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         | Updated: 
          
11 December 1998 | 
 
 
OpenVMS System Messages: Companion Guide for Help 
Message Users
MACHINECHK, machine check while in kernel mode
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable hardware error. Because of the severity of the error, 
further operation is impossible or could corrupt user data. After all 
physical memory is written to a system dump file, the system 
automatically reboots if the BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MAKEWSLE, make working set list entry error
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MAPCNTZER, attempted to generate zero length map pointer
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MAPHDRBAD, storage map header is bad; volume locked
Facility: MOUNT, Mount Utility
Explanation: An I/O error is encountered during a 
mount operation, or the header is corrupted. Existing files on the 
volume can be accessed, but other operations (for example, create and 
delete) are not possible.
User Action: Copy the files that are still accessible 
to a new volume. Reconstruct, as necessary, from backup media.
MARKUNL, exec image is marked for unload
Facility: LOADER, Executive Image Loader
Explanation: A call was made to the LDR$UNLOAD_IMAGE 
routine to unload a removable executive image that already has an 
outstanding unload request against it.
User Action: None.
MAXBAD, bad block table overflow for 'device-name'
Facility: BACKUP, Backup Utility
Explanation: The specified volume has too many bad 
blocks; either the DCL command INITIALIZE cannot initialize the volume, 
or the Backup utility cannot process the volume. This message generally 
indicates that the disk volume can no longer be used.
User Action: Check the status of the device and 
reenter the command. If the failure persists, reformat the disk. Notify 
the system manager. If the failure still persists and the disk pack is 
under warranty, return it to Digital.
MAXDEV, too many devices
Facility: MOUNT, Mount Utility
Explanation: Too many devices were specified for a 
MOUNT operation. For tape devices the limit is 16, for volume sets the 
limit is 256, and for shadow set members the limit is 3.
User Action: Correct the command and reenter it.
Maximum Number of Load Sharing Ports Exceeded
Facility: Cluster Port Driver
Explanation: The maximum number of ports capable of 
load sharing has been exceeded. The extra ports will not be used in 
load sharing activities.
User Action: None.
MAXLAB, too many volume labels
Facility: MOUNT, Mount Utility
Explanation: More than 256 labels were specified in 
the MOUNT command.
User Action: Correct and reenter the command.
MAXLINKS, maximum links already defined
Facility: LAT, LAT Facility
Explanation: The link cannot be created because the 
maximum number of allowable links is already defined.
User Action: None.
MAXSERV, maximum number of services exceeded
Facility: LAT, LAT Facility
Explanation: An attempt was made to create more than 
255 services on the local node.
User Action: A service must be deleted in order to add 
one.
MAXTOOBIG, maxunits specified is too large
Facility: SYSGEN, System Generation Utility
Explanation: The /MAXUNITS qualifier, as specified, 
causes an overrun in a word-sized length field when the length of the 
IDB is calculated.
User Action: Reenter the SYSGEN command CONNECT with a 
smaller /MAXUNITS number.
MAXUNITS, unit number greater than maximum units specified
Facility: SYSGEN, System Generation Utility
Explanation: In creating the I/O database, a unit 
number is encountered that is larger than the maximum number of units 
allowed (default = 8).
User Action: Retry the operation using the /MAXUNITS 
qualifier on the SYSGEN command CONNECT.
MAXVOLS, too many volumes in volume set 'device-name'
Facility: BACKUP, Backup Utility
Explanation: The volume set count recorded in the home 
block of relative volume 1 of an input volume set is greater than 255. 
Possibly, this value has been corrupted. The Backup utility cannot 
process the volume.
User Action: Reconstruct the volume set from backup 
media.
MAXVOLS, volume set has too many volumes to handle
Facility: RBLD, REBUILD Command (Mount Utility)
Explanation: The number of volumes in the volume set 
exceeds the maximum allowed (225).
User Action: If this error can be reliably reproduced, 
contact a Digital support representative.
MBACBHUNG, MBA CBHUNG bit set
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MBXCRERR, error creating operator reply mailbox
Facility: MOUNT, Mount Utility
Explanation: The reply mailbox cannot be created.
User Action: Take action based on the accompanying message.
MBXRDERR, error reading operator reply mailbox
Facility: MOUNT, Mount Utility
Explanation: You are unable to read a mailbox.
User Action: Take action based on the accompanying message.
MEMALLOC, cannot allocate sufficient memory
Facility: RBLD, REBUILD Command (Mount Utility)
Explanation: The rebuild operation cannot allocate 
sufficient memory to complete its operation.
User Action: Take action based on the accompanying 
message.
Memory dump complete after 'nn' write error(s)
Facility: BUGCHECK, System Bugcheck
Explanation: The memory dump is finished; however, 
there are one or more write errors.
User Action: When the system reboots, copy the dump to 
another file. Determine the text associated with the hexadecimal status 
of previous messages by using the /STATUS qualifier with the DCL 
command HELP/MESSAGE or by using the F$MESSAGE lexical function or an 
equivalent. If the status indicates a possible disk problem, see the 
user action for the accompanying message.
Memory dump incomplete - dump file 'nn' blocks too small
Facility: BUGCHECK, System Bugcheck
