panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff83085b65) at panic+0x1ba sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd806e792568,20000000,20001000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663
uvm_fault_unwire(fffffd806e792568,20000000,20001000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623
kern_sysctl(ffff80002a5133d4,2,20000100,ffff80002a513408,0,27,90f2c9281b7fe59e) at kern_sysctl+0xbdc
sys_sysctl(ffff80002a576550,ffff80002a513540,ffff80002a513490) at sys_sysctl+0x422
syscall(ffff80002a513540) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x39982accb50, count: 250
End of stack trace.