uvm_fault(fffff8000b1f7b70,a2af277d000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff800035ba43b0,a2af277d000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:194
usertrap(ffff800035ba43b0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:648
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x72844bfcf510, count: -11
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(fffff8006e3e5670,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffff8006e3e5658,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffff8006e3e5658,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffff8005cd95dd8,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffff8005cd95dd8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:576
vfs_lookup(ffff80003c422730) at vfs_lookup+0x12b sys/kern/vfs_lookup.c:431
namei(ffff80003c422730) at namei+0x7c5 sys/kern/vfs_lookup.c:250
unp_connect(ffff80000166e918,fffff8006fd46400,ffff800045fe2558) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff80000166e918,fffff8006f965700,fffff8006fd46400,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff80000166e918,fffff8006fd46400,ffff80003c4229b8,0,0,c) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff800045fe2558,3,ffff80003c422b38,c,ffff80003c422bf0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff800045fe2558,ffff80003c422ca0,ffff80003c422bf0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff80003c422ca0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c422ca0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xaee606d7640, count: -15