From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755538AbbITXcN (ORCPT ); Sun, 20 Sep 2015 19:32:13 -0400 Received: from mail.kernel.org ([198.145.29.136]:40023 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755445AbbITXcM (ORCPT ); Sun, 20 Sep 2015 19:32:12 -0400 From: Andy Lutomirski To: x86@kernel.org Cc: Sasha Levin , linux-kernel@vger.kernel.org, Andy Lutomirski Subject: [PATCH 0/2] x86: NMI vs paravirt fixes Date: Sun, 20 Sep 2015 16:32:03 -0700 Message-Id: X-Mailer: git-send-email 2.4.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These are for x86/urgent. This fixes at least one problem that Sasha can trigger using some crazy configuration + Trinity. I can't reproduce the full file of nastiness that he's seeing, but these patches both look legit to me, they fix what look like real bugs, and they seem to help Sasha's tests. Patch 1 is ugly. Feel free to tell me to shove the asm into the entry asm files, although that will involve duplicating it for 32-bit and 64-bit kernels. Andy Lutomirski (2): x86/paravirt: Replace the paravirt nop with a bona fide empty function x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code arch/x86/entry/entry_64.S | 16 +++++++++++++++- arch/x86/kernel/paravirt.c | 16 ++++++++++++---- 2 files changed, 27 insertions(+), 5 deletions(-) -- 2.4.3