Hi Hemant, On Fri, Nov 10, 2017 at 6:13 AM, Hemant Chaudhary <hemantdude.chaudhary@xxxxxxxxx> wrote: > > Yes kill -Term works for me even without patch of code. Good. > I have one more doubt, I checked with ipcs command that there is only entry > of semaphore and no entry in shared memory. > > If I have nothing in shared memory then why am I using semaphore? > What are the critical section in apache for which it requires semaphores. The IPC semaphore is for synchronization between processes, not necessarily around a shared memory. Here, for instance, it's to serialize the access of the listeners to each (shared) listening socket. Regards, Yann. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx