Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754393AbcC3SCf (ORCPT ); Wed, 30 Mar 2016 14:02:35 -0400 Received: from mail-yw0-f195.google.com ([209.85.161.195]:35321 "EHLO mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753184AbcC3SCd (ORCPT ); Wed, 30 Mar 2016 14:02:33 -0400 MIME-Version: 1.0 In-Reply-To: <1459266567.6393.669.camel@hpe.com> References: <1458769323-24491-1-git-send-email-toshi.kani@hpe.com> <20160329103442.GA12645@gmail.com> <1459261167.6393.668.camel@hpe.com> <56FA9563.60401@oracle.com> <1459266567.6393.669.camel@hpe.com> From: "Luis R. Rodriguez" Date: Wed, 30 Mar 2016 11:02:13 -0700 X-Google-Sender-Auth: 5cyokj-Be2Ux1WEMz_pz-jDJqXs Message-ID: Subject: Re: [Xen-devel] [PATCH v3 0/7] Enhance PAT init to fix Xorg crashes To: Toshi Kani , Fengguang Wu , lkp@ml01.01.org Cc: Boris Ostrovsky , Ingo Molnar , Juergen Gross , Olaf Hering , X86 ML , "linux-kernel@vger.kernel.org" , Paul Gortmaker , "H. Peter Anvin" , xen-devel , Thomas Gleixner , Borislav Petkov , elliott@hpe.com, Lars Kurth , Vitaly Kuznetsov , Olaf Hering , Robert Schweikert , "Hao, Xudong" , Michal Marek , Mike Latimer , Charles Arnold Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1780 Lines: 38 On Tue, Mar 29, 2016 at 8:49 AM, Toshi Kani wrote: > On Tue, 2016-03-29 at 10:46 -0400, Boris Ostrovsky wrote: >> On 03/29/2016 10:19 AM, Toshi Kani wrote: >> > On Tue, 2016-03-29 at 12:34 +0200, Ingo Molnar wrote: >> > >> > > > I'd appreciate if someone can test this patch-set on Xen to verify >> > > > that there is no change in "x86/PAT: Configuration [0-7] .." >> > > > message in dmesg. >> > > So I don't have a Xen setup, but hopefully such testing will happen >> > > once these changes show up in linux-next, tomorrow or so. >> > I will address if any issue is found in testing. >> >> I ran a subset of out nightly test. Nobody died. >> >> So this all looks good. (It actually may have also fixed another bug >> that was reported recently by Olaf, copied here) > > Cool! Thanks Boris! Hoping Boris or someone on the Xen front would test this prior to merging helps but it also slows us down, a while ago we discussed the possibility of getting Linux Xen guests automatically tested as part of 0-day, this way then when a developer (in this case Toshi) pushes to his own tree, he'd be able to just sit and wait for the results, without having to hope Boris or someone goes out and tests. Its a major undertaking to get Linux Xen guests boot strapped into 0-day, however such prospects were raised a while ago and it seems we may be able to get there. Just wanted to send a reminder about this possibility, and highlight this patch set as an ideal candidate where a proactive test could have helped as well. I proactively caught the original Xen issue, but git logs shows we are not doing so great in this area, so any help on the Xen side as well to help with 0-day integration would be appreciated. I'll follow up on another thread on that. Luis