du, file descriptors

[Tim Waugh]

This report came to me from:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=90563

Try this:

rm -rf arena; mkdir arena; cd arena
seq 1 1024 | xargs touch
du -s *

I get this near the end of the output:
du: cannot open current directory: Too many open files

During the ./configure run the fd limit was detected as 1019.

The same problem can be observed by lowering ulimit and trying with
fewer files, of course.

Tim.
*/

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