Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758192AbZCWPTQ (ORCPT ); Mon, 23 Mar 2009 11:19:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755939AbZCWPS7 (ORCPT ); Mon, 23 Mar 2009 11:18:59 -0400 Received: from mx2.redhat.com ([66.187.237.31]:35686 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753773AbZCWPS7 (ORCPT ); Mon, 23 Mar 2009 11:18:59 -0400 Date: Mon, 23 Mar 2009 16:14:00 +0100 From: Oleg Nesterov To: Alexey Dobriyan Cc: Ingo Molnar , Linus Torvalds , "Frank Ch. Eigler" , Andrew Morton , Roland McGrath , Steven Rostedt , utrace-devel@redhat.com, linux-kernel@vger.kernel.org, Peter Zijlstra , Thomas Gleixner Subject: Re: [PATCH 3/3] utrace-based ftrace "process" engine, v2 Message-ID: <20090323151400.GA3413@redhat.com> References: <20090321091235.GA29678@elte.hu> <20090321041954.72b99e69.akpm@linux-foundation.org> <20090321115141.GA3566@redhat.com> <20090321050422.d1d99eec.akpm@linux-foundation.org> <20090321154501.GA2707@elte.hu> <20090321143413.75ead1aa.akpm@linux-foundation.org> <20090321215145.GB5262@redhat.com> <20090322123749.GF19826@elte.hu> <20090323134813.GA18219@x200.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090323134813.GA18219@x200.localdomain> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 770 Lines: 22 On 03/23, Alexey Dobriyan wrote: > > Right now with ptrace(2) rewrite the following is easily triggerable: > > WARNING: at kernel/ptrace.c:515 ptrace_report_signal+0x2c1/0x2d0() Yes, ptrace-over-utrace needs more work. But your message looks as if utrace core is buggy, imho this is a bit unfair ;) As Roland said, ptrace-over-utrace is not ready yet. If you mean that utrace core should not be merged alone - this is another story. But personally I understand why Roland sends utrace core before changing ptrace. Oleg. -- 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/