Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758690AbYH3JTM (ORCPT ); Sat, 30 Aug 2008 05:19:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751356AbYH3JS5 (ORCPT ); Sat, 30 Aug 2008 05:18:57 -0400 Received: from main.gmane.org ([80.91.229.2]:47440 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750977AbYH3JS5 (ORCPT ); Sat, 30 Aug 2008 05:18:57 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Matthias Urlichs Subject: [Regression] sshd hangs on close Date: Sat, 30 Aug 2008 09:18:47 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: smurf.noris.de User-Agent: Pan/0.132 (Waxed in Black) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 674 Lines: 13 "top" sees multiple instances of: 6008 root 20 3184 D 0 0:00.06 flush_cpu sshd: root@pts/13 This is 2.6.27rc5, preemption and tickless turned on, on a 4-CPU machine. (OK, two hyperthreaded ones :-P) strace() shows that this happens on the last close of its /dev/ptmx file descriptor, which hangs. I'll do a bisect early next week unless somebody else identifies a likely suspect. -- Matthias Urlichs -- 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/