From patchwork Fri Jan 14 21:09:35 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rafael Wysocki X-Patchwork-Id: 480491 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p0ELAsfL011772 for ; Fri, 14 Jan 2011 21:10:54 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752738Ab1ANVKL (ORCPT ); Fri, 14 Jan 2011 16:10:11 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:37501 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752393Ab1ANVKI (ORCPT ); Fri, 14 Jan 2011 16:10:08 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by ogre.sisk.pl (Postfix) with ESMTP id CB4EA19AC0F; Fri, 14 Jan 2011 21:56:38 +0100 (CET) Received: from ogre.sisk.pl ([127.0.0.1]) by localhost (ogre.sisk.pl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 25081-09; Fri, 14 Jan 2011 21:56:17 +0100 (CET) Received: from ferrari.rjw.lan (220-bem-13.acn.waw.pl [82.210.184.220]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ogre.sisk.pl (Postfix) with ESMTP id 5E46D195406; Fri, 14 Jan 2011 21:56:17 +0100 (CET) From: "Rafael J. Wysocki" To: Sergey Senozhatsky Subject: Re: BUG: spinlock bad magic on CPU#0 Date: Fri, 14 Jan 2011 22:09:35 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.37+; KDE/4.4.4; x86_64; ; ) Cc: Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org References: <20110114140803.GA4003@swordfish> In-Reply-To: <20110114140803.GA4003@swordfish> MIME-Version: 1.0 Message-Id: <201101142209.35892.rjw@sisk.pl> X-Virus-Scanned: amavisd-new at ogre.sisk.pl using MkS_Vir for Linux Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 14 Jan 2011 21:10:57 +0000 (UTC) Index: linux-2.6/drivers/acpi/acpica/acglobal.h =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/acglobal.h +++ linux-2.6/drivers/acpi/acpica/acglobal.h @@ -228,8 +228,10 @@ ACPI_EXTERN u8 acpi_gbl_global_lock_pres */ ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */ ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ +ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */ #define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock #define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock +#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock /***************************************************************************** * Index: linux-2.6/drivers/acpi/acpica/evmisc.c =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/evmisc.c +++ linux-2.6/drivers/acpi/acpica/evmisc.c @@ -293,8 +293,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_no * ******************************************************************************/ static u8 acpi_ev_global_lock_pending; -static spinlock_t _acpi_ev_global_lock_pending_lock; -#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock static u32 acpi_ev_global_lock_handler(void *context) { Index: linux-2.6/drivers/acpi/acpica/utmutex.c =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/utmutex.c +++ linux-2.6/drivers/acpi/acpica/utmutex.c @@ -85,6 +85,7 @@ acpi_status acpi_ut_mutex_initialize(voi spin_lock_init(acpi_gbl_gpe_lock); spin_lock_init(acpi_gbl_hardware_lock); + spin_lock_init(acpi_ev_global_lock_pending_lock); /* Mutex for _OSI support */ status = acpi_os_create_mutex(&acpi_gbl_osi_mutex);