Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932847AbdHYNlA (ORCPT ); Fri, 25 Aug 2017 09:41:00 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:38215 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755890AbdHYNkz (ORCPT ); Fri, 25 Aug 2017 09:40:55 -0400 Subject: Re: kvm splat in mmu_spte_clear_track_bits To: Adam Borowski , Wanpeng Li Cc: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , kvm , "linux-kernel@vger.kernel.org" References: <20170820231302.s732zclznrqxwr46@angband.pl> <20170821191203.jospdwqpnixlotx3@angband.pl> <20170821195833.GA696@flask> <20170821223228.edc6jrm7bpybtqlj@angband.pl> <1c270e76-05be-6f5f-29c6-9cb31f37f71d@redhat.com> <20170825131419.r5lzm6oluauu65nx@angband.pl> From: Paolo Bonzini Message-ID: <0a85df4b-ca0a-7e70-51dc-90bd1c460c85@redhat.com> Date: Fri, 25 Aug 2017 15:40:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <20170825131419.r5lzm6oluauu65nx@angband.pl> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 669 Lines: 22 On 25/08/2017 15:14, Adam Borowski wrote: >>> I would also try commit 1372324b328cd5dabaef5e345e37ad48c63df2a9 to >>> identify whether it was caused by a KVM change in 4.13 or something >>> else. > I've ran different guests for a couple of hours, no explosions. Thus it > looks like updating Cornelia's email address isn't the cause. > > Too bad, there's 15k commits between 1372324b and 7f680d7ec315. So: - 4.12 works - 1372324b328cd5dabaef5e345e37ad48c63df2a9 works - 4.13-rc6 fails The next ones to test are going to be c136b84393d4e340e1b53fc7f737dd5827b19ee5 and 4.13-rc1. This can be a starting point for bisection or pointing the finger at someone else.