From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423351AbWKPKKK (ORCPT ); Thu, 16 Nov 2006 05:10:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423303AbWKPKKK (ORCPT ); Thu, 16 Nov 2006 05:10:10 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:63636 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S1423223AbWKPKKH (ORCPT ); Thu, 16 Nov 2006 05:10:07 -0500 Date: Thu, 16 Nov 2006 11:08:52 +0100 From: Ingo Molnar To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: [patch] lockdep: show held locks when showing a stackdump Message-ID: <20061116100852.GA5864@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i X-ELTE-SpamScore: -4.1 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-4.1 required=5.9 tests=ALL_TRUSTED,AWL,BAYES_20 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts -2.0 BAYES_20 BODY: Bayesian spam probability is 5 to 20% [score: 0.0952] 1.2 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Subject: [patch] lockdep: show held locks when showing a stackdump From: Ingo Molnar lockdep can be used to print held locks when printing a backtrace. This can be useful when debugging things like 'scheduling while atomic' asserts. Signed-off-by: Ingo Molnar --- arch/i386/kernel/traps.c | 1 + arch/x86_64/kernel/traps.c | 1 + 2 files changed, 2 insertions(+) Index: linux/arch/i386/kernel/traps.c =================================================================== --- linux.orig/arch/i386/kernel/traps.c +++ linux/arch/i386/kernel/traps.c @@ -318,6 +318,7 @@ static void show_stack_log_lvl(struct ta } printk("\n%sCall Trace:\n", log_lvl); show_trace_log_lvl(task, regs, esp, log_lvl); + debug_show_held_locks(task); } void show_stack(struct task_struct *task, unsigned long *esp) Index: linux/arch/x86_64/kernel/traps.c =================================================================== --- linux.orig/arch/x86_64/kernel/traps.c +++ linux/arch/x86_64/kernel/traps.c @@ -405,6 +405,7 @@ show_trace(struct task_struct *tsk, stru printk("\nCall Trace:\n"); dump_trace(tsk, regs, stack, &print_trace_ops, NULL); printk("\n"); + debug_show_held_locks(tsk); } static void