Re: regression - 2.6.36 -> 2.6.37 - kvm - 32bit SMP guests don'tboot

From: Nikola Ciprich
Date: Fri Feb 25 2011 - 05:49:44 EST


(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@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>

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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