From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755388AbZEDRfy (ORCPT ); Mon, 4 May 2009 13:35:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758591AbZEDRfF (ORCPT ); Mon, 4 May 2009 13:35:05 -0400 Received: from mx1.redhat.com ([66.187.233.31]:39993 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758595AbZEDRfD (ORCPT ); Mon, 4 May 2009 13:35:03 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Oleg Nesterov X-Fcc: ~/Mail/linus Cc: David Howells , Eric Paris , James Morris , Stephen Smalley , linux-kernel@vger.kernel.org Subject: Re: Q: selinux_bprm_committed_creds() && signals/do_wait In-Reply-To: Oleg Nesterov's message of Sunday, 3 May 2009 22:21:00 +0200 <20090503202100.GC18889@redhat.com> References: <20090428223025.GA11997@redhat.com> <20090501000222.8BACEFC3BF@magilla.sf.frob.com> <20090503202100.GC18889@redhat.com> X-Windows: ignorance is our most important resource. Message-Id: <20090504173422.45B9FFC32F@magilla.sf.frob.com> Date: Mon, 4 May 2009 10:34:22 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On 04/30, Roland McGrath wrote: > > > > This is related to the issue of racing stop signals lost by de_thread(). > > That is still on our back-burner list to think about more deeply one day. > > Hmm. did you mean "lost by selinux_bprm_committed_creds()" ? No, that is the separate issue we are dealing with now. > Or do we really have some problems with SIGSTOP && de_thread() ? Yes, this is an old subject (you've forgotten! ;-) and not really apropos to this thread. Let's discuss it separately (and like I said, not a top priority right now). (The problem is with another thread having just dequeued a stop signal when exec comes along.) Thanks, Roland