panic: uvm_fault_unwire_locked: address not in map Starting stack trace... panic(ffffffff8308cbe1) at panic+0x1ba sys/kern/subr_prf.c:229 uvm_fault_unwire_locked(fffffd806c3636d0,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806c3636d0,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff800037682f44,5,20000100,ffff800037682f78,0,37,f0f27054f506a10b) at kern_sysctl+0xc4c sys_sysctl(ffff80002bfdf978,ffff8000376830b0,ffff800037683000) at sys_sysctl+0x422 syscall(ffff8000376830b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb0a23364500, count: 250 End of stack trace.