From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Warren Subject: server locks up at boot Date: Thu, 16 Jul 2009 13:44:00 -0700 Message-ID: <4A5F9110.4050208@atmos.washington.edu> Reply-To: warren-qmPYOCrcNLLyFCzt5hm0YvZ8FUJU4vz8@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------060202060407000307040603" To: linux-nfs@vger.kernel.org Return-path: Received: from mail-pz0-f197.google.com ([209.85.222.197]:62209 "EHLO mail-pz0-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933322AbZGPUoD (ORCPT ); Thu, 16 Jul 2009 16:44:03 -0400 Received: by pzk35 with SMTP id 35so247988pzk.33 for ; Thu, 16 Jul 2009 13:44:02 -0700 (PDT) Sender: linux-nfs-owner@vger.kernel.org List-ID: This is a multi-part message in MIME format. --------------060202060407000307040603 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit We have been having a problem for a while now with kernels ranging from 2.6.26 through 30. When a boots and starts the nfs server, it reads the /var/lib/nfs/v4recovery directory. If this directory is empty everything is fine. If it is not, all nfs related processes go into D wait and never return. Any other attempt to read the directory results in that process getting stuck in D wait as well. This happens on a variety of systems, all running Debian Lenny (happened with etch also) with kernels ranging from 2.6.26 - 2.6.31-rc2 serving disks via nfs4. if you boot single user and clear out the directory, everything is fine. Also, there is never any problem logged anywhere. So, my questions are: What is this directory really used for? It doesn't seem to need it to reestablish connections Anyone have any idea what is going on or suggestions for finding out? --------------060202060407000307040603 Content-Type: text/x-vcard; charset=utf-8; name="warren.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="warren.vcf" begin:vcard fn:David Warren n:Warren;David org:Atmospheric Sciences adr:Dept of Atmospheric Sciences, Box 351640;;University of Washington;Seattle;WA;98195-1640;USA email;internet:warren-qmPYOCrcNLLyFCzt5hm0YvZ8FUJU4vz8@public.gmane.org title:Software Engineer tel;work:206 543-0945 url:http://www.atmos.washington.edu version:2.1 end:vcard --------------060202060407000307040603--