linux-kernel - Re: [stable] Boot failure with 2.6.27.46 on Xeon E5620 (Westmere EP)

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Message-ID: <20100526132357.GA26728@youquan-linux.bj.intel.com>
Date:	Wed, 26 May 2010 09:23:57 -0400
From:	Youquan Song <youquan.song@...ux.intel.com>
To:	S.Çağlar Onur <caglar@...Princeton.EDU>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	Greg KH <greg@...ah.com>,
	"stable@...nel.org" <stable@...nel.org>,
	"hpa@...or.com" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Song, Youquan" <youquan.song@...el.com>
Subject: Re: [stable] Boot failure with 2.6.27.46 on Xeon E5620 (Westmere EP)

> > I can't think of any known issues in 2.6.27 that can lead to this kind
> > of boot failure on WSM-EP. Caglar, It will be nice if you can do git
> > bisect between working and non-working kernels.
> 
> Sure, I'll try to boot those with plain 2.6.27 to see but please note that it's going to be little time consuming. For each one I have to create a custom boot image for them to download and test (a.k.a. don't expect to hear from me soon :))

Hi Caglar,

What's the microcode version? Get by "dmesg | grep microcode" if you
success boot other version of kernel.
Can you try to disable C-state(C6) in BIOS before your boot 2.6.27?

Thanks
-Youquan
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