > @@ -468,7 +468,7 @@ void __init set_max_mapnr_init(void) > if (high0->spanned_pages > 0) > highmem_start_page = high0->zone_mem_map; > else > - highmem_start_page = pfn_to_page(max_low_pfn+1); > + highmem_start_page = pfn_to_page(max_low_pfn - 1) + 1; > num_physpages = highend_pfn; > #else > num_physpages = max_low_pfn; > >
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