linux-kernel - Re: Bug on 2.6.26 - x86 VIA Nehemiah CentaurHauls processor cannot boot

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Message-ID: <48851AC2.8030007@zytor.com>
Date:	Mon, 21 Jul 2008 19:24:50 -0400
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Luis R. Rodriguez" <mcgrof@...il.com>
CC:	linux kernel <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...nel.org>,
	Ivan Seskar <Seskar@...lab.rutgers.edu>,
	jfm3 <jfm3@...lab.rutgers.edu>, Sujith <m.sujith@...il.com>
Subject: Re: Bug on 2.6.26 - x86 VIA Nehemiah CentaurHauls processor cannot
 boot

Luis R. Rodriguez wrote:
> On Mon, Jul 21, 2008 at 6:23 AM, H. Peter Anvin <hpa@...or.com> wrote:
>> Luis R. Rodriguez wrote:
>>> This bug seems to be present since 2.6.22 [1], so hope we can get this
>>> fixed ASAP. Let me know if you have patch suggestions I can test.
>>>
>>> This crashes very early, I had to use earlyprintk to get it.
>>>
> 
> I've put extra spaces between the culprit.
> 
> c0387ac2:       0f 1f 40 00             nopl   0x0(%eax)
> 

Sure enough, our old friend.

You have in your configuration:

CONFIG_M686=y
# CONFIG_X86_GENERIC is not set

... so this is fully expected; CONFIG_M686 without CONFIG_X86_GENERIC is 
not compatible with such processors.

Not a bug.

	-hpa

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