Messages in this thread Patch in this message | | | From | Thomas Bogendoerfer <> | Subject | [PATCH] Fix crash with FLAT_MEMORY and ARCH_PFN_OFFSET != 0 | Date | Tue, 18 Dec 2007 13:03:00 +0100 (CET) |
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When using FLAT_MEMORY and ARCH_PFN_OFFSET is not 0, the kernel crashes in memmap_init_zone(). This bug got introduced by commit c713216deebd95d2b0ab38fef8bb2361c0180c2d
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> ---
mm/page_alloc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b5a58d4..496f7f3 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3427,7 +3427,7 @@ static void __init_refok alloc_node_mem_map(struct pglist_data *pgdat) mem_map = NODE_DATA(0)->node_mem_map; #ifdef CONFIG_ARCH_POPULATES_NODE_MAP if (page_to_pfn(mem_map) != pgdat->node_start_pfn) - mem_map -= pgdat->node_start_pfn; + mem_map -= (pgdat->node_start_pfn - ARCH_PFN_OFFSET); #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ } #endif
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