How to Change the Value for ARG_MAX in Oracle Linux

Applies to: 

Oracle Cloud Infrastructure - Version N/A and later

Linux x86-64

Goal

In Oracle Linux, the POSIX compliant ARG_MAX parameter determines the possible length in bytes of a single command executed by a given user. How can it be changed?

 

Solution

The minimum value of ARG_MAX in Oracle Linux is the value defined in /usr/include/linux/limits.h:

 $ define ARG_MAX      131072   /* # bytes of args + environ for exec() */

 

However, this is usually not the default value for ARG_MAX for a user.

In Oracle Linux, the default value for ARG_MAX for a user is 256x the stack value for the active user session.