EZD1658I

Explanation
 An error occurred during the establishment of
a signal handler in support of  the nssctl command
request.  
 In the message text:  signal
The signal that the nssctl command attempted
to register with the  signal handler.
errno
The z/OS® UNIX System Services return code. These return
codes are listed and described in the return
codes (errnos) information in z/OS UNIX System Services Messages and Codes.
description
Describes the meaning of the errno value. 

System action
 The nssctl command processing
ends.

Operator response
 Contact the system programmer.

System programmer response
 Correct the error indicated by errno and description,
and reissue the command.

User response
 Not applicable.
 nssctl

Problem determination
 Not applicable.

Source
 z/OS Communications
Server: z/OS UNIX nssctl command

Module
 nssctl.c

Routing code
 Not applicable.

Descriptor code
 Not applicable.

Automation
 Not applicable.

Example
  EZD1658I sigaction() failed for SIGABND : errno 121 (EDC5121I Invalid  argument.)