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Date: Mon, 22 Oct 2012 17:35:47 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: "Eric W. Biederman" <ebiederm@...ssion.com> CC: HATAYAMA Daisuke <d.hatayama@...fujitsu.com>, linux-kernel@...r.kernel.org, kexec@...ts.infradead.org, x86@...nel.org, mingo@...e.hu, tglx@...utronix.de, len.brown@...el.com, fenghua.yu@...el.com, vgoyal@...hat.com, grant.likely@...retlab.ca, rob.herring@...xeda.com Subject: Re: [PATCH v1 2/2] x86, apic: Disable BSP if boot cpu is AP On 10/22/2012 02:29 PM, Eric W. Biederman wrote: >> >> As I said, I thought Fenghua tried that but it didn't work, experimentally. > > Fair enough. You described the problem with clearing bit 8 in a weird > way. > > If the best we can muster are fuzzy memories it may be worth revisiting. > Perhaps it works on enough cpu models to be interesting. > It isn't fuzzy memories... this was done as late as 1-2 months ago. I just don't know the details. Fenghua, could you help fill us in? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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