compat_ipc_perm    53 ipc/compat.c   	struct compat_ipc_perm sem_perm;
compat_ipc_perm    64 ipc/compat.c   	struct compat_ipc_perm msg_perm;
compat_ipc_perm    80 ipc/compat.c   	struct compat_ipc_perm shm_perm;