IPC resources for non-existent process still reported by ipcs

[Fedon Kadifeli]

When I run an "ipcs -a" command I see many IPC (memory, queue, semaphore) resources still reported. However I know that there are no processes using these resources and for example for shared memories I see NATTCH=0.

Is this a bug?

[Steven E. Protter]

Its probably not a bug.

At least not an OS bug you are hinting toward.

It could be the proceses where not shut down cleanly, leaving the shared memory alloocated.

It could be poor application programming that has created the dreaded memory leak. !!!

SEP

[Fedon Kadifeli]

I knew that when a process exits, dies or killed, all the resources it created are deleted provided these are not used by other processes.

How am I supposed to do this "garbage collection?"

[Fedon Kadifeli]

I removed the resources manually using "ipcrm". After all those years I have forgotten this command! :)