From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753936AbbGWQmS (ORCPT ); Thu, 23 Jul 2015 12:42:18 -0400 Received: from mail.kernel.org ([198.145.29.136]:52227 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753401AbbGWQmM (ORCPT ); Thu, 23 Jul 2015 12:42:12 -0400 Date: Thu, 23 Jul 2015 13:42:06 -0300 From: Arnaldo Carvalho de Melo To: Masami Hiramatsu Cc: Hemant Kumar , Peter Zijlstra , linux-kernel@vger.kernel.org, Adrian Hunter , Ingo Molnar , Jiri Olsa , Namhyung Kim , Borislav Petkov Subject: Re: Re: Re: [RFC PATCH perf/core v2 00/16] perf-probe --cache and SDT support Message-ID: <20150723164206.GB3154@kernel.org> References: <20150715091352.8915.87480.stgit@localhost.localdomain> <55A7215F.40803@linux.vnet.ibm.com> <55A874C6.5030202@hitachi.com> <55AFA4E2.4040801@linux.vnet.ibm.com> <55B0E872.8030206@hitachi.com> <20150723140127.GD3152@kernel.org> <55B11555.9060100@hitachi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55B11555.9060100@hitachi.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Fri, Jul 24, 2015 at 01:24:53AM +0900, Masami Hiramatsu escreveu: > On 2015/07/23 23:01, Arnaldo Carvalho de Melo wrote: > > This needs refining, i.e. I should just warn that albeit "probe:vfs_getname" is available, > > it can't be used, unless we open the doors wide. > > > > Sorry for the digression, but these permission issues will hit us with SDT as well, no? > > Yes, and we have another way to avoid this issue, by using setuid as systemtap does. Will react to the other parts later, but 'setuid'?, can we do better? That look like some big hammer :-/ - Arnaldo