POSIX.1 Error Messages
(Subsystem 517)

1

MESSAGE

[EPERM] Operation not permitted. (POSIX.1 ERROR 1)

CAUSE

An attempt was made to perform an operation limited to processes with appropriate privileges or to the owner of a file or other resource.

ACTION

Check privilege or ownership of the file or other resource.

2

MESSAGE

[ENOENT] No such file or directory. (POSIX.1 ERROR 2)

CAUSE

A component of a specified pathname did not exist, or the pathname was an empty string.

ACTION

Use the pathname of the existing file.

3

MESSAGE

[ESRCH] No such process. (POSIX.1 ERROR 3)

CAUSE

No process could be found corresponding to that specified by the given process ID.

ACTION

Check the process ID being used or use a valid process ID.

4

MESSAGE

[EINTR] Interrupted function call. (POSIX.1 ERROR 4)

CAUSE

An asynchronous signal (such as SIGINT or SIGQUIT; see the description of the header <signal.h> in the MPE/iX Developer's Kit Reference Manual) was caught by the process during the execution of an interruptible function. If the signal handler performs a normal return, the interrupted function call may return this error condition.

ACTION

No action.

5

MESSAGE

[EIO] Input/output error. (POSIX.1 ERROR 5)

CAUSE

Some physical input or output error occurred. This error may be reported on a subsequent operation on the same file descriptor. Any other error-causing operation on the same file descriptor may cause the [EIO] error indication to be lost.

ACTION

Check input/output device status.

6

MESSAGE

[ENXIO] No such device or address. (POSIX.1 ERROR 6)

CAUSE

Input or output on a special file referred to a device that did not exist, or made a request beyond the limits of the device. This error may also occur when, for example, a tape drive is not online or a disk pack is not loaded on a drive.

ACTION

Check the status of the device or the address being used.

7

MESSAGE

[E2BIG] Arg list too long. (POSIX.1 ERROR 7)

CAUSE

The sum of the number of bytes used by the new procedure image's argument list and eviroment list was greater than the system imposed limit of {ARG_MAX} bytes.

ACTION

Use less arguments.

8

MESSAGE

[ENOEXEC] Exec format error. (POSIX.1 ERROR 8)

CAUSE

A request was made to execute a file that, although it had the appropriate permissions, was not in the format required by this implementation for executables files. See the MPE/iX Developer's Kit Reference Manual for the requirements of exec()'able files.

ACTION

Only attempt to exec() exec()'able files.

9

MESSAGE

[EBADF] Bad file descriptor. (POSIX.1 ERROR 9)

CAUSE

A file descriptor argument was out of range, referred to no open file, or a read (write) request was made to a file that was only open for writing (reading).

ACTION

Open file or use correct access.

10

MESSAGE

[ECHILD] No child processes. (POSIX.1 ERROR 10)

CAUSE

A wait() or waitpid() function was executed by a process that had no existing or unwaited-for child processes.

ACTION

Create one or more child processes.

11

MESSAGE

[EAGAIN] Resource temporarily unavailable. (POSIX.1 ERROR 11)

CAUSE

This is a temporary condition, and later calls to the same routines may complete normally.

ACTION

Try again.

12

MESSAGE

[ENOMEM] Not enough space. (POSIX.1 ERROR 12)

CAUSE

The new process image required more memory than allowed by the hardware or by system-imposed memory management constraints.

ACTION

Increase memory usage capability of user or size of the process image.

13

MESSAGE

[EACCES] Permission Denied. (POSIX.1 ERROR 13)

CAUSE

An attempt was made to access a file in a way forbidden by its file access permissions.

ACTION

Use correct access if you are able.

14

MESSAGE

[EFAULT] Bad Address. (POSIX.1 ERROR 14)

CAUSE

The system detected an invalid or NULL address in attempting to use an argument of a call.

ACTION

Check the address being used.

16

MESSAGE

[EBUSY] Resource busy. (POSIX.1 ERROR 16)

CAUSE

An attempt was made to use a system resource that was not available at the time because it was being used by a process in a manner that would have conflicted with the request being made by this process.

ACTION

Have the resource released and try again.

17

MESSAGE

[EEXIST] File exists. (POSIX.1 ERROR 17)

CAUSE

An existing file specified in an inappropriate context; for instance, as the new directory name in a mkdir() function.

ACTION

Check to see if file or directory already exists.

18

MESSAGE

[EXDEV] Improper link. (POSIX.1 ERROR 18)

CAUSE

A link to a file on another file system was attempted.

ACTION

Do not attempt a link to a file located across a file system.

19

MESSAGE

[ENODEV] No such device. (POSIX.1 ERROR 19)

CAUSE

An attempt was made to apply an inappropriate function to a device; for example, trying to read a write-only device such as a printer.

ACTION

Use valid access to the device.

20

MESSAGE

[ENOTDIR] Not a directory. (POSIX.1 ERROR 20)

CAUSE

A component of the specified pathname existed, but it was not a directory, when a directory was expected.

ACTION

Use the correct pathname.

21

MESSAGE

[EISDIR] Is a directory. (POSIX.1 ERROR 21)

CAUSE

An attempt was made to open a directory as an ordinary file which is not permitted by this implementation.

ACTION

Use directory functions to operate on directories.

22

MESSAGE

[EINVAL] Invalid argument. (POSIX.1 ERROR 22)

CAUSE

Some invalid agrument was supplied. [For example, specifying an undefined signal to a signal() or kill() function].

ACTION

Use valid arguments.

