diff options
| author | Yinghai Lu <Yinghai.Lu@Sun.COM> | 2008-02-17 02:02:21 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-02-18 20:54:14 +0100 |
| commit | b7ad149d62ffffaccb9f565dfe7e5bae739d6836 (patch) | |
| tree | 0ab8e7b88b7018ca1891a23df3cd3921bb830b99 /arch/x86/kernel | |
| parent | f34b439f34c49d7de858234bab5e2dd03cfaf3c1 (diff) | |
| download | linux-b7ad149d62ffffaccb9f565dfe7e5bae739d6836.tar.bz2 | |
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>
Diffstat (limited to 'arch/x86/kernel')
0 files changed, 0 insertions, 0 deletions