uvm_fault(fffffd806c8a85d0,e57be295000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff80003a3d07b0,e57be295000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003a3d07b0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x72cc1953b240, 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(fffffd800f890d80,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd800f890d68,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd800f890d68,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd8061b84878,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd8061b84878,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c427010) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff80003c427010) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff800001618cb0,fffffd806bc49e00,ffff80002a250fa8) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff800001618cb0,fffffd806bc71e00,fffffd806bc49e00,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff800001618cb0,fffffd806bc49e00,ffff80003c427298,0,0,e) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a250fa8,4,ffff80003c427418,e,ffff80003c4274d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff80002a250fa8,ffff80003c427580,ffff80003c4274d0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff80003c427580) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c427580) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x14c2b44d5b0, count: -15