Date: Tue, 30 May 2006 02:10:38 -0700 From: "David O'Brien" <obrien@freebsd.org> To: Kevin Oberman <oberman@es.net> Cc: Yar Tikhiy <yar@comp.chem.msu.su>, njl@freebsd.org, freebsd-current@freebsd.org Subject: Re: Freeze due to performance_cx_lowest=LOW Message-ID: <20060530091038.GE33161@dragon.NUXI.org> In-Reply-To: <20060528221154.7351845043@ptavv.es.net> References: <20060528142039.GA80613@comp.chem.msu.su> <20060528221154.7351845043@ptavv.es.net>
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On Sun, May 28, 2006 at 03:11:54PM -0700, Kevin Oberman wrote: > This problem has been discussed over on ACPI. It's a problem with the > local APIC timer which does not run in C3 or lower. Nate is looking at a > solution for the problem. > > See his message on acpi@ on Sun, 07 May 2006 15:28:29 -0700. > > The fixes are to either not use C3 (or C4 if it's available) or to > disable APIC. ... > If the system is UP, there is no really no need for APIC. AMD64 requires an APIC. And I do get these lockups on my AMD64 laptop. So disabling the APIC isn't an option in this case. -- -- David (obrien@FreeBSD.org) Q: Because it reverses the logical flow of conversation. A: Why is top-posting (putting a reply at the top of the message) frowned upon?
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