panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x7922c5416000, opte 0xffffffffffffffff Starting stack trace... panic(ffffffff830709a0) at panic+0x1d0 sys/kern/subr_prf.c:229 pmap_remove_pte(fffffd806d12f6d0,fffffd80080f2800,7fbc9162a000,7922c5400000,7922c549f000,0) at pmap_remove_pte pmap_do_remove(fffffd806d12f6d0,7922c539f000,7922c549f000,0) at pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1911 uvm_unmap_kill_entry_withlock(fffffd806bd8ec20,fffffd806cd800c0,0) at uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865 uvm_map_teardown(fffffd806bd8ec20) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498 uvmspace_free(fffffd806bd8ec20) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd8a28) at reaper+0x256 sys/kern/kern_exit.c:480 end trace frame: 0x0, count: 250 End of stack trace.