Running a gfs2 filesystem on RHEL 5.3 PPC (kernel 2.6.18-128.1.10.el5) backed by clvm (two nodes). # gfs2_tool list 253:4 domus:homedir1 # gfs2_tool getargs /domus1 data 2 suiddir 0 quota 0 posix_acl 0 num_glockd 1 upgrade 0 debug 0 localflocks 0 localcaching 0 ignore_local_fs 0 spectator 0 hostdata jid=1:id=196610:first=0 locktable lockproto As soon as I mount the gfs2 filesystem on either node, that node's system load average goes to 1.00 and stays there until the filesystem is unmounted. top, sar and iostat all show the system as being completely idle, and no iowait going on: Linux 2.6.18-128.1.10.el5 (domusA.esri.com) 05/13/2009 12:00:01 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 12:10:01 AM 0 145 1.00 1.00 1.00 12:20:01 AM 0 145 1.00 1.00 1.00 12:30:01 AM 0 145 1.00 1.01 1.00 12:40:01 AM 0 145 1.00 1.00 1.00 12:50:01 AM 0 145 1.01 1.01 1.00 01:00:01 AM 0 145 1.00 1.00 1.00 01:10:01 AM 0 145 1.00 1.00 1.00 12:00:01 AM CPU %user %nice %system %iowait %steal %idle 12:10:01 AM all 0.09 0.00 0.46 0.02 0.00 99.43 12:20:01 AM all 0.09 0.00 0.45 0.02 0.00 99.44 12:30:01 AM all 0.09 0.52 0.48 0.02 0.00 98.88 12:40:01 AM all 0.10 0.00 0.45 0.02 0.00 99.43 12:50:01 AM all 0.09 0.00 0.45 0.02 0.00 99.44 01:00:01 AM all 0.09 0.00 0.45 0.02 0.00 99.44 01:10:01 AM all 0.09 0.00 0.45 0.02 0.00 99.43 Can anyone speculate on what might be causing this? I found one other post on the subject[1], but there were no replies. Would any other information be helpful? Ray [1]: http://www.redhat.com/archives/linux-cluster/2009-March/msg00166.html -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster