Messages in this thread | | | Date | Sun, 12 Mar 2006 14:05:00 +0100 (CET) | From | Krzysztof Oledzki <> | Subject | Re: More than 8 CPUs detected and CONFIG_X86_PC cannot handle it on 2.6.16-rc6 |
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On Sun, 12 Mar 2006, Andrew Morton wrote:
> Krzysztof Oledzki <olel@ans.pl> wrote: >> >> On Sat, 11 Mar 2006, Andrew Morton wrote: >> >> > Krzysztof Oledzki <olel@ans.pl> 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). >> > >> > Please send full dmesg output for the failing kernel, thanks. >> Attached. >> >> > Which is the most-recently-tested kernel which behaved correctly? >> 2.6.15.6 > > OK, thanks. I assume the machine's working OK?
Yes. So far no problems, only this warning.
> From my reading, you have CONFIG_HOTPLUG_CPU enabled and the machine has an > APIC. That is correct.
> I'd expect that lots of people would hit that warning but for some > reason they don't - possibly because most APICs don't have sufficiently > high version numbers? > > Anyway, various people cc'ed. I _think_ it's harmless, although the way in > which def_to_bigsmp propagates into the DMI and APIC code might be a > problem, depending upon config options. > > Certainly the warning is incorrect, but I'm not sure what is the best thing > to do about it?
OK. Thank you.
Best regards,
Krzysztof Olędzki
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