From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:42566 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751057AbeBIRoZ (ORCPT ); Fri, 9 Feb 2018 12:44:25 -0500 Date: Fri, 9 Feb 2018 18:44:23 +0100 From: Greg KH To: Paolo Bonzini Cc: stable@vger.kernel.org, nikola.ciprich@linuxbox.cz, Haozhong Zhang Subject: Re: [PATCH] KVM MMU: check pending exception before injecting APF Message-ID: <20180209174423.GB12761@kroah.com> References: <1518195642-14761-1-git-send-email-pbonzini@redhat.com> <20180209171729.GA20345@kroah.com> <577e399b-7ca8-3df0-e473-cbac9dbe122d@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <577e399b-7ca8-3df0-e473-cbac9dbe122d@redhat.com> Sender: stable-owner@vger.kernel.org List-ID: On Fri, Feb 09, 2018 at 06:21:13PM +0100, Paolo Bonzini wrote: > On 09/02/2018 18:17, Greg KH wrote: > > On Fri, Feb 09, 2018 at 06:00:42PM +0100, Paolo Bonzini wrote: > >> From: Haozhong Zhang > >> > >> [ upstream commit 2a266f23550be997d783f27e704b9b40c4010292 Mon Sep 17 00:00:00 2001 ] > > > > Odd date :) > > Oops... git's fake mbox "From" line. Yeah, I guessed, odd it showed up here... > >> For example, when two APF's for page ready happen after one exit and > >> the first one becomes pending, the second one will result in #DF. > >> Instead, just handle the second page fault synchronously. > >> > >> Reported-by: Ross Zwisler > >> Message-ID: > >> Reported-by: Alec Blayne > >> Signed-off-by: Haozhong Zhang > >> Fixes: 664f8e26b00c7673a8303b0d40853a0c24ca93e1 > > > > So this is only needed for 4.14.y? > > Yes. 4.13 and 4.15 both work. Wonderful, I'll queue this up after this round of kernels are released in a few days. thanks, greg k-h