From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263773AbTEFOrO (ORCPT ); Tue, 6 May 2003 10:47:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263777AbTEFOrO (ORCPT ); Tue, 6 May 2003 10:47:14 -0400 Received: from franka.aracnet.com ([216.99.193.44]:62112 "EHLO franka.aracnet.com") by vger.kernel.org with ESMTP id S263773AbTEFOrN (ORCPT ); Tue, 6 May 2003 10:47:13 -0400 Date: Tue, 06 May 2003 07:59:11 -0700 From: "Martin J. Bligh" Reply-To: LKML To: linux-kernel Subject: [Bug 666] New: machine check handler can deadlock Message-ID: <12510000.1052233151@[10.10.2.4]> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id=666 Summary: machine check handler can deadlock Kernel Version: all 2.4, 2.5 Status: NEW Severity: normal Owner: mbligh@aracnet.com Submitter: ak@suse.de The machine check handler calls printk but does not honour cli/sti. When an MCE happens inside a critical section of printk it'll deadlock. (bug is in x86-64 too, probably other platforms)