Process moves into the waiting state if it needs to wait for a resource, such as waiting for user input, or waiting for a file to become available. 4.6 Process Termination. The state of global data maintained by dynamic-link libraries (DLLs) may be compromised ifTerminateProcess is used rather thanExitProcess. Finally, the wait4 interface allows a process to request status codes without blocking. Process termination occurs when the process is terminated The exit() system call is used by most operating systems for process termination. A process requires more memory to execute but the system fails to provide enough memory to the process for its execution, then the process needs to be terminated. Process termination is a technique in which a process is terminated and release the CPU after completing the execution. An orphan process is a process whose parent process has terminated or finished, but it remains running itself. Process try to execute an instruction that is reserved for only  OS. Best Answer: In either case, process termination causes a status code to be returned to the parent of the terminating process (if the parent still exists). The process entry then is taken off the zombie list and is freed. Best Answer: When a process terminates, the state of the process object becomes signaled, releasing any threads that had been waiting for the process to terminate. The orphaned child will get a new foster parent, this is called init in the Unix world. While a process is executing, its termination status is STILL_ACTIVE. When users are trying to analyze the behavior of a long-running program, they will find it useful to be able to obtain this resource usage information before the termination of a process. First, you take a pill called mifepristone. When a process terminates, all of its system resources are freed up, open files flushed and closed, etc. > A process that has terminated, but whose parent has not yet called wait(), is known as a zombie process. Then, the child process should be terminated. Articles What will happen when a process terminates? The exit() routine then does the following: Finally, after the parent has been notified, the cpu_exit() routine frees any machine-dependent process resources and arranges for a final context switch from the process. When this happened, the process id of P1, as well as the P1 entry in the process table will released. For example, a process that wants to print a file on the printer, but the printer is defective. process termination in os | process termination diagram in os | process creation, What is TLB? What is a long-term scheduler? TerminateProcess is asynchronous; it initiates termination and returns immediately. The term zombie meaning, in general, are the “un-dead person”. It is generally the parent process's responsibility to read the exit code and allow the zombie process to completely go away. C/C++ are different from most of the popular languages: there is no runtime environment, there are no runtime checks, the actual machine language instructions will be generated and executed performing the read/write access at address zero. Once the parent calls wait(), the process identifier of the zombie process and its entry in the process table are released. When a process terminates, its kernel object is not destroyed until all processes that have open handles to the process have released those handles. In the operating system, its means un-dead process. In either case, process termination causes a status code to be returned to the parent of the terminating process (if the parent still exists). The zombie process is a process that has completed its execution but still, its entry remains in the process table.  The term zombie meaning, in general, are the “un-dead person”. Processes terminate either voluntarily through an exit system call or involuntarily as the result of a signal. Operating Systems, Server. View Answer . The wait4 request can wait for any direct child of the parent, or it can wait selectively for a single child process or for only its children in a particular process group. This process leaves the processor and releases all its resources. Your doctor or nurse may also give you antibiotics to take to prevent infection. Although the information is available inside the kernel and within the context of that program, there is no interface to request it outside that context until process termination.