console said
login: uvm_fault(0xffffffff8190d900, 0xffff8000015c5370, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at fd_getfile+0x17: movq 0(%rax,%rdx,8),%rax
ddb{4}> trace
fd_getfile() at fd_getfile+0x17
getsock() at getsock+0x15
recvit() at recvit+0x54
sys_recvmsg() at sys_recvmsg+0x107
syscall() at syscall+0x27b
--- syscall (number 27) ---
end of kernel
end trace frame: 0x1, count: -5
0x9b45d0e55ba:
ddb{4}>
# dmesg
OpenBSD 5.9-current (GENERIC.MP) #2003: Tue May 3 13:58:33 MDT 2016
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17153232896 (16358MB)
avail mem = 16628772864 (15858MB)
