From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762018AbZCNAoS (ORCPT ); Fri, 13 Mar 2009 20:44:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753738AbZCNATq (ORCPT ); Fri, 13 Mar 2009 20:19:46 -0400 Received: from kroah.org ([198.145.64.141]:34947 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753845AbZCNATf (ORCPT ); Fri, 13 Mar 2009 20:19:35 -0400 X-Mailbox-Line: From gregkh@mini.kroah.org Fri Mar 13 17:07:50 2009 Message-Id: <20090314000750.294401297@mini.kroah.org> User-Agent: quilt/0.48-1 Date: Fri, 13 Mar 2009 17:06:22 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , Willy Tarreau , Rodrigo Rubira Branco , Jake Edge , Eugene Teo , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Jeremy Fitzhardinge , Mark McLoughlin , Xen-devel , Ingo Molnar Subject: [patch 74/96] xen: disable interrupts early, as start_kernel expects References: <20090314000508.803142980@mini.kroah.org> Content-Disposition: inline; filename=xen-disable-interrupts-early-as-start_kernel-expects.patch In-Reply-To: <20090314001449.GA4485@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Jeremy Fitzhardinge commit 55d8085671863fe4ee6a17b7814bd38180a44e1d upstream. This avoids a lockdep warning from: if (DEBUG_LOCKS_WARN_ON(unlikely(!early_boot_irqs_enabled))) return; in trace_hardirqs_on_caller(); Signed-off-by: Jeremy Fitzhardinge Cc: Mark McLoughlin Cc: Xen-devel Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- arch/x86/xen/enlighten.c | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1707,6 +1707,9 @@ asmlinkage void __init xen_start_kernel( possible map and a non-dummy shared_info. */ per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0]; + local_irq_disable(); + early_boot_irqs_off(); + xen_raw_console_write("mapping kernel into physical memory\n"); pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);