Services on a client stop and cannot be restarted (4045590)

Date: July 2006
Effected NV Version: 7.4.x
OS Version: Windows
Plugin version: n/a
Application version: n/a


Description: The Netvault service on a Windows client stops for no apparent reason. When you try to start the service again the message "The service terminated unexpectedly" is returned. There are no clues in the log as to why the service stopped and cannot be restarted. The same configuration has possibly been used for months with no issues.





Symptoms: These symptoms point towards a failure to allocate shared memory but this is only apparent once LIBVERBOSE trace has been gathered on the "Process Manager" process.

Lines similar to the following will be seen in the trace:

1 SHM :1664 26 0 135122 Create shared memory 'Global\NetVault_SharedMemory_BLLDB_0'
3 SHM :1664 8 0 135122 shared memory name is already in use
3 SHM :1664 10 0 135122 FALSE = ShmAllocate(0x00437710, 2048000)
0 PMGR :1664 27 0 135122 failed to get shared memory for process manager
2 PMGR :1664 35 0 135122 PmgrInitSharedMem return FALSE
0 PMGR :1664 158 0 135122 Failed to initialize shared memory
1 PMGR :1664 146 0 135122 FALSE = PmgrInitialize()
0 PMGR :1664 2 1 135122 Failed to initialize giveup
3 PROCESS :1664 13 0 135122 ProcCleanup(1)