From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752876AbbE0OSV (ORCPT ); Wed, 27 May 2015 10:18:21 -0400 Received: from terminus.zytor.com ([198.137.202.10]:36025 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752029AbbE0OSP (ORCPT ); Wed, 27 May 2015 10:18:15 -0400 Date: Wed, 27 May 2015 07:17:20 -0700 From: tip-bot for Borislav Petkov Message-ID: Cc: tglx@linutronix.de, jpoimboe@redhat.com, peterz@infradead.org, brgerst@gmail.com, mmarek@suse.cz, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, luto@kernel.org, bp@alien8.de, akpm@linux-foundation.org, luto@amacapital.net, hpa@zytor.com, bp@suse.de, mingo@kernel.org, dvlasenk@redhat.com, torvalds@linux-foundation.org Reply-To: bp@suse.de, bp@alien8.de, luto@kernel.org, a.p.zijlstra@chello.nl, hpa@zytor.com, luto@amacapital.net, akpm@linux-foundation.org, torvalds@linux-foundation.org, mingo@kernel.org, dvlasenk@redhat.com, brgerst@gmail.com, peterz@infradead.org, jpoimboe@redhat.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, mmarek@suse.cz In-Reply-To: <1432628901-18044-17-git-send-email-bp@alien8.de> References: <1432628901-18044-17-git-send-email-bp@alien8.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/debug] x86/Documentation: Remove STACKFAULT_STACK bulletpoint Git-Commit-ID: d724a9a52b0026ac6a05440c079c9a618acfd8cf X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: d724a9a52b0026ac6a05440c079c9a618acfd8cf Gitweb: http://git.kernel.org/tip/d724a9a52b0026ac6a05440c079c9a618acfd8cf Author: Borislav Petkov AuthorDate: Tue, 26 May 2015 10:28:19 +0200 Committer: Ingo Molnar CommitDate: Wed, 27 May 2015 14:39:46 +0200 x86/Documentation: Remove STACKFAULT_STACK bulletpoint Update the documentation after 6f442be2fb22 ("x86_64, traps: Stop using IST for #SS"). Signed-off-by: Borislav Petkov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Michal Marek Cc: Peter Zijlstra Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/1432628901-18044-17-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar --- Documentation/x86/kernel-stacks | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/Documentation/x86/kernel-stacks b/Documentation/x86/kernel-stacks index e3c8a49..c3c935b 100644 --- a/Documentation/x86/kernel-stacks +++ b/Documentation/x86/kernel-stacks @@ -1,3 +1,6 @@ +Kernel stacks on x86-64 bit +--------------------------- + Most of the text from Keith Owens, hacked by AK x86_64 page size (PAGE_SIZE) is 4K. @@ -56,13 +59,6 @@ If that assumption is ever broken then the stacks will become corrupt. The currently assigned IST stacks are :- -* STACKFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). - - Used for interrupt 12 - Stack Fault Exception (#SS). - - This allows the CPU to recover from invalid stack segments. Rarely - happens. - * DOUBLEFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). Used for interrupt 8 - Double Fault Exception (#DF).