Date: Wed, 11 Feb 2009 10:33:26 -0500 From: Matt Hempel <matt@biglist.com> To: gavin@FreeBSD.org Cc: freebsd-bugs@FreeBSD.org Subject: Re: kern/131571: Running with APIC enabled crashes a Supermicro server running 7.0/7.1 Message-ID: <4992EFC6.5060205@biglist.com> In-Reply-To: <200902111152.n1BBqnSc002745@freefall.freebsd.org> References: <200902111152.n1BBqnSc002745@freefall.freebsd.org>
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I received the following feedback from the freebsd-smp list: Look for a BIOS update. The last time I saw this, some weird interaction with SMM was interfering with the delivery of the INIT and/or STARTUP IPIs. A BIOS update that included newer microcode for the CPUs in question fixed the issue. For the boxes I was testing, if I disabled USB legacy compat (which would result in fewer SMM traps during boot), then the machines would fail to boot every time. With USB legacy compat enabled, they would fail occasionally. -- John Baldwin Updating the BIOS sounds like a good idea to me. That's going to take some time to accomplish. I'll update the PR when I get it done; anything else you can suggest in the meantime would be much appreciated. Thanks M
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