From: Chuck Ebbert <76306.1226@compuserve.com>
To: Krzysztof Oledzki <olel@ans.pl>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>, Ashok Raj <ashok.raj@intel.com>
Subject: Re: More than 8 CPUs detected and CONFIG_X86_PC cannot handle it on 2.6.16-rc6
Date: Wed, 15 Mar 2006 05:50:39 -0500 [thread overview]
Message-ID: <200603150553_MC3-1-BAB1-7C5A@compuserve.com> (raw)
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!"
next reply other threads:[~2006-03-15 10:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-15 10:50 Chuck Ebbert [this message]
2006-03-15 15:44 ` Krzysztof Oledzki
-- strict thread matches above, loose matches on Subject: below --
2006-03-12 2:04 Krzysztof Oledzki
2006-03-12 5:03 ` Andrew Morton
2006-03-12 11:04 ` Krzysztof Oledzki
2006-03-12 11:25 ` Andrew Morton
2006-03-12 13:05 ` Krzysztof Oledzki
2006-03-12 15:35 ` Venkatesh Pallipadi
2006-03-12 21:13 ` Krzysztof Oledzki
2006-03-12 22:30 ` Andrew Morton
2006-03-13 19:36 ` Ashok Raj
2006-03-13 19:51 ` Andrew Morton
2006-03-13 20:05 ` Ashok Raj
2006-03-13 22:22 ` Andrew Morton
2006-03-13 23:04 ` Ashok Raj
2006-03-15 5:44 ` Nathan Lynch
2006-03-15 6:18 ` Shaohua Li
2006-03-15 7:31 ` Andrew Morton
2006-03-15 18:09 ` Ashok Raj
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