uvm_fault(fffffd806c8219a8,110c2af000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff8000333bb150,110c2afe9d) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff8000333bb150) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x757e56ba90e0, count: -14
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(fffffd806e864dc8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806e864db0,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806e864db0,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd8071ea0dc8,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd8071ea0dc8,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c4057c0) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff80003c4057c0) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff8000016b94f0,fffffd80605cb200,ffff800038be14f0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff8000016b94f0,fffffd80605ced00,fffffd80605cb200,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff8000016b94f0,fffffd80605cb200,ffff80003c405a48,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff800038be14f0,3,ffff80003c405bc8,e,ffff80003c405c80) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff800038be14f0,ffff80003c405d30,ffff80003c405c80) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff80003c405d30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c405d30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x14eeceb9330, count: -15