[Linux-cluster] mod_log_sql killing GFS mount?

[isplist at logicore.net]

 From the console;

Nov 25 14:27:11 compdev kernel: GFS: Trying to join cluster "lock_dlm", 
"vgcomp:web"
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: Joined cluster. Now 
mounting FS...
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: jid=3: Trying to 
acquire journal lock...
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: jid=3: Looking at 
journal...
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: jid=3: Done
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: Scanning for log 
elements...
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: Found 1 unlinked 
inodes
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: Found quota changes 
for 0 IDs
Nov 25 14:27:14 compdev kernel: GFS: fsid=vgcomp:web.3: Done

Within seconds of mounting the /Vol_web storage, I get an I/O error;

# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda1             37689468   2665908  33109016   8% /
none                    257784         0    257784   0% /dev/shm
/dev/mapper/VolGroup02-img
                     505788640      5552 505783088   1% /var/images
df: `/Vol_web': Input/output error



>I recently installed mod_log_sql on our web servers for central logging. 
>What's strange is that since I've done this, one of my nodes keeps losing one
>of it's GFS mounts. Web servers have the exact same mount yet aren't losing 
>their mount.

>There is no information in /var/log/ messages or any other log file showing 
>what might be going on.

>Any thoughts on what I might be looking for?

>Mike