From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934511AbaKMWb0 (ORCPT ); Thu, 13 Nov 2014 17:31:26 -0500 Received: from mail-pa0-f51.google.com ([209.85.220.51]:39650 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934154AbaKMWbZ (ORCPT ); Thu, 13 Nov 2014 17:31:25 -0500 From: Andy Lutomirski To: Borislav Petkov , x86@kernel.org Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Oleg Nesterov , Tony Luck , Andi Kleen , Andy Lutomirski Subject: [PATCH v2 0/2] Handle IST interrupts from userspace on the normal stack Date: Thu, 13 Nov 2014 14:31:19 -0800 Message-Id: X-Mailer: git-send-email 1.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We currently run IST interrupt handlers on the IST stack. Changing it may simplify a few things. See patch 2 for details. Patch 1 is a fix for a not-quite-bug in uprobes that Oleg noticed that would be exposed by patch 2. Andy Lutomirski (2): x86, entry: Switch stacks on a paranoid entry from userspace uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME Documentation/x86/entry_64.txt | 18 +++++--- Documentation/x86/x86_64/kernel-stacks | 8 ++-- arch/x86/include/asm/thread_info.h | 2 +- arch/x86/kernel/entry_64.S | 82 +++++++++++++++++----------------- arch/x86/kernel/traps.c | 23 +++------- kernel/events/uprobes.c | 1 - 6 files changed, 65 insertions(+), 69 deletions(-) -- 1.9.3