uvm_fault(fffffd806052f3f8,3a1a27dc000,0,1) at uvm_fault+0x198 sys/uvm/uvm_fault.c:635
upageflttrap(ffff80003c3e6860,3a1a27dc268) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c3e6860) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x76fd8fe0fd20, count: -13
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(fffffd807ca19d80,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd807ca19d68,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd807ca19d68,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd806c366380,2001) at VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
vn_lock(fffffd806c366380,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:576
vfs_lookup(ffff800039fd4370) at vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
namei(ffff800039fd4370) at namei+0x7ca sys/kern/vfs_lookup.c:250
unp_connect(ffff80000162bad0,fffffd800f9a0900,ffff8000fffe2558) at unp_connect+0x29d sys/kern/uipc_usrreq.c:872
uipc_dgram_send(ffff80000162bad0,fffffd806c526900,fffffd800f9a0900,0) at uipc_dgram_send+0x163 sys/kern/uipc_usrreq.c:609
sosend(ffff80000162bad0,fffffd800f9a0900,ffff800039fd45f8,0,0,c06) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff8000fffe2558,3,ffff800039fd4778,c06,ffff800039fd4830) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendmsg(ffff8000fffe2558,ffff800039fd48e0,ffff800039fd4830) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:603
syscall(ffff800039fd48e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800039fd48e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x16b2c2ef8d0, count: -15