uvm_fault(fffffd806c2dddd8,20000000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600
kpageflttrap(ffff80002c773cc0,20000128) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002c773cc0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
copyout() at copyout+0x62
kern_sysctl(ffff80002c774014,5,20000100,ffff80002c774048,0,37,a63b576c7ad2af7f) at kern_sysctl+0x147 sys/kern/kern_sysctl.c:659
sys_sysctl(ffff80002a026018,ffff80002c774180,ffff80002c7740d0) at sys_sysctl+0x2f6
syscall(ffff80002c774180) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002c774180) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3127da80c70, count: -24
ddb{0}> machine ddbcpu 1
Stopped at      savectx+0xae:   movl    $0,%gs:0x680
savectx() at savectx+0xae
end of kernel
end trace frame: 0x312ecad8cf0, count: 14
ddb{1}> trace
savectx() at savectx+0xae
end of kernel
end trace frame: 0x312ecad8cf0, count: -1