Have you ever seen something similar:
# vi /some/path/to/a/large text/file "/some/path/to/a/large text/file"ex: 0602-026 No more memory for the append. Too many lines in the file. ex: 0602-101 Out of memory saving lines for undo.
and after you checked the
/etc/security/limit and verified that
/tmp are not too full the file still could not be open for reading? Well, today, it happen here.
After googling for a while I came out with this post on one of IBM sites: