Re: APIC error

[Rene Rebe]

HI,

On: Wed, 14 May 2003 14:55:37 +0200,
    [e-mail] wrote:

>  > Those errors only seem to happen during high disk-io (SCSI or IDE).
>  > What specific meaning do those errors have? Are they dangerous?
> 
> They are defined in Intel's IA32 manual set, volume 3,
> "System Programming Guide", downloadable from developer.intel.com.
> 
> These errors mean that APIC bus messages are lost or have checksum errors.
> You don't say which kernel you're using or which chipset, but chances are
> your mobo's APIC bus is noisy.
> 
>  > Each CPU survives hours in memtest86 ... And with maxcpus=1 it also
>  > does not seem to happen ... The BIOS is latest.
> 
> You can try booting with "noapic", that should let you keep using SMP
> while avoiding your possibly buggy APIC bus.

Thanks for the anwer I googled for this before the mail but only found
much noise ... I'll triy noapic (I thought this would disable SMP,
too), but I already had to notice that with maxcpus=1 I also get some
few APIC errors.

Is there drawback in using noapic in SMP mode?

Sincerely,
  René Rebe

--  
René Rebe - Europe/Germany/Berlin
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