[Linux-cluster] gfs2 hang

[Scooter Morris]

Greetings,
    We've got a two-node cluster running RHEL 5.1 that we've been 
experimenting with and have discovered a problem with gfs2.  As part of 
our build environment, we have some find scripts that walk a directory tree:

#! /bin/sh
for html in `/usr/bin/find curGenerated -name \*.html -print` ; do \
 cat $html > tmpCR.html ; \
 /bin/mv tmpCR.html $html ; \
done

The curGenerated directory has about 141 subdirectories, each of which 
has from 2-10 subdirectories.  What we find is that this find script 
will hang the operating system when it is executed within a gfs2 
partition that is shared between the two nodes.  Fencing is configured 
and detects the hung node and restarts it, but that's not much of a 
consolation.  The gfs2 partition lives on a fibreChannel array (HP 
EVA5000), and quotas are not turned on.  The gfs2 filesystem continues 
to operate normally on the other node.

Is this a known bug in gfs2?   Is there something we could do to help 
find this problem?

Thanks!

-- scooter