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Message-ID: <86802c440905121613h799b2c54x9b8734c0f01fafb1@mail.gmail.com> Date: Tue, 12 May 2009 16:13:46 -0700 From: Yinghai Lu <yhlu.kernel@...il.com> To: Jack Steiner <steiner@....com> Cc: David Rientjes <rientjes@...gle.com>, "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org>, Andi Kleen <andi@...stfloor.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 3/3] x86: fix node_possible_map logic -v2 On Tue, May 12, 2009 at 2:58 PM, Jack Steiner <steiner@....com> wrote: >> >> x2apic related? > > No. > > > >> >> can you disable x2apic in kernel? > > Yes - We have a BIOS option to allow us to boot either in legacy apic mode OR > in x2apic mode. > > Both behave the same... > > > <6>Initializing cgroup subsys cpuset > <6>Initializing cgroup subsys cpu > <5>Linux version 2.6.30-rc5-next-20090512-medusa (steiner@...atraz.americas.sgi.com) (gcc version 4.2.4) #7 SMP Tue May 12 16:54:27 CDT 2009 > <6>Command line: root=/dev/hda2 init=/bin/bash console=ttyS0,38400n8 fprom lpj=10000 nohpet loglevel=8 iommu=off dma32_size=4096 > <6>KERNEL supported cpus: > <6> Intel GenuineIntel > <6> AMD AuthenticAMD > <6> Centaur CentaurHauls > <6>BIOS-provided physical RAM map: > <6> BIOS-e820: 0000000000000000 - 0000000000006000 (usable) > <6> BIOS-e820: 0000000000006000 - 0000000000200000 (reserved) > <6> BIOS-e820: 0000000000200000 - 0000000010000000 (usable) > <6> BIOS-e820: 0000000080000000 - 0000000090000000 (reserved) > <6> BIOS-e820: 00000000f0000000 - 00000000fc000000 (reserved) > <6> BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved) > <6> BIOS-e820: 00000000fff60000 - 00000000fff6c000 (reserved) > <6> BIOS-e820: 00000fe000000000 - 00000fe018000000 (reserved) > <6>EFI v1.00 by SGI > <6> ACPI 2.0=0xe0200 UVsystab=0xe08c0 > <6>EFI: mem00: type=7, attr=0x8, range=[0x0000000000000000-0x0000000000006000) (0MB) > <6>EFI: mem01: type=5, attr=0x8000000000001000, range=[0x0000000000006000-0x00000000000b0000) (0MB) > <6>EFI: mem02: type=6, attr=0x8000000000000008, range=[0x00000000000b0000-0x0000000000200000) (1MB) > <6>EFI: mem03: type=7, attr=0x8, range=[0x0000000000200000-0x0000000010000000) (254MB) > <6>EFI: mem04: type=6, attr=0x8000000000000001, range=[0x0000000080000000-0x0000000090000000) (256MB) > <6>EFI: mem05: type=6, attr=0x8000000000000001, range=[0x00000000f0000000-0x00000000fc000000) (192MB) > <6>EFI: mem06: type=6, attr=0x8000000000000001, range=[0x00000000fed1c000-0x00000000fed20000) (0MB) > <6>EFI: mem07: type=6, attr=0x8000000000000001, range=[0x00000000fff60000-0x00000000fff6c000) (0MB) > <6>EFI: mem08: type=11, attr=0x8000000000000001, range=[0x00000fe000000000-0x00000fe018000000) (384MB) > <6>DMI not present or invalid. > <6>last_pfn = 0x10000 max_arch_pfn = 0x100000000 > <7>MTRR default type: write-back > <7>MTRR fixed ranges enabled: > <7> 00000-FFFFF write-back > <7>MTRR variable ranges enabled: > <7> 0 base 0 F0000000 mask FFF F0000000 uncachable > <7> 1 base E0 00000000 mask FF0 00000000 uncachable > <7> 2 base F0 00000000 mask FF0 00000000 uncachable > <7> 3 base F00 00000000 mask FF0000000000 uncachable > <7> 4 disabled > <7> 5 disabled > <7> 6 disabled > <7> 7 disabled > <6>x86 PAT enabled: cpu 0, old 0x606060606060606, new 0x7010600070106 > <6>init_memory_mapping: 0000000000000000-0000000010000000 > <7> 0000000000 - 0010000000 page 2M > <7>kernel direct mapping tables up to 10000000 @ 93a000-93c000 > <4>ACPI: RSDP 00000000000e0200 00024 (v02 ) > <4>ACPI: XSDT 00000000000e0240 00054 (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: APIC 00000000000e02e0 00074 (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: SRAT 00000000000e0380 00078 (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: SLIT 00000000000e05e0 00030 (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: MCFG 00000000000e0640 0004C (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: FACP 00000000000e06a0 000F4 (v03 SGI UVL 00030001 FPRM 00000001) > <4>ACPI: DSDT 00000000000e02a0 00030 (v01 SGI UVL 00010001 FPRM 00000001) > <4>ACPI: FACS 00000000000e07a0 00040 > <4>ACPI: DMAR 00000000000e0860 0004C (v01 SGI UVL 00010001 FPRM 00000001) > <7>ACPI: Local APIC address 0xfee00000 > <6>SRAT: PXM 0 -> APIC 0 -> Node 0 > <6>SRAT: PXM 1 -> APIC 128 -> Node 1 > <6>SRAT: Node 1 PXM 1 0-fff6c000 > <7>NUMA: Using 63 for the hash shift. > <6>Bootmem setup node 1 0000000000000000-0000000010000000 > <6> NODE_DATA [0000000000939a80 - 000000000096da7f] > <6> bootmap [000000000096e000 - 000000000096ffff] pages 2 > <6>(7 early reservations) ==> bootmem [0000000000 - 0010000000] > <6> #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] > <6> #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] > <6> #2 [0000200000 - 0000939a5c] TEXT DATA BSS ==> [0000200000 - 0000939a5c] > <6> #3 [000009f000 - 00000e0900] BIOS reserved ==> [000009f000 - 00000e0900] > <6> #4 [00000e0a68 - 0000100000] BIOS reserved ==> [00000e0a68 - 0000100000] > <6> #5 [00000e0900 - 00000e0a68] EFI memmap ==> [00000e0900 - 00000e0a68] > <6> #6 [0000001000 - 0000001030] ACPI SLIT ==> [0000001000 - 0000001030] > <7> [ffffe20000000000-ffffe200003fffff] PMD -> [ffff880001200000-ffff8800015fffff] on node 1 > <4>Zone PFN ranges: > <4> DMA 0x00000000 -> 0x00001000 > <4> DMA32 0x00001000 -> 0x00100000 > <4> Normal 0x00100000 -> 0x00100000 > <4>Movable zone start PFN for each node > <4>early_node_map[2] active PFN ranges > <4> 1: 0x00000000 -> 0x00000006 > <4> 1: 0x00000200 -> 0x00010000 > <7>On node 1 totalpages: 65030 > <7> DMA zone: 56 pages used for memmap > <7> DMA zone: 1948 pages reserved > <7> DMA zone: 1586 pages, LIFO batch:0 > <7> DMA32 zone: 840 pages used for memmap > <7> DMA32 zone: 60600 pages, LIFO batch:15 > <6>ACPI: PM-Timer IO Port: 0x1008 > <7>ACPI: Local APIC address 0xfee00000 > <6>ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) > <6>ACPI: LAPIC (acpi_id[0x01] lapic_id[0x80] enabled) > <6>ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) > <6>ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) > <6>ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0]) > <6>IOAPIC[0]: apic_id 8, version 0, address 0xfec00000, GSI 0-23 > <6>ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24]) > <6>IOAPIC[1]: apic_id 9, version 0, address 0xfec80000, GSI 24-24 > <6>ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) > <6>ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) > <7>ACPI: IRQ0 used by override. > <7>ACPI: IRQ2 used by override. > <7>ACPI: IRQ9 used by override. > <6>Using ACPI (MADT) for SMP configuration information > <6>SMP: Allowing 2 CPUs, 0 hotplug CPUs > <6>init_cpu_to_node: > <6>cpu 0 -> apicid 0x0 -> node 1 > <6>cpu 1 -> apicid 0x80 -> node 1 > <7>nr_irqs_gsi: 25 > <6>PM: Registered nosave memory: 0000000000006000 - 0000000000200000 > <6>Allocating PCI resources starting at 18000000 (gap: 10000000:70000000) > <6>NR_CPUS:4096 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 How about change NR_CPUS to 128? will find one system that only have node1 has memory. 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