uvm_fault(fffffa006c5647c0,f0709c3d000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff800036797ff0,f0709c3d000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff800036797ff0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7ce6e558f3c0, 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(fffffa0067554d80,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffa0067554d68,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffa0067554d68,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffa005f802a40,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffa005f802a40,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:576
vfs_lookup(ffff800031b8c530) at vfs_lookup+0x12b sys/kern/vfs_lookup.c:431
namei(ffff800031b8c530) at namei+0x7c5 sys/kern/vfs_lookup.c:250
unp_connect(ffff800010fd2338,fffffa006b9f6000,ffff80003478f4e0) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff800010fd2338,fffffa006d424500,fffffa006b9f6000,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff800010fd2338,fffffa006b9f6000,ffff800031b8c7b8,0,0,0) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80003478f4e0,3,ffff800031b8c938,0,ffff800031b8c9f0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff80003478f4e0,ffff800031b8caa0,ffff800031b8c9f0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff800031b8caa0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800031b8caa0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5fe2774b250, count: -15