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mroute: fix race condition during mrouter shutting down
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Authored by wma on Apr 23 2021, 11:13 AM.

Details

Summary

There is a race condition between V_ip_mrouter de-init

and ip_mforward handling. It might happen that mrouted
is cleaned up after V_ip_mrouter check and before
processing packet in ip_mforward.
Use epoch call aproach, similar to IPSec which also handles
such case.

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Repository
rG FreeBSD src repository
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