CRASH!!! Please help!

Can someone PLEASE help! It seems our engine crashed. We are running Online 7.2 on a Sun Sparc running Solaris 2.6. The following is an excerpt from the online.log file. I cannot bring the engine back online. Upon trying I get the error "oninit: Cannot open chunk '/opt/informix/dev/cbsc_root'. Errno = 5" Thank you in advance for your help. Kevin M. Carroll Mon Aug 10 00:31:41 1998 00:31:41 Checkpoint Completed: duration was 0 seconds. . . . 14:56:43 Checkpoint Completed: duration was 0 seconds. 14:59:18 dynamically allocated new shared memory segment (size 8388608) 15:01:43 Checkpoint Completed: duration was 0 seconds. . . . 15:56:47 Checkpoint Completed: duration was 0 seconds. 15:57:55 Assert Failed: Condition Failed (Bad pool pointer 0xd63b6c0), In (mt_shm_free) 15:57:55 INFORMIX-Universal Server Version 9.13.UC3 15:57:55 Who: Session(1117, informix@, 12796, 0) Thread(1356, oncheck, 0, 1) File: mtshpool.c Line: 2665 15:57:55 Action: Please notify Informix Technical Support. 15:57:59 Blocking whole system for max 0 secs 15:57:59 VP 3 timed out during system block, releasing 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:57:59 Releasing server from system block 15:58:22 See Also: /tmp/af.54c50c3, shmem.54c50c3.0 15:58:27 Assert Failed: No Exception Hander 15:58:27 INFORMIX-Universal Server Version 9.13.UC3 15:58:27 Who: Session(1117, informix@, 12796, 0) Thread(1356, oncheck, 0, 1) File: mtex.c Line: 228 15:58:27 Results: Exception Caught. Type: MT_EX_OS, Context: mem 15:58:27 Action: Please notify Informix Technical Support. 15:58:31 Blocking whole system for max 0 secs 15:58:31 VP 3 timed out during system block, releasing 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:31 Releasing server from system block 15:58:56 See Also: /tmp/af.54c50c3, shmem.54c50c3.1 15:59:03 mtex.c, line 228, thread 1356, proc id 2518, No Exception Hander. 15:59:05 The Master Daemon Died 15:59:06 invoke_alarm(): /bin/sh -c '/opt/informix/etc/log_full.sh 5 6"Internal Subsystem failure: 'MT'" "The Master Daemon Died" ' 15:59:06 invoke_alarm(): mt_exec failed, status -1, errno 0 15:59:06 PANIC: Attempting to bring system down Mon Aug 10 16:05:19 1998 16:05:19 Event alarms enabled. ALARMPROG = '/opt/informix/etc/log_full.sh' 16:05:19 Booting Language <c> from module <> 16:05:19 Loading Module <CNULL> 16:05:19 Booting Language <builtin> from module <> 16:05:19 Loading Module <BUILTINNULL> 16:05:30 DR: DRAUTO is 0 (Off) 16:05:30 INFORMIX-Universal Server Version 9.13.UC3 Software SerialNumber AAC#J335047 16:05:30 Cannot Open Primary Chunk '/opt/informix/dev/cbsc_root', errno = 5 16:05:30 INFORMIX-Universal Server Stopped. 16:05:30 mt_shm_remove: WARNING: may not have removed all/correct segments