From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965065AbYEBPUV (ORCPT ); Fri, 2 May 2008 11:20:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759860AbYEBPT5 (ORCPT ); Fri, 2 May 2008 11:19:57 -0400 Received: from 2605ds1-ynoe.1.fullrate.dk ([90.184.12.24]:36132 "EHLO shrek.krogh.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754806AbYEBPT4 (ORCPT ); Fri, 2 May 2008 11:19:56 -0400 Message-ID: <481B3115.30705@krogh.cc> Date: Fri, 02 May 2008 17:19:49 +0200 From: Jesper Krogh User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org Subject: Re: Many open/close on same files yeilds "No such file or directory". References: <4819E316.7000607@krogh.cc> <20080501223938.921f7cd2.akpm@linux-foundation.org> <481ACEC4.2040205@krogh.cc> In-Reply-To: <481ACEC4.2040205@krogh.cc> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jesper Krogh wrote: >> I'd suspect that after 1e8 loops your CPU got too hot and started to >> misbehave. > > Hardware is an Sun Fire X4600 (8xdual-core AMD64 processors). The > problem seem to be tied to this filesystem. (I cannot havent been able > to reproduce it on the /-mounted disk of the same system. So if a cpu > problem.. then it shouldn't be tied to a specific filesystem? > > This is the only activity on the system .. so a load of 1 / 16cpus. I've tried to explore this suggestion (the best I could). There are 2 ext3 filesystems locally mounted. / and this one. Running 16 parallel runs of this program on a file on the /-mounted filesystem cannot reproduce the problem. If it was linked to hot hardware, I believe I should be able to reproduce it this way. The servers are in a 17 degress serverroom. It changes alot when.. it actually happens. The "earliest ones" has been from 200000 cycles. Ive tried to upgrade.. so the system is now running a 2.6.24-16-server (Ubuntu/Hardy) kernel. But execpt from differnet output in uname, everything else seems to be the same. All suggestions/ideas are welcome? The general feeling is that it wont change a thing to reformat the filesystem? Jesper -- Jesper