Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936665AbZDIU3i (ORCPT ); Thu, 9 Apr 2009 16:29:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762252AbZDIU33 (ORCPT ); Thu, 9 Apr 2009 16:29:29 -0400 Received: from gate.crashing.org ([63.228.1.57]:48202 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761949AbZDIU33 (ORCPT ); Thu, 9 Apr 2009 16:29:29 -0400 Cc: oleg@redhat.com, linux-kernel Mailing List , Andrew Morton Message-Id: <0D6A6388-C12F-4066-84B8-155381D14504@kernel.crashing.org> From: Kumar Gala To: Sukadev Bhattiprolu In-Reply-To: <20090409194912.GA30645@us.ibm.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible ptrace issue?) Date: Thu, 9 Apr 2009 15:28:31 -0500 References: <0CA2FBE3-C50C-4503-9134-6DA1C6965743@kernel.crashing.org> <0D4C1952-792C-4AFF-8969-1EF5386FDAB9@kernel.crashing.org> <20090409194912.GA30645@us.ibm.com> X-Mailer: Apple Mail (2.930.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1682 Lines: 57 On Apr 9, 2009, at 2:49 PM, Sukadev Bhattiprolu wrote: > Kumar Gala [galak@kernel.crashing.org] wrote: >> >> On Apr 9, 2009, at 10:43 AM, Kumar Gala wrote: >> >>> I'm seeing some weird behavior in 2.6.30-rc1 that didn't exist in >>> 2.6.29. >>> We have a slightly older LTP version (20080131) that we run on some >>> embedded PPC boards. If I run the syscall tests on 2.6.29 things >>> pass as > > Will try to repro on a normal machine, but can you attach the /proc/ > pid/status > (and possibly the stack) of the parent of the 'recv01' ? Name: recv01 State: Z (zombie) Tgid: 2449 Pid: 2449 PPid: 1 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 0 Groups: 0 1 2 3 4 6 10 Threads: 1 SigQ: 8/16384 SigPnd: 0000000000000000 ShdPnd: 0000000000004100 SigBlk: 0000000000000000 SigIgn: 0000000000000000 SigCgt: 0000000000000000 CapInh: 0000000000000000 CapPrm: fffffffffffffeff CapEff: fffffffffffffeff CapBnd: fffffffffffffeff voluntary_ctxt_switches: 6 nonvoluntary_ctxt_switches: 0 If you have suggestion on how to dump the stack I can provide that as well. > If the parent is 'init', is there anything special about the init on > your board > or on the simulator - like are you running the tests in a container ? Its an old init from fedora 3 or something like that. Its not running in any special way (not container, no hypervisor, etc.) - k -- 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/