The folder is /tempdisk

I get an error saying it's not empty from the following commands
rm -r /tempdisk
rm -r -f /tempdisk
rmdir /tempdisk

The file system is also /tempdisk
Through smitty or via command line I get an error saying the resource is busy.
I thought I might be in it but it's not that, and no one else is as I killed every connection to the lpar bar mine.

ls -la gives back . & .. that's it.

I'm on AIX 5.3 ML03