Solaris Resource Manager 1.3 System Administration Guide

Processes Attached to the root Lnode

For reasons of system management, processes attached to the root lnode are given almost all the CPU resources they demand. Therefore, if a CPU-bound process is attached to the root lnode, it will tie up a CPU, causing processes on other lnodes to slow or stop.

The following precautions can be taken to prevent this from occurring:

A program that runs as setuid-root does not automatically attach to the root lnode. Normally, the process remains attached to the lnode of the parent that created it, and only the effective UID is changed.