From aca14f33104bb7b101df23cdd36c520b7c66bcfd Mon Sep 17 00:00:00 2001 From: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Date: Wed, 29 Oct 2008 14:17:57 -0700 Subject: [IA64] fix the difference between node_mem_map and node_start_pfn makedumpfile[1] cannot run on ia64 discontigmem kernel, because the member node_mem_map of struct pgdat_list has invalid value. This patch fixes it. node_start_pfn shows the start pfn of each node, and node_mem_map should point 'struct page' of each node's node_start_pfn. On my machine, node0's node_start_pfn shows 0x400 and its node_mem_map points 0xa0007fffbf000000. This address is the same as vmem_map, so the node_mem_map points 'struct page' of pfn 0, even if its node_start_pfn shows 0x400. The cause is due to the round down of min_pfn in count_node_pages() and node0's node_mem_map points 'struct page' of inactive pfn (0x0). This patch fixes it. makedumpfile[1]: dump filtering command https://sourceforge.net/projects/makedumpfile/ Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Cc: Bernhard Walle <bwalle@suse.de> Cc: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com> --- arch/ia64/include/asm/meminit.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/ia64/include/asm/meminit.h') diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h index 6bc96ee54327..c0cea375620a 100644 --- a/arch/ia64/include/asm/meminit.h +++ b/arch/ia64/include/asm/meminit.h @@ -48,7 +48,6 @@ extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); */ #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) -#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) #ifdef CONFIG_NUMA extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); -- cgit v1.2.3