uvm_fault(ffff800001c8a7c0,724fc14f000,0,1) at uvm_fault+0x338 sys/uvm/uvm_fault.c:650
upageflttrap(ffff80003bc78a50,724fc14f000) at upageflttrap+0xe0 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003bc78a50) at usertrap+0x4f9 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x79ea52b62630, count: -8