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<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Hi,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I am running</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">ocfs2 cluster on 6 nodes. The OS version is RHEL 5.7 (Kernel :-</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT> <FONT FACE="Calibri">2.6.18-</FONT><FONT FACE="Calibri">308.1.1.el5</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">)</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">and the</FONT> <FONT FACE="Calibri">ocfs</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">2</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT> <FONT FACE="Calibri">rpm</FONT> <FONT FACE="Calibri">version</FONT><FONT FACE="Calibri">s are as below,</FONT></SPAN></P>
<UL DIR=LTR><UL DIR=LTR>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">[root@</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> ~]# uname -r</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">2.6.18-308.1.1.el5</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">[root@</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> ~]# rpm -qa |grep ocfs</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-tools-devel-1.4.4-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-2.6.18-308.1.1.el5debug-1.4.7-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-2.6.18-308.1.1.el5-1.4.7-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2console-1.4.4-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-tools-1.4.4-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-2.6.18-308.1.1.el5xen-1.4.7-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-2.6.18</FONT><FONT COLOR="#FF0000" FACE="Calibri">-308.1.1.el5-debuginfo-1.4.7-1.el5</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">ocfs2-tools-debuginfo-1.4.4-1.el5</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
</UL></UL>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Frequently on</FONT><FONT FACE="Calibri">e of the nodes in the cluster is goes to panic state</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> and requires hard reboot to bring back the system</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">, the alert log contents on the panicke</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">d node</FONT> <FONT FACE="Calibri">during this period is as below,</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<UL DIR=LTR><UL DIR=LTR>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: lockres: O000000000000000023c87800000000, owner=2, state=0</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: last used: 4299790521, refcnt: 5, on purge list: yes</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: on dirty list: no, on reco list: no, migrating pending: no</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: inflight locks: 1, asts reserved: 0</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42</FONT><FONT COLOR="#FF0000" FACE="Calibri">:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: refmap nodes: [ 2 ], inflight=1</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: granted queue:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: converting queue:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 12:42:54</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: blocked queue:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 14:22:25</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> syslogd 1.4.1: restart.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 14:22:2</FONT><FONT COLOR="#FF0000" FACE="Calibri">5</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: klogd 1.4.1, log source = /proc/kmsg started.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri">Jun 4 14:22:25</FONT></SPAN><SPAN LANG="en-us"> <FONT COLOR="#FF0000" FACE="Calibri">prod37</FONT></SPAN><SPAN LANG="en-us"><FONT COLOR="#FF0000" FACE="Calibri"> kernel: Linux version 2.6.18-308.1.1.el5 (mockbuild@hs20-bc2-3.build.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-52)) #1 SMP Fri Feb 17 16:51:01 EST 2012</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
</UL></UL>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Is this a known issue</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> ? Any fix ?</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="de-de"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="de-de"><FONT FACE="Calibri">Regards,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="de-de"><FONT FACE="Calibri">Ravi </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
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