System and method to improve harvesting of zombie processes...

Details System and method to improve harvesting of zombie processes... System and method to improve harvesting of zombie processes...

2007-12-11

2007-12-11

Thomson, William (Department: 2194)

Electrical computers and digital processing systems: interprogra

High level application control

C719S310000, C719S318000

Reexamination Certificate

active

10460537

ABSTRACT:
A system and method is provided for using a kernel exit routine, performed when a parent process exits, to efficiently remove zombie child processes. The kernel exit routine also re-parents active child processes to a standard system process, such as the init process. When the kernel exit routine re-parents the active child process to the init process, the child process is flagged indicating that the child's original parent process has already exited. A kernel routine, such as the swapper process, periodically cleans up flagged processes that have exited. In this manner, although active child processes are still re-parented to init, the init process is no longer burdened with the task of waiting on such processes when they exit.

REFERENCES:
patent: 6275857 (2001-08-01), McCartney
patent: 6480877 (2002-11-01), O'Donnell et al.
patent: 6496850 (2002-12-01), Bowman-Amuah
patent: 2002/0089508 (2002-07-01), Sowizral et al.
patent: 2003/0037290 (2003-02-01), Price et al.
Mauro, Jim and McDougall, Richard. Solaris Internals: Core Kernel Components. Prentice Hall, 2000.
Bovet, Daniel P. and Cesati, Marco. Understanding the Linux Kernel. O'Reilly Publishing, 2000.
John S. Quarterman, Abraham Silberschatz, and James L. Peterson. 4.2BSD and 4.3BSD as examples of the UNIX system. ACM Computing Surveys. vol. 17, Issue 4 (Dec. 1985).
U.S. Appl. No. 09/548,594, filed Apr. 13, 2000, MacPhail.

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