Explanation: The system is unable to write out the 
remaining 'nn' pages of a complete, physical memory dump (SYSGEN 
parameter DUMPSTYLE set to 0). The dump cannot be used because analysis 
depends on the system page table, which is kept in the uppermost 
physical pages of memory (that is, the last data to be written if this 
style of dump is written).
User Action: If there is room on the volume that holds 
the system dump file, expand the dump file. If space is limited, try to 
write a selective dump. Refer to the OpenVMS System Manager's Manual for the correct 
procedures.
Message Free Queue Insert Failure
Facility: Cluster Port Driver
Explanation: The port driver attempts to reinitialize 
the port; after 50 failed attempts, it marks the device off line. This 
error is caused by a failure to obtain access to an interlocked queue. 
Possible sources of the problem are CI hardware failures or memory, SBI 
(VAX-11/780), CMI (VAX-11/750), BI, PCI, or XMI contention.
User Action: Contact a DIGITAL support representative.
Message Free Queue Remove Failure
Facility: Cluster Port Driver
Explanation: The port driver attempts to reinitialize 
the port; after 50 failed attempts, it marks the device off line. This 
error is caused by a failure to obtain access to an interlocked queue. 
Possible sources of the problem are CI hardware failures or memory, SBI 
(VAX-11/780), CMI (VAX-11/750), BI, PCI, or XMI contention.
User Action: Contact a DIGITAL support representative.
MFYNULPGFL, FREWSLE - no backing store, page not modified
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
Micro-code Verification Error
Facility: Cluster Port Driver
Explanation: The port driver attempts to reinitialize 
the port; after 50 failed attempts, it marks the device off line.
User Action: Contact a DIGITAL support representative to check the port 
hardware.
MISCONFUNI, UNIBUS device 'device-name' has been misconfigured, 
interrupt vector should be 'interrupt-vector-value'
Facility: SYSGEN, System Generation Utility
Explanation: The vector on the specified device needs 
to be changed.
User Action: Contact a DIGITAL support representative.
MMEABORT, mount aborted by media management subsystem
Facility: MOUNT, Mount Utility
Explanation: The media management subsystem has 
aborted the mount request.
User Action: Correct the problem reported by the media 
management subsystem and retry the mount operation.
MNTCLUFAIL, mount/cluster failed on one or more nodes in the cluster
Facility: MOUNT, Mount Utility
Explanation: One or more nodes in the cluster failed 
to mount the device.
User Action: Take action based on the accompanying 
messages.
MODIFYERR, error modifying quota file
Facility: RBLD, REBUILD Command (Mount Utility)
Explanation: An error occurred while trying to access 
the quota file.
User Action: Take action based on the accompanying 
message.
MODLINK, modified link 'link-name'
Facility: LAT, LAT Facility
Explanation: The specified link has been modified by 
LATCP.
User Action: None.
MODNODE, modified characteristic(s) of local node
Facility: LAT, LAT Facility
Explanation: Characteristics of the local node have 
been modified by LATCP.
User Action: None.
MODOUTAI, RMS after-image journaling disabled on saved copy of 
'file-spec'
Facility: BACKUP, Backup Utility
Explanation: After-image journaling has been disabled 
on the saved copy of the file.
User Action: None.
MODOUTAIS, RMS after-image journaling disabled on saved copy of 
'file-spec' ('file-id')
Facility: BACKUP, Backup Utility
Explanation: After-image journaling has been disabled 
on the saved copy of the file in the standalone backup operation. If 
the disk is restored, the journal command must be reentered.
User Action: None.
MODOUTBI, RMS before-image journaling disabled on saved copy of 
'file-spec'
Facility: BACKUP, Backup Utility
Explanation: Before-image journaling has been disabled 
in the backup operation. If the disk is restored, the journal command 
must be reentered.
User Action: None.
MODOUTBIS, RMS before-image journaling disabled on saved copy of 
'file-spec' ('file-id')
Facility: BACKUP, Backup Utility
Explanation: Before-image journaling has been disabled 
on the saved copy of the file in the standalone backup operation. If 
the disk is restored, the journal commands must be reentered.
User Action: None.
MODPORT, modified port 'port-name'
Facility: LAT, LAT Facility
Explanation: The specified port has been modified by 
LATCP.
User Action: None.
MODRELNBAK, no backing store address for modified page
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MODSERVICE, modified service 'service-name'
Facility: LAT, LAT Facility
Explanation: The specified service has been modified 
by LATCP.
User Action: None.
MOUNEWVOL, MOUNT new relative volume nn (volume label) on 'device-name'
Facility: MOUNT, Mount Utility
Explanation: During a write operation, the end-of-tape 
has been reached on the last reel of a volume set.
User Action: Mount a new volume to be added to the 
tape set.
MOUNTDEV, please mount 'name' device 'device-name'
Facility: MOUNT, Mount Utility
Explanation: A request for operator assistance on 
MOUNT occurred.
User Action: Wait for operator assistance, perform the 
request yourself, or abort the request.
MOUNTED, 'volume-label' mounted on 'device-name'
Facility: MOUNT, Mount Utility
Explanation: This message announces a successful mount.
User Action: None.
MOUNTERR, volume 'volume' on 'device' was not mounted because 'reason'
Facility: BACKUP, Backup Utility
Explanation: The Backup utility was unable to mount 
the specified volume for one of the following reasons:
  -  The expiration date specified in the volume label is in the 
  future. That is, the data on the volume has not expired.
  
