linux-kernel - Re: Fail to early boot with v2.6.27-rc2 to at least v2.6.29-rc2 due to dc1e35c

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Message-ID: <4977BFFE.3040305@zytor.com>
Date:	Wed, 21 Jan 2009 16:38:22 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Avuton Olrich <avuton@...il.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Fail to early boot with v2.6.27-rc2 to at least v2.6.29-rc2 due
 to 	dc1e35c

Avuton Olrich wrote:
> Hello,
> 
> My computer fails to make it past 'Unpacking kernel' with anything
> later than dc1e35, to at least v2.6.29-rc2 due to dc1e35c, at least so
> git bisect told me. While writing this bug I discovered I was using
> gcc-4.1.1 when I thought I was using gcc-4.3.2; I upgraded, recompiled
> 2.6.28.1 and same results so I assume the same results would come from
> me doing the 4 hour bisect again.
> 

Hi Avuton,

Could you apply these two patches and verify that they work, even with 
the BIOS CPUID level limit enabled?

	-hpa

View attachment "0001-x86-add-MSR_IA32_MISC_ENABLE-bits-to-asm-msr-index.patch" of type "text/x-patch" (2439 bytes)

View attachment "0002-x86-unmask-CPUID-levels-on-Intel-CPUs.patch" of type "text/x-patch" (1326 bytes)