panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff83089359) at panic+0x1ba sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd806c3899b0,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663
uvm_fault_unwire(fffffd806c3899b0,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623
kern_sysctl(ffff800037647704,5,20000100,ffff800037647738,0,37,4bd29dd61f104f71) at kern_sysctl+0xc4c
sys_sysctl(ffff80002a4d11d8,ffff800037647870,ffff8000376477c0) at sys_sysctl+0x425
syscall(ffff800037647870) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xbf73e468680, count: 250
End of stack trace.