Messages in this thread | | | Date | Wed, 15 Mar 2006 05:50:39 -0500 | From | Chuck Ebbert <> | Subject | Re: More than 8 CPUs detected and CONFIG_X86_PC cannot handle it on 2.6.16-rc6 |
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In-Reply-To: <Pine.LNX.4.64.0603120256480.14567@bizon.gios.gov.pl>
On Sun, 12 Mar 2006 03:04:40 +0100, Krzysztof Oledzki wrote:
> After upgrading to 2.6.16-rc6 I noticed this strange message: > > More than 8 CPUs detected and CONFIG_X86_PC cannot handle it. > Use CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP. > > This is a Dell PowerEdge SC1425 with two P4 Xeons with HT enabled (so with > totoal of 4 logical CPUs).
In a later message, you wrote:
> ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) > Processor #0 15:4 APIC version 20 > ACPI: LAPIC (acpi_id[0x02] lapic_id[0x06] enabled) > Processor #6 15:4 APIC version 20 ^ > ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled) > Processor #1 15:4 APIC version 20 > ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] enabled) > Processor #7 15:4 APIC version 20 ^
What processor numbers did you get on 2.6.15.x? Does /proc/cpuinfo show all four CPUs? If you start four CPU-hungry processes, do all four show 100% utilization in top(1)?
-- Chuck "Penguins don't come from next door, they come from the Antarctic!"
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