uvm_fault(fffffd806ca61d88,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80002a32e220,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a32e220) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x70a8a5534040, count: -18
ddb{0}> machine ddbcpu 1
Stopped at      alltraps_kern_meltdown+0xb8:    movl    %ebx,%gs:0x688
alltraps_kern_meltdown() at alltraps_kern_meltdown+0xb8
_copyin() at _copyin+0x5b
syscall(ffff80002a334d40) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a334d40) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xddaf6e919a0, count: 11
ddb{1}> trace
alltraps_kern_meltdown() at alltraps_kern_meltdown+0xb8
_copyin() at _copyin+0x5b
syscall(ffff80002a334d40) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a334d40) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xddaf6e919a0, count: -4