panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x53d84060000, opte 0x70003efff
Starting stack trace...
panic(ffffffff830680d3) at panic+0x1d0 sys/kern/subr_prf.c:229
pmap_remove_pte(fffffd806be3a4e8,fffffd8008a33660,7f829ec201b8,53d84037000,53d84200000,0) at pmap_remove_pte
pmap_do_remove(fffffd806be3a4e8,53d84037000,53d84236000,0) at pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1909
uvm_unmap_kill_entry_withlock(fffffd806ca2c018,fffffd8055edde70,0) at uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1883
uvm_map_teardown(fffffd806ca2c018) at uvm_map_teardown+0x267 sys/uvm/uvm_map.c:2520
uvmspace_free(fffffd806ca2c018) at uvmspace_free+0xe8 sys/uvm/uvm_map.c:3447
reaper(ffff800029fd96d0) at reaper+0x25b sys/kern/kern_exit.c:480
end trace frame: 0x0, count: 250
End of stack trace.