From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luis Henriques Subject: Re: [BUG] kvm crashes in 2.6.28-rc6-00007-ged31348 Date: Thu, 4 Dec 2008 22:05:11 +0000 Message-ID: <20081204220511.GA3510@hades.domain.com> References: <4932F59D.2060002@redhat.com> <20081130203833.GA14903@hades> <4932FB47.6090300@redhat.com> <20081130210406.GA17952@hades> <493528D8.8010904@redhat.com> <20081202190914.GA12115@hades> <20081202194610.GA4864@hades> <1228249509.4886.11.camel@localhost.localdomain> <49359CDF.5060300@redhat.com> <4937F8F1.3070402@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Steven Rostedt , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Steven Rostedt , Ingo Molnar To: Avi Kivity Return-path: Content-Disposition: inline In-Reply-To: <4937F8F1.3070402@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On Thu, Dec 04, 2008 at 05:36:17PM +0200, Avi Kivity wrote: > Avi Kivity wrote: >> Steven Rostedt wrote: >>> The following must be available without recursion for the function >>> tracer to work: >>> >>> local_irq_save/restore >>> smp_processor_id >>> preempt_enable/disable_notrace >>> atomic_inc/dec >>> >> >> In arch/x86/kvm/svm.c, function svm_vcpu_run(), everything between the >> vmrun instruction and the call to load_host_msrs() is executed without >> a live pda, so no smp_processor_id(). Could easily be fixed by >> rearranging things. >> >> > > Luis, please try the attached patch. Sorry for taking so long testing the patch. However, I got exactly the same result as before, i.e., a crash. Regards, -- Luis Henriques