uvm_fault(fffffd8069dd9b90,488aec19000,0,2) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:700
upageflttrap(ffff800034807c50,488aec19000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff800034807c50) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x79df698e09d0, 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(fffffd806b9186a8,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806b918690,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806b918690,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd80659af138,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
vn_lock(fffffd80659af138,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c46aeb8) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
namei(ffff80003c46aeb8) at namei+0x7aa sys/kern/vfs_lookup.c:250
unp_connect(ffff8000014fc630,fffffd806d2c4f00,ffff8000348087d8) at unp_connect+0x27d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff8000014fc630,fffffd807eccf900,fffffd806d2c4f00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:609
sosend(ffff8000014fc630,fffffd806d2c4f00,ffff80003c46b138,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff8000348087d8,3,ffff80003c46b2b0,8,ffff80003c46b370) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendmsg(ffff8000348087d8,ffff80003c46b420,ffff80003c46b370) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597
syscall(ffff80003c46b420) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c46b420) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x42b7c6e7ab0, count: -15