HP CIFS Server 3.0k Administrator's Guide version A.02.04

To resolve the above errors, you must increase the value of fixed mmap size in smb.conf
accordingly and then restart the HP CIFS Server.
Memory-mapped access fails when the system is low on memory resources. In this case, the
HP CIFS Server will terminate the connection and log the following error messages:
"ERROR. Abort due to munmap failure."
"ERROR. Abort due to tdb_mmap failure."
To resolve the above errors, you can turn off the memory map feature by setting the value
of use mmap to no and then restart the HP CIFS Server.
Constraints
The HP CIFS Server TDB memory map support has the following constraints:
NOTE: Do not have binaries from mixed versions of mmap and non-mmap daemons/utilities
of CIFS Server in the /opt/samba/bin subdirectory.
You must use the tdbbackup utility to backup TDB files, do not use the cp command to
backup TDB files.
TDB Memory-Mapped Access for HP CIFS Server 185