uvm_fault(fffffd806b9dbd70,a998d14d000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700
upageflttrap(ffff80003c457510,a998d14d000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c457510) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7773024148f0, count: -12
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(fffffd806e177118,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806e177100,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806e177100,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd8069aa0d98,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
vn_lock(fffffd8069aa0d98,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003a837630) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff80003a837630) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff8000014e31f0,fffffd800da4f300,ffff800035019a20) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff8000014e31f0,fffffd8069afbb00,fffffd800da4f300,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff8000014e31f0,fffffd800da4f300,ffff80003a8378b8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff800035019a20,c,ffff80003a837a38,8,ffff80003a837af0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff800035019a20,ffff80003a837ba0,ffff80003a837af0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff80003a837ba0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003a837ba0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x890db617fd0, count: -15