Hi Yinghai,

FYI, there are new compile warnings show up in

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-x86-mm
head:   09a914b6eae71662d6e6342a4797fab502f7e314
commit: 22fc2ac16867eba3389268f7073b7869e65898c9 [14/16] x86: get early page table from BRK
config: i386-randconfig-b130 (attached as .config)

All warnings:

arch/x86/mm/init.c: In function 'find_early_table_space':
arch/x86/mm/init.c:301:3: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'phys_addr_t' [-Wformat]
arch/x86/mm/init.c:301:3: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'long unsigned int' [-Wformat]

vim +301 arch/x86/mm/init.c

fc43eb76 (Yinghai Lu 2012-09-30  288) static void __init find_early_table_space(unsigned long start,
fc43eb76 (Yinghai Lu 2012-09-30  289) 					  unsigned long good_end,
fc43eb76 (Yinghai Lu 2012-09-30  290) 					  unsigned long tables)
fc43eb76 (Yinghai Lu 2012-09-30  291) {
fc43eb76 (Yinghai Lu 2012-09-30  292) 	phys_addr_t base;
fc43eb76 (Yinghai Lu 2012-09-30  293) 
fc43eb76 (Yinghai Lu 2012-09-30  294) 	base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
fc43eb76 (Yinghai Lu 2012-09-30  295) 	if (!base)
fc43eb76 (Yinghai Lu 2012-09-30  296) 		panic("Cannot find space for the kernel page tables");
fc43eb76 (Yinghai Lu 2012-09-30  297) 
22fc2ac1 (Yinghai Lu 2012-10-06  298) 	init_memory_mapping(base, base + tables);
22fc2ac1 (Yinghai Lu 2012-10-06  299) 	printk(KERN_DEBUG "kernel direct mapping tables from %#llx to %#llx @ [mem %#010lx-%#010lx]\n",
22fc2ac1 (Yinghai Lu 2012-10-06  300) 		base, base + tables - 1, early_pgt_buf_start << PAGE_SHIFT,
22fc2ac1 (Yinghai Lu 2012-10-06 @301) 		(early_pgt_buf_end << PAGE_SHIFT) - 1);
22fc2ac1 (Yinghai Lu 2012-10-06  302) 
fc43eb76 (Yinghai Lu 2012-09-30  303) 	pgt_buf_start = base >> PAGE_SHIFT;
fc43eb76 (Yinghai Lu 2012-09-30  304) 	pgt_buf_end = pgt_buf_start;
fc43eb76 (Yinghai Lu 2012-09-30  305) 	pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);
fc43eb76 (Yinghai Lu 2012-09-30  306) }
fc43eb76 (Yinghai Lu 2012-09-30  307) 
85793c88 (Jacob Shin 2012-09-30  308) static struct range pfn_mapped[E820_X_MAX];
85793c88 (Jacob Shin 2012-09-30  309) static int nr_pfn_mapped;

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0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation