uvm_fault(fffffd806bfa6980,721107ca5000,0,1) at uvm_fault+0x19c sys/uvm/uvm_fault.c:685
upageflttrap(ffff80003c467410,721107ca5190) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80003c467410) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x721107ca51c0, 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(fffffd806e1f70a0,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806e1f7088,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:232
rrw_enter(fffffd806e1f7088,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
VOP_LOCK(fffffd805eef4970,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
vn_lock(fffffd805eef4970,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c42d3e8) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
namei(ffff80003c42d3e8) at namei+0x7aa sys/kern/vfs_lookup.c:250
unp_connect(ffff800010fce8d0,fffffd8078ca6900,ffff80003c44d220) at unp_connect+0x27d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff800010fce8d0,fffffd807ecd6800,fffffd8078ca6900,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:609
sosend(ffff800010fce8d0,fffffd8078ca6900,ffff80003c42d668,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80003c44d220,7,ffff80003c42d7e0,8,ffff80003c42d8a0) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendmsg(ffff80003c44d220,ffff80003c42d950,ffff80003c42d8a0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
syscall(ffff80003c42d950) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c42d950) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4544008f0f0, count: -15