Definitions for zombie process
zom·bie process

WiktionaryRate this definition:0.0 / 0 votes

1. zombie processnoun

   A child process that has terminated but is still listed in the process table, having not yet been reaped by its parent process.

WikipediaRate this definition:0.0 / 0 votes

1. Zombie process

   On Unix and Unix-like computer operating systems, a zombie process or defunct process is a process that has completed execution (via the exit system call) but still has an entry in the process table: it is a process in the "Terminated state". This occurs for the child processes, where the entry is still needed to allow the parent process to read its child's exit status: once the exit status is read via the wait system call, the zombie's entry is removed from the process table and it is said to be "reaped". A child process always first becomes a zombie before being removed from the resource table. In most cases, under normal system operation zombies are immediately waited on by their parent and then reaped by the system – processes that stay zombies for a long time are generally an error and cause a resource leak, but the only resource they occupy is the process table entry – process ID. The term zombie process derives from the common definition of zombie — an undead person. In the term's metaphor, the child process has "died" but has not yet been "reaped". Also, unlike normal processes, the kill command has no effect on a zombie process. Zombie processes should not be confused with orphan processes: an orphan process is a process that is still executing, but whose parent has died. When the parent dies, the orphaned child process is adopted by init (process ID 1). When orphan processes die, they do not remain as zombie processes; instead, they are waited on by init. The result is that a process that is both a zombie and an orphan will be reaped automatically.

WikidataRate this definition:0.0 / 0 votes

1. Zombie process

   On Unix and Unix-like computer operating systems, a zombie process or defunct process is a process that has completed execution but still has an entry in the process table. This entry is still needed to allow the parent process to read its child's exit status. The term zombie process derives from the common definition of zombie — an undead person. In the term's metaphor, the child process has "died" but has not yet been "reaped". Also, unlike normal processes, the kill command has no effect on a zombie process. When a process ends, all of the memory and resources associated with it are deallocated so they can be used by other processes. However, the process's entry in the process table remains. The parent can read the child's exit status by executing the wait system call, whereupon the zombie is removed. The wait call may be executed in sequential code, but it is commonly executed in a handler for the SIGCHLD signal, which the parent receives whenever a child has died. After the zombie is removed, its process identifier and entry in the process table can then be reused. However, if a parent fails to call wait, the zombie will be left in the process table. In some situations this may be desirable, for example if the parent creates another child process it ensures that it will not be allocated the same PID. On modern UNIX-like systems, the following special case applies: if the parent explicitly ignores SIGCHLD by setting its handler to SIG_IGN or has the SA_NOCLDWAIT flag set, all child exit status information will be discarded and no zombie processes will be left.

How to pronounce zombie process?

1. Alex

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   David

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   Mark

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   Daniel

   British

   Libby

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   Australian

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   Australian

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How to say zombie process in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of zombie process in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of zombie process in Pythagorean Numerology is: 3

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Zombie_Process
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Zombie_Process
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=zombie process