linux-kernel - Re: regression - 2.6.36 -> 2.6.37 - kvm

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Date:	Fri, 25 Feb 2011 11:48:23 +0100
From:	Nikola Ciprich <extmaillist@...uxbox.cz>
To:	Avi Kivity <avi@...hat.com>
Cc:	Nikola Ciprich <nikola.ciprich@...uxbox.cz>,
	KVM list <kvm@...r.kernel.org>,
	Linux kernel list <linux-kernel@...r.kernel.org>,
	zamsden@...hat.com
Subject: Re: regression - 2.6.36 -> 2.6.37 - kvm - 32bit SMP guests don't
	boot

(CC: Zachary)

Hello,
Zachary, in case You haven't noticed the thread, we're trying
to find out the reason why 32bit SMP guests stopped working
in 2.6.37. 
bisect shows this as the culprit:

e48672fa25e879f7ae21785c7efd187738139593 is first bad commit
commit e48672fa25e879f7ae21785c7efd187738139593
Author: Zachary Amsden <zamsden@...hat.com>
Date:   Thu Aug 19 22:07:23 2010 -1000

    KVM: x86: Unify TSC logic
    
    Move the TSC control logic from the vendor backends into x86.c
    by adding adjust_tsc_offset to x86 ops.  Now all TSC decisions
    can be done in one place.
    
    Signed-off-by: Zachary Amsden <zamsden@...hat.com>
    Signed-off-by: Marcelo Tosatti <mtosatti@...hat.com>

Unfortunately I couldn't try 2.6.37 with just this one reverted, certainly
other patches rely on it, but hopefully I've not screwed something while bisecting...

so what now?
n.

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