From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752777AbYDDXs5 (ORCPT ); Fri, 4 Apr 2008 19:48:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751339AbYDDXsq (ORCPT ); Fri, 4 Apr 2008 19:48:46 -0400 Received: from smtp-outbound-1.vmware.com ([65.113.40.141]:49128 "EHLO smtp-outbound-1.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751242AbYDDXsp (ORCPT ); Fri, 4 Apr 2008 19:48:45 -0400 Subject: Fix "buggy BIOS check" when CPUs are hot removed From: Alok Kataria To: len.brown@intel.com, rui.zhang@intel.com Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Arai , Zachary Amsden Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: VMware, Inc. Date: Fri, 04 Apr 2008 16:48:44 -0700 Message-Id: <1207352924.6294.29.camel@promb-2n-dhcp158.eng.vmware.com> Mime-Version: 1.0 X-Mailer: Evolution 2.8.0 (2.8.0-40.el5) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes a BUG in ACPI hotplugging. processor_device_array[pr->id] needs to be set to NULL when removing a CPU. Else the "buggy BIOS check" in acpi_processor_start mistakenly fires when a CPU is removed from the system and then later re-added. Signed-off-by: Alok N Kataria Signed-off-by: Dan Arai --- drivers/acpi/processor_core.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 61450f4..0f95f26 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -828,6 +828,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type) } processors[pr->id] = NULL; + processor_device_array[pr->id] = NULL; kfree(pr); -- 1.5.4