PAM required stack size

You can customize the stack size available for PAM modules.

The PAM feature loads operating system or third-party PAM modules (shared libraries) into the onedb user thread. The stack size requirements of these PAM modules cannot be predicted. For instance, on Linux™ some modules require more than 128 KB of stack space. Use the PAM_STACKSIZE configuration parameter to customize the stack size for PAM modules.

For example, set PAM_STACKSIZE in the onconfig file as follows: 
PAM_STACKSIZE 64 # Stack size needed for the PAM modules
(K Bytes)

On UNIX™, the default value of PAM_STACKSIZE is 32 KB.

On Linux, the default value is 128 KB plus the value of the STACKSIZE configuration parameter.