panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff83088b34) at panic+0x1ba sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd806bf17418,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663
uvm_fault_unwire(fffffd806bf17418,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623
kern_sysctl(ffff80002a537474,5,20000100,ffff80002a5374a8,0,fffffffffffffe59,f0a99ecdd52811d8) at kern_sysctl+0xbdc
sys_sysctl(ffff80002a54f200,ffff80002a5375e0,ffff80002a537530) at sys_sysctl+0x422
syscall(ffff80002a5375e0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd546e9dd460, count: 250
End of stack trace.