troubleshooting file corruption problem

[Kent Tong <kent@cpttm.org.mo>]

Hi,

I'm running kernel 2.6.8-15, lvm2 v2.01.04-5 and acl v2.2.23-1 on a 
Sunblade 100. In a few months we have experienced twice of file 
corruption on an ext3 filesystem created ontop of lvm2 logical volume. 
The symptom is that the filesystem is remounted as read-only 
(this is due to the option "errors=remount-ro" in /etc/fstab). The
only relevant errors in the log files are:

kernel: init_special_inode: bogus i_mode (3016)
kernel: init_special_inode: bogus i_mode (3125)
kernel: init_special_inode: bogus i_mode (3144)
kernel: init_special_inode: bogus i_mode (3231)
kernel: init_special_inode: bogus i_mode (3423)
kernel: init_special_inode: bogus i_mode (3452)

I've run smartmontools to check the disks but no errors are found.
I've run "fsck -c" to look up bad blocks but nothing is found.

What else can I do to troubleshoot the problem?

Thanks!