/usr/bin/php5-cgi processes dont get killed

[xchrix]

hello

since 3 weeks i have the problem that my php5-cgi processes dont get killed. they need 100% of my RAM. when i stop apache2 some of them get killed but the most of them keep alive. when i run "killall /usr/bin/php5-cgi" its fine again.

does anybody know why they dont get killed by apache restart? in htop i see some processe in the tree of apache2. thats ok but the other are not in this tree. i have attached an screenshot. you see i dont have much RAM so i need every bit of it!

thanks for your help!