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Does the force kill command (kill -9) in linux cleanup the dynamically allocated memory with new operator in C++ application?

Tags:

c++

memory-management

linux

linux-kernel

virtual-memory

I have a C++ application to be run on Oracle Linux OS.

Consider, I have created few objects with new operator. Though I have used delete operator to deallocate it, but the force kill command would not reach this implementation.

But, if I force kill (kill -9) the process, will the dynamically allocated memory (using new operator) be de-allocated by the operating system? As I am not able to find the straightforward answer to this, I would like to have some information.

Thanks in advance.

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Vijaykumar Ainapur Avatar asked Aug 31 '20 09:08

Vijaykumar Ainapur

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1 Answers

But, if I force kill (kill -9) the process, will the dynamically allocated memory (using new operator) be de-allocated by the operating system?

Memory is tied to a process through the virtual memory system and the memory management unit (MMU). Thus yes, all memory (not just the one allocated through new) will be freed.

Exceptions to this are global inter-process communication (IPC) resources like shared memory, cached files, etc.

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Acorn Avatar answered Sep 28 '22 03:09

Acorn
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