Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761558AbZFRGs6 (ORCPT ); Thu, 18 Jun 2009 02:48:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759704AbZFRGst (ORCPT ); Thu, 18 Jun 2009 02:48:49 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:49647 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757267AbZFRGss (ORCPT ); Thu, 18 Jun 2009 02:48:48 -0400 Message-ID: <4A39E34F.20707@jp.fujitsu.com> Date: Thu, 18 Jun 2009 15:48:47 +0900 From: Hidetoshi Seto User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org CC: Vivek Goyal , Haren Myneni , kexec@lists.infradead.org Subject: [PATCH 3/7] ia64, kexec: Unregister MCA handler before kexec References: <4A39E247.4030908@jp.fujitsu.com> In-Reply-To: <4A39E247.4030908@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1324 Lines: 36 We cannot handle machine check errors during kernel transition. To avoid entering MCA handler from early stage of new kernel, unregister the entry point from SAL before leave from current kernel. Then SAL will make all MCAs to warmboot safely. Signed-off-by: Hidetoshi Seto Cc: Vivek Goyal Cc: Haren Myneni Cc: kexec@lists.infradead.org --- arch/ia64/kernel/machine_kexec.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c index d35fc39..eb4f1cc 100644 --- a/arch/ia64/kernel/machine_kexec.c +++ b/arch/ia64/kernel/machine_kexec.c @@ -106,6 +106,9 @@ static void ia64_machine_kexec(struct unw_frame_info *info, void *arg) ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, 0, 0, 0, 0, 0, 0); } + /* Unregister mca handler - No more recovery on current kernel */ + ia64_sal_set_vectors(SAL_VECTOR_OS_MCA, 0, 0, 0, 0, 0, 0); + /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); -- 1.6.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/