Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758478Ab1F3HIi (ORCPT ); Thu, 30 Jun 2011 03:08:38 -0400 Received: from mail-yx0-f174.google.com ([209.85.213.174]:47842 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753730Ab1F3HId (ORCPT ); Thu, 30 Jun 2011 03:08:33 -0400 MIME-Version: 1.0 In-Reply-To: <20110629064635.GB678@in.ibm.com> References: <1308911347.531.56.camel@gandalf.stny.rr.com> <4E074671.7060100@hitachi.com> <20110627100104.GA24705@in.ibm.com> <20110629064635.GB678@in.ibm.com> Date: Thu, 30 Jun 2011 15:08:32 +0800 Message-ID: Subject: Re: [BUG?]3.0-rc4+ftrace+kprobe: set kprobe at instruction 'stwu' lead to system crash/freeze From: Yong Zhang To: ananth@in.ibm.com Cc: Masami Hiramatsu , Steven Rostedt , Jim Keniston , linuxppc-dev@lists.ozlabs.org, linux-kernel , Benjamin Herrenschmidt , paulus@samba.org, galak@kernel.crashing.org, yrl.pp-manager.tt@hitachi.com Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 953 Lines: 34 On Wed, Jun 29, 2011 at 2:46 PM, Ananth N Mavinakayanahalli wrote: > > Certain functions are off limits for probing -- look for __kprobe Yup. > annotations in the kernel. Some such functions are arch specific, but > show_interrupts() would definitely not be one of them. It works fine on > my (64bit) test box. > > At this time, I think your best bet is to work with the eldk folks to > narrow down the problem. I'll give a try :) > Given the current set of data, I am inclined to > think it could be an eldk bug, not a kernel one. Maybe, but the fact is if I don't use kprobe, things works very well. I'll be back if there is any update :) Thanks, Yong -- Only stand for myself -- 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/