11-26-2001
The most probable cause is that someone did a "kill -9" to fbackup.
Another possibility is that your system is out of semaphores.
Type "ipcs -sp" and see how many semaphores you have. If this number is equal to the value semmns you are out of semaphores. You should increase the value of semmns and rebuild the kernel.
If the number of semaphores is less tham semmns then someone must have did the "kill -9" to a running fbackup process. It is possible to use ipcrm to remove the semaphore, but it's tough to know which one. A reboot will may be the safest bet. And remind people to lay off the "kill -9" command.
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LEARN ABOUT ULTRIX
semget
semget(2) System Calls Manual semget(2)
Name
semget - get set of semaphores
Syntax
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
int semget (key, nsems, semflg)
key_t key;
int nsems, semflg;
Description
The system call returns the semaphore identifier associated with key. A semaphore identifier and associated data structure and set con-
taining nsems semaphores are created for key, if one of the following is true:
o The key is equal to IPC_PRIVATE
o The key does not already have a semaphore identifier associated with it, and (semflg & IPC_CREAT ) is true.
For further information, see
Upon creation, the data structure associated with the new semaphore identifier is initialized as follows:
o The sem_perm.cuid, sem_perm.uid, sem_perm.cgid and sem_perm.gid are set equal to the effective user ID and effective group ID, respec-
tively, of the calling process.
o The low-order nine bits of sem_perm.mode are set equal to the low-order nine bits of semflg.
o The sem_nsems is set equal to the value of nsems.
o The sem_otime is set equal to zero (0) and sem_ctime is set equal to the current time.
Return Values
Upon successful completion, a nonnegative integer, namely a semaphore identifier, is returned. Otherwise, a value of -1 is returned and
errno is set to indicate the error.
Diagnostics
The semget system call fails if any of the following is true:
[EINVAL] The nsems is either less than or equal to zero or greater than the system-imposed limit
[EACCES] A semaphore identifier exists for key, but operation permission, as specified by the low-order nine bits of semflg would not
be granted. For further information, see
[EINVAL] A semaphore identifier exists for key, but the number of semaphores in the set associated with it is less than nsems and
nsems is not equal to zero.
[ENOENT] A semaphore identifier does not exist for key and (semflg & IPC_CREAT ) is false.
[ENOSPC] A semaphore identifier is to be created but the system-imposed limit on the maximum number of allowed semaphore identifiers
in the system would be exceeded.
[EEXIST] A semaphore identifier exists for key but ((semflg & IPC_CREAT ) & (semflg & IPC_EXCL )) is true.
See Also
semctl(2), semop(2), ftok(3)
semget(2)