Created attachment 213407 [details]
System panicked after "service jail stop" with a test jail, that uses
Created attachment 213408 [details]
jail.conf snippet for this jail
Created attachment 213409 [details]
rc.conf snip for interface config within jail
Created attachment 213410 [details]
Created attachment 213411 [details]
kgdb stackdump screenshot with color
System panicked when "service jail stop" of jail using an epair interface.
The panic seems similar to https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234985
but happens in a different location (but possibly has the same cause).
This is vanilla FreeBSD 12.1-RELEASE-p3 GENERIC amd64 on an epyc based
system with hw.ncpu=32 and hw.physmem=274692632576