Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754579AbZCEW4c (ORCPT ); Thu, 5 Mar 2009 17:56:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753603AbZCEW4X (ORCPT ); Thu, 5 Mar 2009 17:56:23 -0500 Received: from smtp-out5.blueyonder.co.uk ([195.188.213.8]:42802 "EHLO smtp-out5.blueyonder.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753307AbZCEW4W (ORCPT ); Thu, 5 Mar 2009 17:56:22 -0500 X-Greylist: delayed 4894 seconds by postgrey-1.27 at vger.kernel.org; Thu, 05 Mar 2009 17:56:22 EST Message-ID: <49B04565.2060708@blueyonder.co.uk> Date: Thu, 05 Mar 2009 21:34:29 +0000 From: Sid Boyce Reply-To: g3vbv@blueyonder.co.uk Organization: blueyonder.co.uk User-Agent: Thunderbird 2.0.0.19 (X11/20081227) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Strange problem with FUTEX_WAIT_PRIVATE 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: 2925 Lines: 64 I don't know if it's a kernel problem, I have already posted to openSUSE Factory list without any response. It's either an openSUSE problem or one encountered since about 2.6.29-rc4 I'd guess and through to 2.6.29-rc7-git1. If I execute certain applications as root I never get the GUI output, as user everything works as expected. Below is part of the strace output from "qjackctl". VirtualBox and others do the same. <<> stat("/etc/kde4/share/config/oxygenrc", {st_mode=S_IFREG|0644, st_size=55, ...}) = 0 stat("/etc/kde4/share/config/oxygenrc", {st_mode=S_IFREG|0644, st_size=55, ...}) = 0 fstat(8, {st_mode=S_IFREG|0644, st_size=55, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fba0d1a9000 read(8, "[Windeco]\nBlendTitlebarColors=false\nShowStripes=false\n\n", 4096) = 55 read(8, "", 4096) = 0 close(8) = 0 munmap(0x7fba0d1a9000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 8 connect(8, {sa_family=AF_FILE, path=@"/tmp/dbus-8XYkB058j7"}, 23) = 0 fcntl(8, F_GETFL) = 0x2 (flags O_RDWR) fcntl(8, F_SETFL, O_RDWR|O_NONBLOCK) = 0 fcntl(8, F_GETFD) = 0 fcntl(8, F_SETFD, FD_CLOEXEC) = 0 geteuid() = 0 rt_sigaction(SIGPIPE, {0x1, [PIPE], SA_RESTORER|SA_RESTART, 0x7fba0869d6e0}, {SIG_DFL, [], 0}, 8) = 0 poll([{fd=8, events=POLLOUT}], 1, 0) = 1 ([{fd=8, revents=POLLOUT}]) write(8, "\0", 1) = 1 write(8, "AUTH EXTERNAL 30\r\n", 18) = 18 poll([{fd=8, events=POLLIN}], 1, -1) = 1 ([{fd=8, revents=POLLIN}]) read(8, "OK 7c5d389345212834a5f2258649afe483\r\n", 2048) = 37 poll([{fd=8, events=POLLOUT}], 1, -1) = 1 ([{fd=8, revents=POLLOUT}]) write(8, "BEGIN\r\n", 7) = 7 poll([{fd=8, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=8, revents=POLLIN|POLLOUT|POLLHUP}]) read(8, "", 2048) = 0 close(8) = 0 sched_yield() = 0 sched_yield() = 0 sched_yield() = 0 sched_yield() = 0 <<< many lines of the same truncated>>> sched_yield() = 0 sched_yield() = 0 futex(0x7722ac, FUTEX_WAIT_PRIVATE, 1, NULL It never moves beyond that point and I have to CTRL-C back to the prompt. Regards Sid. -- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks -- 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/