Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751163AbaLZDVO (ORCPT ); Thu, 25 Dec 2014 22:21:14 -0500 Received: from mail-qg0-f45.google.com ([209.85.192.45]:42862 "EHLO mail-qg0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750746AbaLZDVN (ORCPT ); Thu, 25 Dec 2014 22:21:13 -0500 Message-ID: <549CD425.5020104@hurleysoftware.com> Date: Thu, 25 Dec 2014 22:21:09 -0500 From: Peter Hurley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Qu Wenruo , jgross@suse.com, Thomas Hellstrom CC: Linux kernel Subject: Re: [REGRESSION][x86] Commit f5b2831d65 cause boot failure in VMware ESXi 5.1 guest References: <549CC096.3080701@cn.fujitsu.com> In-Reply-To: <549CC096.3080701@cn.fujitsu.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ +to Thomas Hellstrom ] On 12/25/2014 08:57 PM, Qu Wenruo wrote: > Hi all, > > When testing v3.19-rc1 kernel(in fact, try to test), the kernel itself fail to boot on VMware ESXi 5.1 guest. Maybe this problem related to the other VMware PAT issue? > The boot failure is quite easy to describe, only one line is output: > "Probing EDD (edd=off to disable)...ok" > > No other output(including warning/bug_on/backtrace or whatever) and the guest just hangs. > It's OK on v3.18, so it's a regression. > > Bisect points to the following commit: > commit f5b2831d654167d77da8afbef4d2584897b12d0c > Author: Juergen Gross > Date: Mon Nov 3 14:02:02 2014 +0100 > > x86: Respect PAT bit when copying pte values between large and normal pages > > The PAT bit in the ptes is not moved to the correct position when > copying page protection attributes between entries of different sized > pages. Translate the ptes according to their page size. > > > I have also created the kernel BZ report: > https://bugzilla.kernel.org/show_bug.cgi?id=90321 > > Hopes this can be resolved in next rc. > > Thanks, > Qu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/