Re: no SMP

From: Borislav Petkov
Date: Wed Aug 01 2012 - 10:41:19 EST


On Wed, Aug 01, 2012 at 01:59:09PM +0200, reiner.funck wrote:
> Dear Sirs,
>
> I ask you for an advice. I get with all kernels (2.6, 3.1, ... 3.4) with all
> distributions (suse, ubuntu, ...) in the system messages
> ....
> CPU: Physical Processor ID:0
> Jul 17 11:52:47 linux-joum kernel: [ 0.009100] CPU: Processor Core ID: 0
> Jul 17 11:52:47 linux-joum kernel: [ 0.009101] mce: CPU supports 7 MCE
> banks
> Jul 17 11:52:47 linux-joum kernel: [ 0.009131] SMP alternatives
> switchingto UP code
> Jul 17 11:52:47 linux-joum kernel: [ 0.012309] Freeing SMP alternatives:
> 20k freed
> Jul 17 11:52:47 linux-joum kernel: [ 0.012347] weird, boot CPU (#16) not
> listed by the BIOS.
> Jul 17 11:52:47 linux-joum kernel: [ 0.012348] SMP motherboard not
> detected.
> Jul 17 11:52:47 linux-joum kernel: [ 0.113986] SMP disabled
> Jul 17 11:52:47 linux-joum kernel: [ 0.113987] Performance Events: AMD
> Family 15h PMU driver.
> Jul 17 11:52:47 linux-joum kernel: [ 0.113989] ... version:
> 0
> Jul 17 11:52:47 linux-joum kernel: [ 0.113989] ..
> .....
> I work with Asus Mainboard M5A99X EVO and AMD FX(tm) 8150 (eight core)
> processor. The Bios
> Version is the newest (1208, used with default options). The Results are equal
> with Kernel
> option acpi=off or on, maxcpus=8 or not..
> Systemmonitoring shows one CPU.
> Bios must have the missing information? (weird, boot CPU (#16) not listed by
> the BIOS).
> Asus replied to my question: we test no Linux systems (windows7 works with 8
> cores).
> Do you have an advice for me?

Hmm, fun. Can you boot any kernel on your system successfully? If so,
can you send full dmesg from it?

Also, is it a 32-bit or a 64-bit kernel?

Also, can you test booting with "numa=off"?

Thanks.

--
Regards/Gruss,
Boris.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/