From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759341AbZBLRSn (ORCPT ); Thu, 12 Feb 2009 12:18:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756312AbZBLRSe (ORCPT ); Thu, 12 Feb 2009 12:18:34 -0500 Received: from mx2.redhat.com ([66.187.237.31]:44890 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755870AbZBLRSe (ORCPT ); Thu, 12 Feb 2009 12:18:34 -0500 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20090212143932.GA10101@us.ibm.com> References: <20090212143932.GA10101@us.ibm.com> <20090212202118.0A58.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20090210142443.629E.KOSAKI.MOTOHIRO@jp.fujitsu.com> <27421.1234436992@redhat.com> <27547.1234440246@redhat.com> To: "Serge E. Hallyn" Cc: dhowells@redhat.com, KOSAKI Motohiro , LKML , Lee Schermerhorn Subject: Re: [CRED bug?] 2.6.29-rc3 don't survive on stress workload Date: Thu, 12 Feb 2009 17:18:24 +0000 Message-ID: <12311.1234459104@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Serge E. Hallyn wrote: > 1. put_user_ns() was being called before the uid (which > was in the init_user_ns) was unhashed Ah yes... but only if CONFIG_USER_NS=y. Otherwise the unhash was being done before the release anyway. With this option set, the unhash was being deferred to a workqueue thread. Okay, that seems reasonable. David