The patch titled
x86 align highmem zone boundaries with NUMA
has been added to the -mm tree. Its filename is
x86-align-highmem-zone-boundaries-with-numa.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: Andy Whitcroft <apw@xxxxxxxxxxxx>
When in x86 NUMA mode we allocate struct pages's node local and map them into
the kernel virtual address space in the remap space. This space cuts into the
end of ZONE_NORMAL. When we round ZONE_NORMAL down we must ensure we maintain
the zone boundary constraint, we must round to MAX_ORDER.
Signed-off-by: Andy Whitcroft <apw@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/mm/discontig.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
diff -puN arch/i386/mm/discontig.c~x86-align-highmem-zone-boundaries-with-numa arch/i386/mm/discontig.c
--- devel/arch/i386/mm/discontig.c~x86-align-highmem-zone-boundaries-with-numa 2006-05-11 01:00:08.000000000 -0700
+++ devel-akpm/arch/i386/mm/discontig.c 2006-05-11 01:00:08.000000000 -0700
@@ -292,10 +292,13 @@ unsigned long __init setup_memory(void)
/* partially used pages are not usable - thus round upwards */
system_start_pfn = min_low_pfn = PFN_UP(init_pg_tables_end);
- system_max_low_pfn = max_low_pfn = find_max_low_pfn() - reserve_pages;
+ max_low_pfn = find_max_low_pfn() - reserve_pages;
printk("reserve_pages = %ld find_max_low_pfn() ~ %ld\n",
reserve_pages, max_low_pfn + reserve_pages);
printk("max_pfn = %ld\n", max_pfn);
+
+ system_max_low_pfn = max_low_pfn = zone_boundary_align_pfn(max_low_pfn);
+
#ifdef CONFIG_HIGHMEM
highstart_pfn = highend_pfn = max_pfn;
if (max_pfn > system_max_low_pfn)
_
Patches currently in -mm which might be from apw@xxxxxxxxxxxx are
pg_uncached-is-ia64-only.patch
squash-duplicate-page_to_pfn-and-pfn_to_page.patch
introduce-mechanism-for-registering-active-regions-of-memory.patch
have-power-use-add_active_range-and-free_area_init_nodes.patch
have-x86-use-add_active_range-and-free_area_init_nodes.patch
have-x86_64-use-add_active_range-and-free_area_init_nodes.patch
have-ia64-use-add_active_range-and-free_area_init_nodes.patch
zone-init-check-and-report-unaligned-zone-boundaries.patch
x86-align-highmem-zone-boundaries-with-numa.patch
zone-allow-unaligned-zone-boundaries.patch
root-mount-failure-emit-filesystems-attempted.patch
-
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