From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe Subject: Re: 3.10.X kernel/jump_label kvm Date: Mon, 03 Mar 2014 19:17:54 +0100 Message-ID: <5314C752.1070407@profihost.ag> References: <5310E7E8.1040508@profihost.ag> <5314AF7B.10903@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit To: Paolo Bonzini , kvm@vger.kernel.org Return-path: Received: from mail-ph.de-nserver.de ([85.158.179.214]:44959 "EHLO mail-ph.de-nserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753599AbaCCSR1 (ORCPT ); Mon, 3 Mar 2014 13:17:27 -0500 In-Reply-To: <5314AF7B.10903@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Am 03.03.2014 17:36, schrieb Paolo Bonzini: > Il 28/02/2014 20:47, Stefan Priebe ha scritto: >> Hello, >> >> i got this stack trace multiple times while using a vanilla 3.10.32 >> kernel and already sent it to the list in december but got no replies. > > Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346: Thanks - will try it. So this one should also go into 3.10.X Stefan > diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c > index 1673940cf9c3..775702f649ca 100644 > --- a/arch/x86/kvm/lapic.c > +++ b/arch/x86/kvm/lapic.c > @@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 > value) > vcpu->arch.apic_base = value; > > /* update jump label if enable bit changes */ > - if ((vcpu->arch.apic_base ^ value) & MSR_IA32_APICBASE_ENABLE) { > + if ((old_value ^ value) & MSR_IA32_APICBASE_ENABLE) { > if (value & MSR_IA32_APICBASE_ENABLE) > static_key_slow_dec_deferred(&apic_hw_disabled); > else > > Paolo