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SubjectRe: APIC error on CPUx
Andi Kleen wrote:

>On Monday 22 May 2006 13:58, Vladimir Dvorak wrote:
>
>
>>Andi Kleen wrote:
>>
>>
>>
>>>Vladimir Dvorak <dvorakv@vdsoft.org> writes:
>>>
>>>
>>>
>>>
>>>>Linux requisities:
>>>>Debian 3.1
>>>>Linux mailserver 2.6.8-3-686-smp #1 SMP Thu Feb 9 07:05:39 UTC 2006 i686
>>>>
>>>>
>>>>
>>>>
>>>That's an ancient kernel.
>>>
>>>
>>>
>>>
>>Yes, I agree.
>>
>> ... but the latest in Debian/Sarge. :-)
>>
>>Do you, Andi, thing that upgrade to latest vanilla one ( from
>>kernel.org ) should solve this problem ?
>>
>>
>
>Probably not.
>
>
>
>>>
>>>
>>>
>>>
>>>>GNU/Linux
>>>>
>>>>Hardware:
>>>>Intel SR1200
>>>>
>>>>
>>>>
>>>>
>>>If it's an <=P3 class machine: most likely you have noise on the APIC bus.
>>>
>>>-Andi
>>>
>>>
>>>
>>>
>>>
>>Yes, you are right :
>>
>>cat /proc/cpuinfo
>>...
>>model name : Intel(R) Pentium(R) III CPU family 1133MHz
>>...
>>
>>
>>"Noise on APIC bus" means - " a lot of interrupts from devices" ?
>>
>>
>
>Usually a crappy/broken/misdesigned motherboard.
>
>-Andi
>
>
>
>
And, probably, the latest question related to this topic:

Can "noapic" or "nolapic" solve this ? Does it mean ( with these
parameters ) that devices will start to use 8259 interrupt controller
instead APIC ?

Is harmfull put "noapic" on "nolapic" to cmdline ?

Thank you.

Vladimir

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