To view an individual PR, use:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id).
The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and ob
freebsd-net@ added.
After google "ack storm freebsd" I find a very old SA:
https://www.freebsd.org/security/advisories/FreeBSD-SA-98%3A07.rst.asc
mentions:
+ * In the SYN-RECEIVED state, don't send an ACK unless the
+ * segment we received passes the SYN-RECEIVED ACK test.
> + * If it fails
