note 21173 deleted from ref.shmop by danbrown

Note Submitter: hackie at misato dot prohost dot org ---- Your segment probobly doesn't exist. You should probobly be using the c flag... "a" for access (sets SHM_RDONLY for shmat) use this flag when you need to open an existing shared memory segment for read only "c" for create (sets IPC_CREATE) use this flag when you need to create a new shared memory segment or if a segment with the same key exists, try to open it for read and write