I'm running 4.1.12 on a cPanel server and there is a process by user nobody taking up all the CPU. If I switch to Apache the load is much lower. I'm not sure if this is due to the update or not but it did happen shortly after I updated to 4.1.12. We are running PHP 5.2.17:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10672 nobody 0 -19 187m 94m 12m R 117.3 1.2 6:01.22 litespeed (lshttpd)
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10672 nobody 0 -19 187m 94m 12m R 117.3 1.2 6:01.22 litespeed (lshttpd)