From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758871AbYENRFv (ORCPT ); Wed, 14 May 2008 13:05:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752216AbYENRFn (ORCPT ); Wed, 14 May 2008 13:05:43 -0400 Received: from mailout01.t-online.de ([194.25.134.80]:34845 "EHLO mailout01.t-online.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751649AbYENRFm (ORCPT ); Wed, 14 May 2008 13:05:42 -0400 Message-ID: <482B1BD2.8040400@t-online.de> Date: Wed, 14 May 2008 19:05:22 +0200 From: Harald Dunkel User-Agent: Thunderbird 2.0.0.14 (X11/20080503) MIME-Version: 1.0 To: Vegard Nossum CC: linux-kernel@vger.kernel.org Subject: Re: 2.6.25.3: su gets stuck for root References: <4829326A.6060808@t-online.de> <19f34abd0805122347x4d9c5d03m16679d724189790e@mail.gmail.com> <4829D345.7020909@t-online.de> <19f34abd0805140034j75d97ecbw5a03c200645768cb@mail.gmail.com> In-Reply-To: <19f34abd0805140034j75d97ecbw5a03c200645768cb@mail.gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ID: G0pCLBZVrhuaVQiy7n2rC-vizZlvf-XbFEfWSmURArq95BGJFEkRJ7fsmsf+80SwbV X-TOI-MSGID: 08623df0-a0b6-4b2b-8179-b13f5098d7f1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Vegard Nossum wrote: > > Ah, tough luck. What if you attach an strace to the already stuck > process? Like strace -p pid. It's a long shot, but worth a try, I > suppose. > As suggested I attached strace to the blocking stty. I got a continuous flow of : : ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo ...}) = ? ERESTARTSYS (To be restarted) --- SIGTTOU (Stopped (tty output)) @ 0 (0) --- --- SIGTTOU (Stopped (tty output)) @ 0 (0) --- : : I also moved back to an old version of coreutils from about 4 months ago. Same result. Regards Harri