hi i'm re-sending this mail again to seek more help since i haven't got any solution as yet. Additionaly , could it be an oracle taking up so much resource so that i postgres can't get any of them? Katsu ---------- Forwarded message ---------- Date: Sun, 18 Feb 2001 15:27:47 +1100 (EST) From: Katsuyuki Tanaka <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: IPC Shared Memory Hi when i run postmaster i got the following error and postmaser doesn't start, FATAL 1: InitProcGlobal: IpcSemaphoreCreate failed IpcSemaphoreCreate: semget failed (No space left on device) key=8888014, num=16, permission=600 This type of error is usually caused by an improper shared memory or System V IPC semaphore configuration. For more information, see the FAQ and platform-specific FAQ's in the source directory pgsql/doc or on our i made query to admin and the max shared mem setting is already set to the max possible * * IPC Shared Memory * 4294967295 max shared memory segment size (SHMMAX) 1 min shared memory segment size (SHMMIN) 100 shared memory identifiers (SHMMNI) 10 max attached shm segments per process (SHMSEG) I tried -N and -B but didn't have luck. Could anyone help me on this? This problem appeared after admin changed their config i believe, could that be it? Thanks Katsu