From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756441AbZCRMZN (ORCPT ); Wed, 18 Mar 2009 08:25:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752421AbZCRMY6 (ORCPT ); Wed, 18 Mar 2009 08:24:58 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.144]:40576 "EHLO e4.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751163AbZCRMY6 (ORCPT ); Wed, 18 Mar 2009 08:24:58 -0400 Date: Wed, 18 Mar 2009 17:55:00 +0530 From: Ananth N Mavinakayanahalli To: Ingo Molnar Cc: Linus Torvalds , Andrew Morton , lkml , Masami Hiramatsu , Jim Keniston , bharata@linux.vnet.ibm.com Subject: Re: [PATCH] Kprobes: Fix locking imbalance in kretprobes Message-ID: <20090318122500.GC4129@in.ibm.com> Reply-To: ananth@in.ibm.com References: <20090318113621.GB4129@in.ibm.com> <20090318115158.GF32233@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090318115158.GF32233@elte.hu> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 18, 2009 at 12:51:58PM +0100, Ingo Molnar wrote: > > * Ananth N Mavinakayanahalli wrote: > > > Fix locking imbalance in kretprobes: > > > > ===================================== > > [ BUG: bad unlock balance detected! ] > > ------------------------------------- > > kthreadd/2 is trying to release lock (&rp->lock) at: > > [] pre_handler_kretprobe+0xea/0xf4 > > Applied it to tip:tracing/kprobes, thanks Ananth! > > The bug has been introduced in v2.6.27-rc1 so i've marked it for a > -stable backport for .27.x, 28.x and 29.x. Sure, thanks Ingo!