From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753383Ab1ARCOX (ORCPT ); Mon, 17 Jan 2011 21:14:23 -0500 Received: from mx1.redhat.com ([209.132.183.28]:26867 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752799Ab1ARCOW (ORCPT ); Mon, 17 Jan 2011 21:14:22 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Tejun Heo X-Fcc: ~/Mail/linus Cc: oleg@redhat.com, jan.kratochvil@redhat.com, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org Subject: Re: [PATCHSET RFC] ptrace,signal: clean transition between STOPPED and TRACED In-Reply-To: Tejun Heo's message of Friday, 24 December 2010 15:00:50 +0100 <1293199257-11255-1-git-send-email-tj@kernel.org> References: <1293199257-11255-1-git-send-email-tj@kernel.org> X-Zippy-Says: ..I just walked into th' HOUSE OF REPRESENTATIVES with fourteen WET DOLPHINS and an out-of-date MARRIAGE MANUAL... Message-Id: <20110118021417.D347A1807B7@magilla.sf.frob.com> Date: Mon, 17 Jan 2011 18:14:17 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Oh, and for any kind of ptrace changes, please always run the whole ptrace-tests suite before and after. That is by no means an exhaustive test that you haven't introduced new problems. But if you introduce regressions in that suite, it is quite like that you are causing problems for existing ptrace users like gdb (even if some tests were racy before, if the real-world practical results change, it could be a problem). http://sourceware.org/systemtap/wiki/utrace/tests has the pointers. Thanks, Roland