I think "vm init" should give a warning if the sysctl kern.init_shutdown_timeout is set to the default value of 120 seconds, or if rcshutdown_timeout is defined and too short.
CBSD offers to reassign these settings during the initialization process (as well as rcshutdown_timeout): https://github.com/cbsd/cbsd/issues/374 I
I think the default kern.init_shutdown_timeout=120s is too short for the graceful shutdown of all VMs, but this shortage is very poorly documented.
Or perhaps it's worth mentioning in the pkg-message.
(In reply to Victor Sudakov from comment #0)
Remember: bugs.freebsd.org is a task tracker for the FreeBSD project. vm-bhyve is a third-party software that is not part of FreeBSD and not supported by FreeBSD developers. Please use the appropriate resource for vm-bhyve feature request:
https://github.com/churchers/vm-bhyve/issues. This is not a FreeBSD bug.
(In reply to purk from comment #1)
Reported upstream: https://github.com/churchers/vm-bhyve/issues/303
> This is not a FreeBSD bug.
A pkg-message could be useful IMHO.