uvm_fault(fffffd80089ae730,ca8ce010000,0,2) at uvm_fault+0x181 sys/uvm/uvm_fault.c:623
upageflttrap(ffff800029584f90,ca8ce010000) at upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186
usertrap(ffff800029584f90) at usertrap+0x204 sys/arch/amd64/amd64/trap.c:438
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0xca8b8dbbda0, count: -8