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From: "H. Peter Anvin" <hpa@zytor.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: "Luis R. Rodriguez" <mcgrof@gmail.com>,
	linux kernel <linux-kernel@vger.kernel.org>,
	"H. Peter Anvin" <hpa@kernel.org>,
	Ivan Seskar <Seskar@winlab.rutgers.edu>,
	jfm3 <jfm3@winlab.rutgers.edu>, Sujith <m.sujith@gmail.com>
Subject: Re: Bug on 2.6.26 - x86 VIA Nehemiah CentaurHauls processor cannot boot
Date: Tue, 22 Jul 2008 14:21:26 -0400	[thread overview]
Message-ID: <48862526.7060704@zytor.com> (raw)
In-Reply-To: <488614A3.1060400@garzik.org>

Jeff Garzik wrote:
>>
>> Thanks for taking a  look at this. So well, it would be a
>> misconfiguration bug by the distribution then to try to support a
>> generic 686 kernel wihtout GENERIC then.
> 
> Well, it may be intentional -- some distros simply exclude support for 
> the lower-volume VIA processors, since that might imply building their 
> "generic 686 kernel" sans CMOV and some other instructions, and changing 
> the compiler's instruction scheduling to something less optimal for the 
> majority.  :/
> 

X86_GENERIC shouldn't disable CMOV?

We're only referring specifically to the family == 6 VIA processors here.

	-hpa


  reply	other threads:[~2008-07-22 18:22 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-21 13:14 Bug on 2.6.26 - x86 VIA Nehemiah CentaurHauls processor cannot boot Luis R. Rodriguez
2008-07-21 13:23 ` H. Peter Anvin
2008-07-21 14:01   ` Luis R. Rodriguez
2008-07-21 23:24     ` H. Peter Anvin
2008-07-22  4:47       ` Luis R. Rodriguez
2008-07-22 13:10         ` H. Peter Anvin
2008-07-22 17:10         ` Jeff Garzik
2008-07-22 18:21           ` H. Peter Anvin [this message]
2008-07-22 18:33             ` Jeff Garzik
2008-07-22 18:41               ` H. Peter Anvin
2008-07-22 23:28                 ` Jeff Garzik
2008-07-23  0:31                   ` H. Peter Anvin
2008-07-22 13:14       ` Ingo Molnar
2008-07-22 13:24         ` H. Peter Anvin
2008-07-22 13:46           ` Ingo Molnar
2008-07-22 13:54             ` H. Peter Anvin
2008-07-26 18:31           ` Andi Kleen
2008-07-26 18:35             ` H. Peter Anvin
2008-07-26 18:44               ` Andi Kleen

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