uvm_fault(fffffd805ebd9218,a0000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627
kpageflttrap(ffff80003abfa430,a0c60) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283
kerntrap(ffff80003abfa430) at kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
copyout() at copyout+0x64
syscall(ffff80003abfa870) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003abfa870) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xbf11844d0, count: -17
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(fffffd806ae8cda0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806ae8cd88,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806ae8cd88,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd805f427878,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd805f427878,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff800039d6d660) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff800039d6d660) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff8000016f2108,fffffd806d295000,ffff80002a2802b0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff8000016f2108,fffffd806b78f300,fffffd806d295000,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff8000016f2108,fffffd806d295000,ffff800039d6d8e8,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2802b0,3,ffff800039d6da68,e,ffff800039d6db20) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff80002a2802b0,ffff800039d6dbd0,ffff800039d6db20) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff800039d6dbd0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800039d6dbd0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xaebb4119b40, count: -15