Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932438AbVKURt6 (ORCPT ); Mon, 21 Nov 2005 12:49:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932427AbVKURtf (ORCPT ); Mon, 21 Nov 2005 12:49:35 -0500 Received: from citi.umich.edu ([141.211.133.111]:53644 "EHLO citi.umich.edu") by vger.kernel.org with ESMTP id S932419AbVKURtW (ORCPT ); Mon, 21 Nov 2005 12:49:22 -0500 Message-ID: <438208A1.5020300@citi.umich.edu> Date: Mon, 21 Nov 2005 12:49:21 -0500 From: Chuck Lever Reply-To: cel@citi.umich.edu Organization: Network Appliance, Inc. User-Agent: Mozilla Thunderbird 1.0.7-1.4.1 (X11/20050929) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Kenny Simpson Cc: Andrew Morton , trond.myklebust@fys.uio.no, linux-kernel@vger.kernel.org Subject: Re: infinite loop? with mmap, nfs, pwrite, O_DIRECT References: <20051121171332.58073.qmail@web34115.mail.mud.yahoo.com> In-Reply-To: <20051121171332.58073.qmail@web34115.mail.mud.yahoo.com> Content-Type: multipart/mixed; boundary="------------050009030409000200000102" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1647 Lines: 50 This is a multi-part message in MIME format. --------------050009030409000200000102 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 7bit Kenny Simpson wrote: > I have a smaller test case (4 system calls, and a memset), that causes the test case to hang in an > unkillable state*, and makes the system load consume an entire CPU. > > *the process is killable if run under strace, but the system load does not drop when the strace is > killed. > > Pass this the name of a target file on an NFS mount. > > (tested to fail on 2.6.15-rc1). kenny- i'm assuming that because you copied trond, this is only reproducible on NFS. have you tried this test on other local and remote file system types? --------------050009030409000200000102 Content-Type: text/x-vcard; charset=utf-8; name="cel.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="cel.vcf" begin:vcard fn:Chuck Lever n:Lever;Charles org:Network Appliance, Incorporated;Linux NFS Client Development adr:535 West William Street, Suite 3100;;Center for Information Technology Integration;Ann Arbor;MI;48103-4943;USA email;internet:cel@citi.umich.edu title:Member of Technical Staff tel;work:+1 734 763 4415 tel;fax:+1 734 763 4434 tel;home:+1 734 668 1089 x-mozilla-html:FALSE url:http://www.monkey.org/~cel/ version:2.1 end:vcard --------------050009030409000200000102-- - 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/