I mentioned this a while back, but I didn’t go into much detail on a long term solution. Let me re-set the situation. Linux server running apache2. It’s Mandrake (now Mandriva) (an older version.) When the system has suffered abrupt outage (power loss). Everything starts up normally with the exception of httpd2. It claims that it’s running but gives an error message. (For reference here’s the old article. Basically when you try to manually restart you see..
Cannot allocate shared memory: (17)File exists apache