What Is a Subreaper Process in Linux?
Contents What Is Subreaper Process? a Subreaper Fulfills the Role of Init(1) for Its Descendant Processes. When a Process Becomes Orphaned (I. E. , Its...
Contents
What is Subreaper process?
A subreaper fulfills the role of init(1) for its descendant processes. When a process becomes orphaned (i.e., its immediate parent terminates) then that process will be reparented to the nearest still living ancestor subreaper.
What causes a defunct process on the Linux system?
Defunct processes may also be known as “zombie” processes. They do not use any system resources – CPU, memory etc. … The reason a user may see such entries in the operating system’s process table, is simply because the parent process has not read the status of the process.