From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759719Ab0JVTSa (ORCPT ); Fri, 22 Oct 2010 15:18:30 -0400 Received: from kroah.org ([198.145.64.141]:34039 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759068Ab0JVS4N (ORCPT ); Fri, 22 Oct 2010 14:56:13 -0400 X-Mailbox-Line: From gregkh@clark.site Fri Oct 22 11:52:30 2010 Message-Id: <20101022185230.030613191@clark.site> User-Agent: quilt/0.48-11.2 Date: Fri, 22 Oct 2010 11:51:04 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Jeremy Fitzhardinge , Avi Kivity , Steven Rostedt Subject: [030/103] tracing/x86: Dont use mcount in kvmclock.c In-Reply-To: <20101022185455.GA9114@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.35-stable review patch. If anyone has any objections, please let us know. ------------------ From: Steven Rostedt commit 258af47479980d8238a04568b94a4e55aa1cb537 upstream. The guest can use the paravirt clock in kvmclock.c which is used by sched_clock(), which in turn is used by the tracing mechanism for timestamps, which leads to infinite recursion. Disable mcount/tracing for kvmclock.o. Cc: Jeremy Fitzhardinge Cc: Avi Kivity Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/Makefile | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -12,6 +12,7 @@ CFLAGS_REMOVE_tsc.o = -pg CFLAGS_REMOVE_rtc.o = -pg CFLAGS_REMOVE_paravirt-spinlocks.o = -pg CFLAGS_REMOVE_pvclock.o = -pg +CFLAGS_REMOVE_kvmclock.o = -pg CFLAGS_REMOVE_ftrace.o = -pg CFLAGS_REMOVE_early_printk.o = -pg endif