Hi, I am using pam_limits.so from pam-0.72 and in /etc/pam.d/login and in /etc/security/limits.conf all of the limits I define get set on users logging in except the core size. The only other place that I see a "ulimit -c" command being executed is /etc/profile but having commented that out I still am getting a core size of 0 - even for root. Any help would be appreciated. TIA Pete