uvm_fault(fffffd806f613008,110c284000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627
upageflttrap(ffff80003c425790,110c2848b2) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c425790) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:632
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x798ea284fad0, count: -13
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(fffffd8072cf42f0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd8072cf42d8,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd8072cf42d8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd805e732010,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd805e732010,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80002a34a9d0) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff80002a34a9d0) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff800001607230,fffffd806f3bd200,ffff80003c40c028) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff800001607230,fffffd806f3dac00,fffffd806f3bd200,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff800001607230,fffffd806f3bd200,ffff80002a34ac58,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80003c40c028,3,ffff80002a34add8,e,ffff80002a34ae90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff80003c40c028,ffff80002a34af40,ffff80002a34ae90) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff80002a34af40) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34af40) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd47e5e78fa0, count: -15