panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x7395d5816000, opte 0xffffffffffffffff Starting stack trace... panic(ffffffff830737b5) at panic+0x1d0 sys/kern/subr_prf.c:229 pmap_remove_pte(fffffd806be995e0,fffffd8007e630c0,7fb9caeac000,7395d5800000,7395d586a000,0) at pmap_remove_pte pmap_do_remove(fffffd806be995e0,7395d576a000,7395d586a000,0) at pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1911 uvm_unmap_kill_entry_withlock(fffffd806ce8ca68,fffffd806ceaad58,0) at uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865 uvm_map_teardown(fffffd806ce8ca68) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498 uvmspace_free(fffffd806ce8ca68) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd9448) at reaper+0x256 sys/kern/kern_exit.c:480 end trace frame: 0x0, count: 250 End of stack trace.