informix起不来了

21:36:30  Fast Recovery Switching to Log 15
21:36:31  Logical Recovery has reached the transaction cleanup phase.
21:36:31  Logical Recovery Complete.
          0 Committed, 0 Rolled Back, 0 Open, 0 Bad Locks

21:36:32  oninit: Fatal error in shared memory initialization

21:36:32  IBM Informix Dynamic Server Stopped.

21:36:32  mt_shm_remove: WARNING: may not have removed all/correct segments
informix@dmsrvr:~> ipcs -a

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status

------ Semaphore Arrays --------
key        semid      owner      perms      nsems

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages

informix@dmsrvr:~>