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

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Message-ID: <20080722131408.GA12418@elte.hu>
Date:	Tue, 22 Jul 2008 15:14:08 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Luis R. Rodriguez" <mcgrof@...il.com>,
	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

* H. Peter Anvin <hpa@...or.com> wrote:

> 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.

it would still be nice to get a nice printk and panic during bootup 
instead of some obscure crash, hm?

	Ingo
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