8.1-RC2 MCE caused by some LAPIC/clock changes?

John Baldwin jhb at freebsd.org
Wed Jul 21 17:36:25 UTC 2010


On Wednesday, July 21, 2010 5:17:06 am Andriy Gapon wrote:
> on 21/07/2010 11:33 Andriy Gapon said the following:
> > Not sure how to interpret this properly.
> > One possibility is a hardware problem where interrupt message route 
between
> > ioapic2 and CPU to which lapic3 belongs is flaky.
> 
> Or, I/O path between that CPU and the PCI slot where the device resides.  Or 
the
> CPU. Or...
> I think that lapic2 and lapic3 reside in a different physical 
package/socket,
> given that you have 2x2 CPU/core configuration.
> 
> BTW, John, could there be any problem because of this:
> ioapic1: WARNING: intbase 48 != expected base 24
> ioapic2: WARNING: intbase 56 != expected base 55
> ioapic3: WARNING: intbase 24 != expected base 63

You can ignore this, this just means ACPI enumerated the I/O APICs out of 
order in the MADT.

-- 
John Baldwin


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