Hi David, There's no file in /var/crash. What am I supposed to do now? Please help. Thai Duong. <div>On 2/10/06, David Gutierrez <<a href="mailto:davegu1@hotmail.com">davegu1@hotmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Check your /var/crash directory and it should have created a core file for you to debug, Let me know if you need help with it. The line 550 will tell you what the problem is from the file which was reading at the time of the crash. try to write to oracle_u02. Kernel panic: GFS: Assertion failed on line 550 of file rgrp.c David From: Thai Duong <<a href="mailto:thaidn@gmail.com">thaidn@gmail.com</a>> Reply-To: linux clustering < <a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a>> To: linux clustering <<a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a>> Subject: [Linux-cluster] Kernel panic: GFS: Assertion failed on line 550 offile rgrp.c Date: Fri, 10 Feb 2006 00:17:22 +0700 MIME-Version: 1.0 Received: from <a href="http://hormel.redhat.com">hormel.redhat.com</a> ([<a href="http://209.132.177.30">209.132.177.30</a>]) by <a href="http://bay0-mc12-f1.bay0.hotmail.com"> bay0-mc12-f1.bay0.hotmail.com</a> with Microsoft SMTPSVC(6.0.3790.211); Thu, 9 Feb 2006 09:17:42 -0800 Received: from <a href="http://listman.util.phx.redhat.com">listman.util.phx.redhat.com</a> (<a href="http://listman.util.phx.redhat.com"> listman.util.phx.redhat.com</a> [<a href="http://10.8.4.110">10.8.4.110</a>])by <a href="http://hormel.redhat.com">hormel.redhat.com</a> (Postfix) with ESMTPid 1D0C372F78; Thu, 9 Feb 2006 12:17:42 -0500 (EST) Received: from <a href="http://int-mx1.corp.redhat.com">int-mx1.corp.redhat.com</a> (int-mx1.corp.redhat.com[<a href="http://172.16.52.254">172.16.52.254</a>])by <a href="http://listman.util.phx.redhat.com">listman.util.phx.redhat.com </a> (8.13.1/8.13.1) with ESMTP idk19HHeLE012080 for <<a href="mailto:linux-cluster@listman.util.phx.redhat.com">linux-cluster@listman.util.phx.redhat.com</a>>;Thu, 9 Feb 2006 12:17:40 -0500 Received: from <a href="http://mx3.redhat.com">mx3.redhat.com</a> (<a href="http://mx3.redhat.com">mx3.redhat.com</a> [<a href="http://172.16.48.32">172.16.48.32</a>])by <a href="http://int-mx1.corp.redhat.com">int-mx1.corp.redhat.com </a> (8.11.6/8.11.6) with ESMTP id k19HHd106088for <<a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a>>; Thu, 9 Feb 2006 12:17:39 -0500 Received: from <a href="http://xproxy.gmail.com">xproxy.gmail.com </a> (<a href="http://xproxy.gmail.com">xproxy.gmail.com</a> [<a href="http://66.249.82.205">66.249.82.205</a>])by <a href="http://mx3.redhat.com">mx3.redhat.com</a> (8.13.1/8.13.1) with ESMTP id k19HHVl7018430for < <a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a>>; Thu, 9 Feb 2006 12:17:31 -0500 Received: by <a href="http://xproxy.gmail.com">xproxy.gmail.com</a> with SMTP id s18so140501wxcfor <<a href="mailto:linux-cluster@redhat.com"> linux-cluster@redhat.com</a>>; Thu, 09 Feb 2006 09:17:26 -0800 (PST) Received: by <a href="http://10.70.19.6">10.70.19.6</a> with SMTP id 6mr262192wxs;Thu, 09 Feb 2006 09:17:23 -0800 (PST) Received: by <a href="http://10.70.88.1"> 10.70.88.1</a> with HTTP; Thu, 9 Feb 2006 09:17:22 -0800 (PST) X-Message-Info: yilqo4+6kc46QQYnau3sRaNMYGNvwlwM82qFzuzDRDY= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=<a href="http://gmail.com">gmail.com </a>;h=received:message-id:date:from:to:subject:mime-version:content-type;b=Qo4QO2lKhn4K678nWOMfiwWHXvV71swnE12ulh/RbrvGFYndtiR9E0XICuvelrJg++v0nNT0ZVAhnKUUNMU/SEASR8ddTz/4oLent+xyNJye1zrGQRIrUHl1EFw1jk/I/vYC6F8p/J+KB2PpZpbq8xixOvVnJtaHdo1YevY90Z4= X-RedHat-Spam-Score: -2.579 X-loop: <a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a> X-BeenThere: <a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a> X-Mailman-Version: 2.1.5 Precedence: junk List-Id: linux clustering <<a href="http://linux-cluster.redhat.com">linux-cluster.redhat.com</a>> List-Unsubscribe: <<a href="https://www.redhat.com/mailman/listinfo/linux-cluster"> https://www.redhat.com/mailman/listinfo/linux-cluster</a>>,<mailto:<a href="mailto:linux-cluster-request@redhat.com">linux-cluster-request@redhat.com</a>?subject=unsubscribe> List-Archive: <<a href="https://www.redhat.com/archives/linux-cluster"> https://www.redhat.com/archives/linux-cluster</a>> List-Post: <mailto:<a href="mailto:linux-cluster@redhat.com">linux-cluster@redhat.com</a>> List-Help: <mailto:<a href="mailto:linux-cluster-request@redhat.com"> linux-cluster-request@redhat.com</a>?subject=help> List-Subscribe: <<a href="https://www.redhat.com/mailman/listinfo/linux-cluster">https://www.redhat.com/mailman/listinfo/linux-cluster</a>>,<mailto:<a href="mailto:linux-cluster-request@redhat.com"> linux-cluster-request@redhat.com</a>?subject=subscribe> Errors-To: <a href="mailto:linux-cluster-bounces@redhat.com">linux-cluster-bounces@redhat.com</a> Return-Path: <a href="mailto:linux-cluster-bounces@redhat.com"> linux-cluster-bounces@redhat.com</a> X-OriginalArrivalTime: 09 Feb 2006 17:17:42.0357 (UTC) FILETIME=[BC473850:01C62D9C] Hi all, My story is a little bit long so your patience is highly appreciated. I have a 4-node Oracle9iR2 RAC using GFS 6.0 as the cluster file system. Each node is running RHAS3 Update 6 for Itanium. We have 2 main pools: oracle_u01 to store the $ORACLE_HOME, and oracle_u02 to store the datafile, controlfile, redolog...Many thanks to the stabilization of GFS, this production cluster have been running pretty well. Two days ago, the manager wants to have a backup cluster with the same configuration except it consits of only one node. Due to the lack of 64-bit servers, we got a node from the production cluster out to make it become the 1-node backup cluster. We make new LUNs in our EMC CX500 SAN, and clone the production's oracle_u01 and oracle_u02 to them. We are able to mount these pools as GFS file system onto the backup cluster's node. So far so good until we try to write to oracle_u02. Kernel panic: GFS: Assertion failed on line 550 of file rgrp.c. It's pretty weird cauze writing to oracle_u01 just works. They are just the same pool device containing GFS file system, arent they? We even can not run df against u02! We can mount and explore it using commands like cd, ls, dir...but not df! There's no other message in /var/log/message, just the above error. If you need any other information, please drop me a line! Please help. Regards, --Thai Duong -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </blockquote> </div>