From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH v2] kvm: fix waitqueue_active without memory barrier in virt/kvm/async_pf.c Date: Fri, 6 Nov 2015 17:30:04 +0100 Message-ID: <563CD58C.1080402@redhat.com> References: <17EC94B0A072C34B8DCF0D30AD16044A02874DB5@BPXM09GP.gisp.nec.co.jp> <20151106130246.GG12546@gandi.net> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Gleb Natapov , "kvm@vger.kernel.org" , Kosuke Tatsukawa To: William Dauchy Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58516 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751320AbbKFQaJ (ORCPT ); Fri, 6 Nov 2015 11:30:09 -0500 In-Reply-To: <20151106130246.GG12546@gandi.net> Sender: kvm-owner@vger.kernel.org List-ID: On 06/11/2015 14:02, William Dauchy wrote: > Hi Paolo, > > Looking at the history of this function, is it reasonable to say > it fixes the following commit? af585b9 KVM: Halt vcpu if page it > tries to access is swapped out > > Does it make it a good candidate for -stable? It's just a theoretical race, with no known reproducer, so it's explicitly "forbidden" by the -stable rules. Paolo