panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff83086525) at panic+0x1ba sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd807e894d70,20000000,20002000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663
uvm_fault_unwire(fffffd807e894d70,20000000,20002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623
kern_sysctl(ffff80003644d6c4,5,20000100,ffff80003644d6f8,0,37,66513cb8b17366ad) at kern_sysctl+0xbdc
sys_sysctl(ffff80002a47aa50,ffff80003644d830,ffff80003644d780) at sys_sysctl+0x422
syscall(ffff80003644d830) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe7b659a0840, count: 250
End of stack trace.