Commit e0fdace1 authored by David Miller's avatar David Miller Committed by Ingo Molnar
Browse files

debug_locks: set oops_in_progress if we will log messages. 



Otherwise lock debugging messages on runqueue locks can deadlock the
system due to the wakeups performed by printk().

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 419ca3f1

lib/debug_locks.c

+2 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
 *

 *  Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>

 */

#include <linux/kernel.h>

#include <linux/rwsem.h>

#include <linux/mutex.h>

#include <linux/module.h>
@@ -37,6 +38,7 @@ int debug_locks_off(void) 
{

	if (xchg(&debug_locks, 0)) {

		if (!debug_locks_silent) {

			oops_in_progress = 1;

			console_verbose();

			return 1;

		}