I have run across a problem with files that seem to become randomly 
"broken" but after a "mount -o remount" the files start working normally 
again.

I emailed the lkml even tho the kernel is a distro kernel hoping someone 
has at least an idea on what area of the kernel would *most likley* 
cause this problem to happen.

The kernel running is "2.4.19-35mdkenterprise". This is a distro kernel 
that is basically 2.4.19+patches.

[root@micro root]# cat /export/project/mam/jshupe/mam_ta/gizmos/ft/Makefile
cat: /export/project/mam/jshupe/mam_ta/gizmos/ft/Makefile: Invalid argument
[root@micro root]$ ls -al 
/export/project/mam/jshupe/mam_ta/gizmos/ft/Makefile
Makefile
-rw-rw-r--    1 jshupe   optint       1.2K Jun 24 16:40 Makefile

Other files in the same directory do not have this problem.

the filesystem is mounted like this:
[root@micro root]# cat /proc/mounts | grep project
/dev/sdb1 /export/project xfs rw 0 0
/dev/sdc1 /export/project1 xfs rw 0 0

This fixes the problem:

[root@micro root]# mount -o remount /export/project
[root@micro root]# cat /export/project/mam/jshupe/mam_ta/gizmos/ft/Makefile
[Makefile contents print out with no errors or data curruption]

I attached the boot up logs if needed.

-- 
Bryan Whitehead
SysAdmin - JPL - Interferometry and Large Optical Systems
Phone: 818 354 2903
driver@jpl.nasa.gov