Hi I have the same issue as fed.linuxgossip.

I am running
RHEL AS 4 (Update 5)

Filesystem = ext3

Same Problem:
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I can not create numeric files.

I can not create them via anything i can think of, via echo, dd, touch, etc etc.

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What I can do:

I can write to the same filesystem over NFS on a different machine just fine.

I can boot up off of a Live CD and write to the file system fine.

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I tried using statically linked binaries like busybox, and I can not create the files.

I updated the system completely to RHEL AS 4 Update 6, (including the kernel), and the problem still persists.

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Perderabo :
Changing shells didnt help, nor did quotes or escape characters.

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Anything else special you did fed.linuxgossip ?