From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752644AbeDSNAT (ORCPT ); Thu, 19 Apr 2018 09:00:19 -0400 Received: from mx2.suse.de ([195.135.220.15]:57639 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751169AbeDSNAR (ORCPT ); Thu, 19 Apr 2018 09:00:17 -0400 Date: Thu, 19 Apr 2018 15:00:11 +0200 From: Borislav Petkov To: Dave Hansen Cc: Andy Lutomirski , Joerg Roedel , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra , LKML , Joerg Roedel , "Rafael J. Wysocki" Subject: Re: [PATCH] x86/ldt: Fix support_pte_mask filtering in map_ldt_struct() Message-ID: <20180419130011.GG3896@pd.tnic> References: <1523871837-8378-1-git-send-email-joro@8bytes.org> <07e2c23e-10b7-b03f-5706-3d4b910537ba@linux.intel.com> <20180418121403.GA3434@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180418121403.GA3434@pd.tnic> User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 18, 2018 at 02:18:57PM +0200, Borislav Petkov wrote: > Btw, even with Jörg's fix, > > fb43d6cb91ef ("x86/mm: Do not auto-massage page protections") Some updates. 1. current linus master with Joerg's fix triple-faults on the IVB laptop during resume from disk. 2. current linus master with Joerg's fix + those two: C Apr 17 Dave Hansen ( : 67) [PATCH 1/2] x86, pti: fix boot problems from Global-bit setting C Apr 17 Dave Hansen ( : 81) └─>[PATCH 2/2] x86, pti: fix boot warning from Global-bit setting triplefaults too. Bisection confirms again fb43d6cb91ef is the first bad: fb43d6cb91ef x86/mm: Do not auto-massage page protections <--- NOT OK 6baf4bec02db x86/espfix: Document use of _PAGE_GLOBAL <--- OK -- Regards/Gruss, Boris. SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --