From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965042AbcHDQIF (ORCPT ); Thu, 4 Aug 2016 12:08:05 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:36679 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758804AbcHDQID (ORCPT ); Thu, 4 Aug 2016 12:08:03 -0400 X-Greylist: delayed 366 seconds by postgrey-1.27 at vger.kernel.org; Thu, 04 Aug 2016 12:08:03 EDT Message-Id: <1470326515.4029967.686078721.338EDF9E@webmail.messagingengine.com> X-Sasl-Enc: /3zqXn9dcdRpzuWn3nC+q0nSLELpkrMc2k5xea+uJAIW 1470326515 From: lists@ssl-mail.com To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain X-Mailer: MessagingEngine.com Webmail Interface - ajax-b9085e99 Subject: [BUG] kernel 4.7 + Xen on UEFI boot crash. patch ID'd & tested, just need to verify & get it into upstream Date: Thu, 04 Aug 2016 09:01:55 -0700 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm running kernel 4.7/stable. It's installed from Opensuse packages atm. Using the current kernel causes a crash when booting Xen 4.7 on UEFI. Referenced in this now ridiculously-long thread https://lists.xenproject.org/archives/html/xen-devel/2016-07/msg02758.html In hunting down the problem, this specific code was asked about @ 'xen-devel' ML, @ https://lists.xenproject.org/archives/html/xen-devel/2016-07/msg02928.html While I see that you're running linux-4.7 could you please double-check that it has the following: commit 55f1ea15216a5a14c96738bd5284100a00ffa9dc Author: Vitaly Kuznetsov Date: Tue May 31 11:23:43 2016 +0100 efi: Fix for_each_efi_memory_desc_in_map() for empty memmaps A patch to the patch was proposed @ 'xen-devel' ML, https://lists.xen.org/archives/html/xen-devel/2016-08/msg00399.html It seems to fix the problem. Boot to Xen with kernel 4.7 no longer crashes. But then THAT patched patch was questioned @ 'opensuse-kernel' ML https://lists.xenproject.org/archives/html/xen-devel/2016-08/msg00747.html I'd just like to get to a correct fix & get it into upstream kernel, since that is what I'm told we need to wait for to get packages from the distro that have the patch & work. Since it seems it IS a kernel problem, I was hoping someone here could help shortcircuit this back & forth between projects and get the fix into kernel code. Thanks.