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authorSverker Eriksson <sverker@erlang.org>2019-02-14 18:07:15 +0100
committerSverker Eriksson <sverker@erlang.org>2019-02-14 18:07:15 +0100
commit750e9be58c7c245d49d6a7227b972bf0fd8c09ab (patch)
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parent0d6eeb82210b5ad848af972c3b2f687a52edd156 (diff)
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erts: Avoid heart killing a nicely exiting emulator
Symptom: Heart kills exiting emulator before is has flushed all ports and with HEART_KILL_SIGNAL=SIGABRT it may also produce unnecessary core dumps from doing init:reboot() for example. Problem: Heart port is closed together with all the others in handle_reap_ports() which is detected by heart OS process. Solution 1: Leave the heart port alone in handle_reap_ports() and let it be closed by OS when emulator exists. It doesn't need to be flushed anyway. Solution 2: When heart OS process gets EOF on connection let it wait max 5 seconds for emulator process to self terminate before trying to kill it.
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