pmon & smon transaction recovery/rollback

Hi

I have a basic question, we all know that pmon's task is to cleanup resource by failed processes such as rolling back transaction, releasing locks and resources etc. We also know that smon rolls back uncommited transactions after instance failure.

My question is, I killed a couple of processes this morning and smon went crazy performing parallel recovery, I was wondering shouldnt that pmon's job? There was no instance failure.

TIA Alex

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