Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752675AbXJWKYF (ORCPT ); Tue, 23 Oct 2007 06:24:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751684AbXJWKXz (ORCPT ); Tue, 23 Oct 2007 06:23:55 -0400 Received: from mail-gw3.sa.ew.hu ([212.108.200.82]:35135 "EHLO mail-gw3.sa.ew.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751605AbXJWKXz (ORCPT ); Tue, 23 Oct 2007 06:23:55 -0400 To: xemul@openvz.org CC: riel@redhat.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xemul@openvz.org, raven@themaw.net In-reply-to: <471DB710.1060603@openvz.org> (message from Pavel Emelyanov on Tue, 23 Oct 2007 12:55:44 +0400) Subject: Re: futex strangeness in 2.6.23-mm1/UML References: <20071022145321.195d929b@bree.surriel.com> <20071022172926.03ca122a@bree.surriel.com> <20071022200742.6f3acbb2@bree.surriel.com> <20071022171624.0c00f8da.akpm@linux-foundation.org> <471DB710.1060603@openvz.org> Message-Id: From: Miklos Szeredi Date: Tue, 23 Oct 2007 12:23:19 +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1118 Lines: 30 > >> I guess we can debug it in the old-fashioned ways. The first of which is > >> to palm the problem off on Pavel ;) > > I look at the 2.6.23-mm1 and see that there's one hunk lost. This > is the one Oleg re-sent some days ago (the mail thread subject was > 2.6.23-mm1 thread exit_group issue). Here it is (sent 13 oct 2007): > > --- kernel/fork.c~ 2007-10-13 15:41:35.000000000 +0400 > +++ kernel/fork.c 2007-10-13 15:41:41.000000000 +0400 > @@ -1443,6 +1443,9 @@ long do_fork(unsigned long clone_flags, > task_pid_nr_ns(p, current->nsproxy->pid_ns) : > task_pid_vnr(p); > > + if (clone_flags & CLONE_PARENT_SETTID) > + put_user(nr, parent_tidptr); > + > if (clone_flags & CLONE_VFORK) { > p->vfork_done = &vfork; > init_completion(&vfork); > > Please, try with this patch. Thanks. This patch does indeed seem to solve the problem. Miklos - 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/