uvm_fault(ffff800001c96d78,170e13a5000,0,1) at uvm_fault+0x338 sys/uvm/uvm_fault.c:650
upageflttrap(ffff800039f28400,170e13a5000) at upageflttrap+0xe0 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff800039f28400) at usertrap+0x4f9 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7ab473d7c8f0, count: -8