The difference between native thread termination and managed thread abort

When the managed thread is aborted, an exception is introduced at the thread's current instruction pointer. This allows the finally blocks to execute as the thread winds down.

The runtime is also aware of code that are performing non-interruptable operations like manipulating system state and so it will delay introducing the abort exception until a safe point has reached.

Terminating a native thread does not free the user-mode stack. The thread can hold onto locks that after termination will remain in the acquired state. This thread could also have been modifying critical system state which gets corrupted when interrupted. If you terminate a native thread, you should probably be terminating the process as well.

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