- The volume label does not match the one requested. The label 
  specified in the BACKUP command (either explicitly or implicitly) does 
  not match the label on the volume.
  
- The volume is protected against access. The protection specified in 
  the volume header disallows access by the person entering the BACKUP 
  command.
User Action: At this point, the Backup utility allows 
you to either quit the operation, overwrite the volume label and 
continue, or put a new volume in the drive and continue processing. To 
abort the operation, enter the QUIT command at the BACKUP> prompt. 
To overwrite information in the volume header and continue processing, 
enter the OVERWRITE command at the BACKUP> prompt. To restart the 
operation with a new volume, enter the NEW command at the BACKUP> 
prompt. If the QUIT or NEW command is chosen, the Backup utility 
automatically dismounts the volume.
MOUNTF11, 'file-spec' must be mounted Files--11
Facility: BACKUP, Backup Utility
Explanation: The specified volume is mounted with the 
/FOREIGN qualifier. However, for the given operation, the volume must 
be mounted without the /FOREIGN qualifier.
User Action: Reevaluate the operation, checking that 
the correct I/O devices have been specified and that the /SAVE_SET, 
/PHYSICAL, and /IMAGE qualifiers are properly used. Then, if 
appropriate, mount the specified volume without the /FOREIGN qualifier, 
and reenter the command.
MOUNTFOR, 'device' must be mounted /FOREIGN
Facility: BACKUP, Backup Utility
Explanation: The specified volume is mounted without 
the /FOREIGN qualifier. However, for the given operation, the volume 
must be mounted with the /FOREIGN qualifier.
User Action: Reevaluate the operation, checking that 
the correct I/O devices have been specified and that the /SAVE_SET, 
/PHYSICAL, and /IMAGE qualifiers are properly used. Then, if 
appropriate, mount the specified volume with the /FOREIGN qualifier, 
and reenter the command.
MOUVOL, MOUNT relative volume 'nn' on 'device-name'
Facility: MOUNT, Mount Utility
Explanation: During a read operation, the operator is 
requested to mount the next reel in a multivolume set.
User Action: Mount the indicated reel on the device 
specified.
MSCPSERV, Fatal error detected by MSCP server
Facility: BUGCHECK, System Bugcheck
Explanation: The MSCP server encountered an 
irrecoverable error.
User Action: Keep a copy of the crash dump and contact 
a DIGITAL support representative.
MTXCNTNONZ, mutex count nonzero at system service exit
Facility: BUGCHECK, System Bugcheck
Explanation: The OpenVMS software detected an 
irrecoverable, inconsistent condition. After all physical memory is 
written to a system dump file, the system automatically reboots if the 
BUGREBOOT system parameter is set to 1.
User Action: Use the BACKUP command with the  /IGNORE=NOBACKUP qualifier to make a backup save set of the  system dump file and the error log file active at the time of the  error. Contact a DIGITAL support representative and describe the conditions  leading to the error.
MULTIPLE_ISDS, more than one image section of a given type
Facility: LOADER, Executive Image Loader
Explanation: A load request was made for an image that 
was not linked correctly because it contains more than one each of the 
following types of sections:
  - fixup
  
- initialization
  
- nonpaged code
  
- nonpaged data
  
- paged code
  
- paged data
User Action: Correct the link procedure used to build 
the executive image; specify the appropriate PSECT_ATTR and COLLECT 
statements to ensure that each executive image contains only one each 
of the types of information listed above.
MULTREAD, error reading file 'file-name'
Facility: BACKUP, Backup Utility
Explanation: The Backup utility cannot read the 
specified file. Multiple attempts to read the file failed.
User Action: Determine why the file cannot be read and 
repeat the backup operation.
If the input disk is a disk served by Distributed Files Services (DFS), 
check for problems with the DFS server connection.