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Yinghai Lu b7ad149d62 x86: reenable support for system without on node0 
One system doesn't have RAM for node0 installed.

SRAT: PXM 0 -> APIC 0 -> Node 0
SRAT: PXM 0 -> APIC 1 -> Node 0
SRAT: PXM 1 -> APIC 2 -> Node 1
SRAT: PXM 1 -> APIC 3 -> Node 1
SRAT: Node 1 PXM 1 0-a0000
SRAT: Node 1 PXM 1 0-dd000000
SRAT: Node 1 PXM 1 0-123000000
ACPI: SLIT: nodes = 2
 10 13
 13 10
mapped APIC to ffffffffff5fb000 (        fee00000)
Bootmem setup node 1 0000000000000000-0000000123000000
  NODE_DATA [000000000000e000 - 0000000000014fff]
  bootmap [0000000000015000 -  00000000000395ff] pages 25
Could not find start_pfn for node 0
Pid: 0, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #14

Call Trace:
 [<ffffffff80bab498>] free_area_init_node+0x22/0x381
 [<ffffffff8045ffc5>] generic_swap+0x0/0x17
 [<ffffffff80bab0cc>] find_zone_movable_pfns_for_nodes+0x54/0x271
 [<ffffffff80baba5f>] free_area_init_nodes+0x239/0x287
 [<ffffffff80ba6311>] paging_init+0x46/0x4c
 [<ffffffff80b9dda5>] setup_arch+0x3c3/0x44e
 [<ffffffff80b978be>] start_kernel+0x6f/0x2c7
 [<ffffffff80b971cc>] _sinittext+0x1cc/0x1d3

This happens because node 0 is not online, but the node state in
mm/page_alloc.c has node 0 set.

        nodemask_t node_states[NR_NODE_STATES] __read_mostly = {
                [N_POSSIBLE] = NODE_MASK_ALL,
                [N_ONLINE] = { { [0] = 1UL } },

So we need to clear node_online_map before initializing the memory.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 		2008-02-18 20:54:14 +01:00
..
alpha Introduce path_put() 2008-02-14 21:13:33 -08:00
arm Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-02-10 14:09:44 -08:00
avr32 ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
blackfin d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
cris cris: import memset.c from newlib: fixes compile error with newer (pre4.3) gcc 2008-02-14 20:58:04 -08:00
frv xtime_lock vs update_process_times 2008-02-13 13:29:25 -08:00
h8300 ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
ia64 [IA64] Fix build for sim_defconfig 2008-02-11 13:23:46 -08:00
m32r ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
m68k ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
m68knommu m68knommu: fix profile timer 2008-02-14 20:58:05 -08:00
mips Introduce path_put() 2008-02-14 21:13:33 -08:00
mn10300 mn10300: add platform MTD support for the ASB2303 board 2008-02-08 09:22:30 -08:00
parisc Introduce path_put() 2008-02-14 21:13:33 -08:00
powerpc Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-02-14 21:22:33 -08:00
ppc ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
s390 [S390] dynamic page tables. 2008-02-09 18:24:41 +01:00
sh sh: Fix multiple UTLB hit on UP SH-4. 2008-02-14 14:45:08 +09:00
sparc xtime_lock vs update_process_times 2008-02-13 13:29:25 -08:00
sparc64 Introduce path_put() 2008-02-14 21:13:33 -08:00
um Embed a struct path into struct nameidata instead of nd->{dentry,mnt} 2008-02-14 21:13:33 -08:00
v850 ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
x86 x86: reenable support for system without on node0 2008-02-18 20:54:14 +01:00
xtensa ide: introduce HAVE_IDE 2008-02-09 10:46:40 +01:00
.gitignore arch: Ignore arch/i386 and arch/x86_64 2008-01-19 21:29:39 -08:00
Kconfig Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig 2008-02-03 08:58:08 +01:00