[issue1580] Panic (Fatal trap 12: page fault while in kernel mode) while playing with pf and netif names

["Rumko \(via DragonFly issue tracker\)" <sinknull@xxxxxxxxxxxxxxxxxxxxx>]

Rumko <rumcic@gmail.com> added the comment:

A bit more info...
it seems before I wasn't running a verbose boot 'cause with latest master I get
kernel: pfr_unroute_kentry: delete failed.
last message repeated 7 times
kernel: Non-unique normal route, mask not entered
and after that a panic ... so it seems it can't delete a few entries ...
rn_delete called from pfr_unroute_kentry() in sys/net/pf/pf_table.c returns null?
after that I guess that the same entries that couldn't be deleted are added
through rn_addroute() and rn_addroute() at that time spits out "Non-unique
normal route, mask not entered" ... then pf gets confused and panics? have not
researched further than that yet

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