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From: Markus Gebert <markus.gebert@hostpoint.ch>
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To: freebsd-stable <freebsd-stable@freebsd.org>
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Cc: jhell <jhell@DataIX.net>
Subject: Re: 8.1-RC2 MCE caused by some LAPIC/clock changes? (was: 8.1-RC2 -
	PCI fatal error or MCE triggered by USB/ehci on Sun X4100M2?)
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On 20.07.2010, at 10:15, jhell wrote:

>> Any ideas how to proceed?
>>=20
>=20
> Adding to this I remembered some specific commits that caught my =
attention when they happened. Specifically they were to mca.c (locate =
mca) on my machine provided the file paths and svn log provided the =
commit log.
>=20
> When you said April and I seen the log it rang a bell.

Thank you for the hint. We've already tried to reproduce with MCA =
disabled, and didn't succeed. The thing is, without altering the bios =
default settings, the OS doesn't even get an MCE before the system =
reboots itself showing those "hypertransport sync flood" and "pci =
express fatal error" stuff during POST. So I guess it's safe to say, =
that the problem happens before MCA can kick in.


Markus=