Removing semaphores shared memory keys with ipcrm

Sometimes we are not able to remove the shared memory keys with cleanipc 52 remove command, we can find the culprit this way :

ipcs | grep crdadm | awk '{printf("ipcrm -s %s\n", $2);}'

or if we already have the error like that

Dec 8 10:52:08 root@globiz63 logpipe[16010]: (start_app crd0v 52 crdadm 1): OsKey: 25238 0x00006296 Semaphore Key: 38 remove failed **** - errno = 1 (Not owner)


you may find the cultprit by

## ipcs | grep 0x00006296

it will give the ownere as well

now log in as the owner and give the command

## ipcrm -s 687 (687 is the semaphore ID)

it should go now.