New location for nproc limit in RHEL-6 --> "sudo: unable to change to runas uid: too many processes"

-bash-4.1$ cat /etc/security/limits.d/90-nproc.conf

# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.

#*          soft    nproc     1024
*          soft    nproc     unlimited
root       soft    nproc     unlimited