Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756537AbYFKOEe (ORCPT ); Wed, 11 Jun 2008 10:04:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752885AbYFKOEY (ORCPT ); Wed, 11 Jun 2008 10:04:24 -0400 Received: from shadow.wildlava.net ([67.40.138.81]:49155 "EHLO shadow.wildlava.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752749AbYFKOEX (ORCPT ); Wed, 11 Jun 2008 10:04:23 -0400 Message-ID: <484FDB63.6050504@skyrush.com> Date: Wed, 11 Jun 2008 08:04:19 -0600 From: Joe Peterson User-Agent: Thunderbird 2.0.0.14 (X11/20080505) MIME-Version: 1.0 To: Alan Cox CC: Alan Cox , David Newall , Willy Tarreau , Harald Dunkel , linux-kernel@vger.kernel.org Subject: Re: 2.6.25.3: su gets stuck for root References: <48438126.3080308@t-online.de> <20080602053256.GF5609@1wt.eu> <20080602091016.571dda7c@core> <4843B6EE.8080104@davidnewall.com> <20080602102033.63e4cd18@core> <48441138.90503@skyrush.com> <20080602155133.GC933@devserv.devel.redhat.com> <4846A9F4.40003@skyrush.com> <20080604151649.GB12625@devserv.devel.redhat.com> <4846C85E.7080309@skyrush.com> <20080604171056.GB17875@devserv.devel.redhat.com> <4846FBF2.9010206@skyrush.com> In-Reply-To: <4846FBF2.9010206@skyrush.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1238 Lines: 31 Joe Peterson wrote: > Anyway, here is more info: > > tty_check_change: current->signal->tty = f7880800 > tty_check_change: tty = f7880800 > tty_check_change: tty->pgrp = f7b99e40 > tty->pgrp->count = 5 > tty->pgrp->level = 0 > tty->pgrp->numbers[0].nr = 6951 > tty_check_change: task_pgrp(current) = f7b99d40 > task_pgrp(current)->count = 1 > task_pgrp(current)->level = 0 > task_pgrp(current)->numbers[0].nr = 6952 > tty_check_change: kill_pgrp called; returning -ERESTARTSYS > set_termios: error return value (-512) from tty_check_change > foo 6951 0.0 0.1 2332 1096 tty1 S+ 14:18 0:00 su foo > foo 6952 0.0 0.1 2988 1464 tty1 S 14:18 0:00 bash > > > So, looks like the tty->pgrp's process is the "su" command itself, and > the task_pgrp(current)'s process is "bash" - the shell started by the su. If anyone has any tips for my further debugging of this, given the above, let me know. I'd like to help resolve this. Thanks! Joe -- 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/