uvm_fault(fffffd8069f43010,5b84a342000,0,1) at uvm_fault+0x181 sys/uvm/uvm_fault.c:623
upageflttrap(ffff80002e4bd0e0,5b84a342000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
usertrap(ffff80002e4bd0e0) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:404
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffe7b80, count: -8