From: Christoph Lameter <cl@linux-foundation.org>
To: Giangiacomo Mariotti <gg.mariotti@gmail.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
Randy Dunlap <rdunlap@xenotime.net>,
Bill Davidsen <davidsen@tmr.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
x86 maintainers <x86@kernel.org>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: Possible bug in 2.6.34 slub
Date: Mon, 7 Jun 2010 17:35:27 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1006071730460.12520@router.home> (raw)
In-Reply-To: <AANLkTimXxhVCu50GweoC7iF9tFEoSrWAbqQEXRroGnBk@mail.gmail.com>
On Fri, 4 Jun 2010, Giangiacomo Mariotti wrote:
> [ 0.000000] found SMP MP-table at [ffff8800000f5ed0] f5ed0
SMP table is important.
> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x01] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x03] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled)
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x05] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x06] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x07] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x08] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x09] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0a] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0b] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0c] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0d] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0e] dfl dfl lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x0f] dfl dfl lint[0x1])
> [ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
> [ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] ACPI: IRQ0 used by override.
> [ 0.000000] ACPI: IRQ2 used by override.
> [ 0.000000] ACPI: IRQ9 used by override.
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
> [ 0.000000] SMP: Allowing 16 CPUs, 8 hotplug CPUs
ok so 24 cpus. 8 hotplug which should not work.
> dff00000:14100000)
> [ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512
> nr_cpu_ids:16 nr_node_ids:1
And it only has 16 now.
> [ 0.000000] SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0,
> CPUs=16, Nodes=1
And slub displays nr_cpu_ids again.
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prev parent reply other threads:[~2010-06-07 22:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AANLkTimEFy6VM3InWlqhVooQjKGSD3yBxlgeRbQC2r1L@mail.gmail.com>
[not found] ` <20100531165528.35a323fb.rdunlap@xenotime.net>
[not found] ` <4C047CF9.9000804@tmr.com>
[not found] ` <AANLkTilLq-hn59CBcLnOsnT37ZizQR6MrZX6btKPhfpb@mail.gmail.com>
2010-06-01 19:39 ` Randy Dunlap
2010-06-01 19:48 ` Christoph Lameter
2010-06-01 21:11 ` Giangiacomo Mariotti
2010-06-01 21:27 ` Christoph Lameter
2010-06-03 6:51 ` Pekka Enberg
2010-06-03 13:34 ` Christoph Lameter
2010-06-04 18:39 ` Giangiacomo Mariotti
2010-06-07 22:35 ` Christoph Lameter [this message]
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