From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762944AbXGUJ2U (ORCPT ); Sat, 21 Jul 2007 05:28:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760148AbXGUJ2K (ORCPT ); Sat, 21 Jul 2007 05:28:10 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:51950 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756444AbXGUJ2J (ORCPT ); Sat, 21 Jul 2007 05:28:09 -0400 Date: Sat, 21 Jul 2007 11:28:19 +0200 From: Pavel Machek To: Miklos Szeredi Cc: oleg@tv-sign.ru, rjw@sisk.pl, linux-kernel@vger.kernel.org Subject: Re: malicious filesystems (was Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM Message-ID: <20070721092819.GA1902@elf.ucw.cz> References: <20070714212102.GA214@tv-sign.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun 2007-07-15 15:06:59, Miklos Szeredi wrote: > > > SIGKILL won't work on a stopped task. Neither on a traced task. > > > > Why do you think so? It works in both cases (ptracer can use > > PT_TRACE_EXIT, but the task is killed anyway). > > Just from experience with tasks stuck in "T" state. After for example > an UML dies, some of the processes only react to SIGCONT, but not to > SIGKILL. > > I have no idea why this happens. Anyway that should be fixed, not used as excuse for fuse misbehaviour. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html