1. Created a distribute volume and mounted it
2. Ran this script on mount point 
    for i in {1..50}; do mkdir -p $i; cd $i; touch $i; done
3. "du -h ."  throws error message "du: fts_read failed: No such file or directory"

Fixed, works fine with 50 level depth of directories on a distribute volume with 6 bricks.