23

MESSAGE

[ENFILE] Too many open files in system. (POSIX.1 ERROR 23)

CAUSE

Too many files are currently open in the system. The system reached its predefined limit for simultaneously open files and temporarily could not accept requests to open another one.

ACTION

Close unneeded files.

24

MESSAGE

[EMFILE] Too many open files. (POSIX.1 ERROR 24)

CAUSE

An attempt was made to open more than the maximum number of {OPEN_MAX} file descriptors allowed in this process.

ACTION

Close unneeded files.

25

MESSAGE

[ENOTTY] Inappropriate I/O control operation. (POSIX.1 ERROR 25)

CAUSE

A control function was attempted for a file or a special file for which the operation was inappropriate.

ACTION

Use appropriate control for file.

27

MESSAGE

[EFBIG] File too large. (POSIX.1 ERROR 27)

CAUSE

The size of a file would exceed an implementation-defined maximum file size.

ACTION

Use smaller size files.

28

MESSAGE

[ENOSPC] No space left on device. (POSIX.1 ERROR 28)

CAUSE

During a write() function on a regular file, or when extending a directory, there was no free space left on the device.

ACTION

Deallocate unneeded disk space.

29

MESSAGE

[ESPIPE] Invalid seek. (POSIX.1 ERROR 29)

CAUSE

An lseek() function was issued on a pipe or FIFO.

ACTION

Do not attempt seeks on pipes or FIFOs.

30

MESSAGE

[EROFS] Read-only file system. (POSIX.1 ERROR 30)

CAUSE

An attempt was made to modify a file or directory on a file system that was read-only at that time.

ACTION

None.

31

MESSAGE

[EMLINK] Too many links. (POSIX.1 ERROR 31)

CAUSE

An attempt was made to have the link count of a single file exceed {LINK_MAX}.

ACTION

Reduce the number of links to the offending file or directory.

32

MESSAGE

[EPIPE] Broken pipe. (POSIX.1 ERROR 32)

CAUSE

A write was attempted on a pipe or FIFO for which there was no process to read the data.

ACTION

Re-establish the pipe or FIFO.

33

MESSAGE

[EDOM] Domain error. (POSIX.1 ERROR 33)

CAUSE

Defined in the C Standard; an input argument was outside the defined domain of the mathematical function.

ACTION

Adhere to mathematical domain requirements.

34

MESSAGE

[ERANGE] Result too large. (POSIX.1 ERROR 34)

CAUSE

Defined in the C Standard; the result of the function was too large to fit in the available space.

ACTION

Use a larger buffer space with the function.

35

MESSAGE

[ENOMSG] No IPC message waiting. (POSIX.1 ERROR 35)

CAUSE

The specified message queue does not contain a message of the type specified in the mtype parameter and IPC_NOWAIT was specified in the msgflg parameter.

ACTION

None. Application dependent. The receive operation can be retried.

36

MESSAGE

[EIDRM] Identifier removed. (POSIX.1 ERROR 36)

CAUSE

The System V IPC resource ID used has been removed.

ACTION

Use an allocated IPC resource.

45

MESSAGE

[EDEADLK] Resource deadlock avoided. (POSIX.1 ERROR 45)

CAUSE

An attempt was made to lock a system resource that would have resulted in a deadlock situation.

ACTION

Try again at a later time or free the resources which would have lead deadlock.

46

MESSAGE

[ENOLCK] No locks available. (POSIX.1 ERROR 46)

CAUSE

A system-imposed limit on the number of simultaneous file and record locks was reached, and no more were available at that time.

ACTION

Remove unneeded locks and try again.

47

MESSAGE

[EEXCL] File can't be opened exclusively. (POSIX.1 ERROR 47)

CAUSE

Attempt to open an existing file exclusively failed because file is already opened.

ACTION

Assure that no other processes have the file opened before attempting to open the file exclusively.

48

MESSAGE

[EIMPL] Implementation error. (POSIX.1 ERROR 48)

CAUSE

One of several implementation-specific errors of occurred. See the MPE/iX Developer's Kit Reference Manual for more information.

ACTION

See the MPE/iX Developer's Kit Reference Manual

50

MESSAGE

[ESYSERR] Internal Operating System error. (POSIX.1 ERROR 50)

CAUSE

This implementation has detected that an internal Operating System error has occurred which is not applicable to the POSIX.1 environment.

ACTION

Consult a HP support engineer.

56

MESSAGE

[ESEEK] Device does not support seeking. (POSIX.1 ERROR 56)

CAUSE

The device is such that does not support the concept of seeking by the lseek() function.

ACTION

Do not attempt a seek on such a device.

233

MESSAGE

[ENOBUFS] No buffer space available. (POSIX.1 ERROR 233)

CAUSE

Buffer space allocated from the process heap space is currently depleted.

ACTION

Deallocate or release unused buffer space.

247

MESSAGE

[ENOTEMPTY] Directory not empty. (POSIX.1 ERROR 247)

CAUSE

A directory with entries other than dot and dot-dot was supplied when an empty directory was expected.

ACTION

Remove all file and directories in target directory.

248

MESSAGE

[ENAMETOOLONG] Filename too long. (POSIX.1 ERROR 248)

CAUSE

The size of a pathname string exceeded {PATH_MAX}, or a pathname component was longer than {NAME_MAX} and {_POSIX_NO_TRUNC} was in effect for that file.

ACTION

Use shorter pathnames or filenames.

251

MESSAGE

[ENOSYS] Function not implemented. (POSIX.1 ERROR 251)

CAUSE

An attempt was made to use a function that is not available in this implementation.

ACTION

Refer to the MPE/iX Developer's Kit Reference Manual for implementation-defined functionality.