uvm_fault(fffffd8065f80018,f0e57138000,0,1) at uvm_fault+0x181 sys/uvm/uvm_fault.c:623
upageflttrap(ffff80002e494970,f0e57138000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181
usertrap(ffff80002e494970) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffd5d20, count: -8