panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x729167816000, opte 0xfffffffffffffffd Starting stack trace... panic(ffffffff828c423b) at panic+0x16f sys/kern/subr_prf.c:229 pmap_remove_ptes(fffffd806835e4d8,fffffd800782ab00,7fb948b3c000,729167800000,7291678dc000,0,635197ed28ce9078) at pmap_remove_ptes+0x34e pmap_do_remove(fffffd806835e4d8,7291677dc000,7291678dc000,0) at pmap_do_remove+0x426 sys/arch/amd64/amd64/pmap.c:1896 uvm_unmap_kill_entry_withlock(fffffd80683e28f0,fffffd806b8097f8,0) at uvm_unmap_kill_entry_withlock+0x1b0 sys/uvm/uvm_map.c:1928 uvm_map_teardown(fffffd80683e28f0) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd80683e28f0) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565 uvmspace_free(fffffd80683e28f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497 reaper(ffff80002a145d50) at reaper+0x19a sys/kern/kern_exit.c:463 end trace frame: 0x0, count: 250 End of stack trace.