From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nikola Ciprich Subject: Re: regression - 2.6.36 -> 2.6.37 - kvm - 32bit SMP guests don't boot Date: Fri, 25 Feb 2011 11:48:23 +0100 Message-ID: <20110225104823.GD29840@pcnci.linuxbox.cz> References: <20110223234258.GA29548@nik-comp.lan> <4D663044.3080000@redhat.com> <20110224104800.GA29840@pcnci.linuxbox.cz> <4D663886.6080803@redhat.com> <20110224112742.GB29840@pcnci.linuxbox.cz> <4D664E85.8070808@redhat.com> <20110224124151.GK25673@pcnci.linuxbox.cz> <4D665449.4050908@redhat.com> <20110224125702.GC29840@pcnci.linuxbox.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Nikola Ciprich , KVM list , Linux kernel list , zamsden@redhat.com To: Avi Kivity Return-path: Content-Disposition: inline In-Reply-To: <20110224125702.GC29840@pcnci.linuxbox.cz> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org (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 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 Signed-off-by: Marcelo Tosatti 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. -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28. rijna 168, 709 01 Ostrava tel.: +420 596 603 142 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@linuxbox.cz -------------------------------------