uvm_fault(fffffd800b0275b8,a871124a000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700
upageflttrap(ffff80002a335340,a871124a000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80002a335340) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x6fc4f41ecec0, 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(fffffd806e13b240,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806e13b228,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806e13b228,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd805de86498,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
vn_lock(fffffd805de86498,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_lookup(ffff80003c4a8f70) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff80003c4a8f70) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff800010fc7b60,fffffd806b076b00,ffff80003c0374f8) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff800010fc7b60,fffffd806b076700,fffffd806b076b00,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff800010fc7b60,fffffd806b076b00,ffff80003c4a91f8,0,0,8) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80003c0374f8,3,ffff80003c4a9378,8,ffff80003c4a9430) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782
sys_sendmsg(ffff80003c0374f8,ffff80003c4a94e0,ffff80003c4a9430) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:600
syscall(ffff80003c4a94e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4a94e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c2eac9f350, count: -15