Date: Wed, 21 Jul 2010 00:57:20 +0200 From: Markus Gebert <markus.gebert@hostpoint.ch> To: freebsd-stable <freebsd-stable@freebsd.org> 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?) Message-ID: <CA5D6921-D796-4920-9E94-E69AC982BEF8@hostpoint.ch> In-Reply-To: <alpine.BSF.2.00.1007200406140.27685@pragry.qngnvk.ybpny> References: <6B57591F-9FA2-45EB-825F-1DB025C0635D@hostpoint.ch> <201007091603.31843.jhb@freebsd.org> <08562D52-02AA-46CF-BFCD-00D0A3C4DC34@hostpoint.ch> <FFB367B2-232D-460D-82B8-C3F03F1B53BE@hostpoint.ch> <9DCFE2F6-D7CB-49CB-8EBC-06C1E5EBB727@hostpoint.ch> <F744F475-3D2B-4BC6-856A-A5D302AA8681@hostpoint.ch> <alpine.BSF.2.00.1007200406140.27685@pragry.qngnvk.ybpny>
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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=
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