uvm_fault(fffffd806c6ed1d0,13cbf60d000,0,1) at uvm_fault+0x1ed sys/uvm/uvm_fault.c:622
upageflttrap(ffff8000371d9bd0,13cbf60d000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000371d9bd0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x71365c9af1a0, 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:437
witness_checkorder(fffffd807b7bd700,9,0) at witness_checkorder+0x1047
rw_enter(fffffd807b7bd6f0,1) at rw_enter+0x122
rrw_enter(fffffd807b7bd6f0,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd807c2e7a30,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
vn_lock(fffffd807c2e7a30,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564
vfs_lookup(ffff800030f8c058) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
namei(ffff800030f8c058) at namei+0x7aa sys/kern/vfs_lookup.c:250
unp_connect(ffff800001288a70,fffffd806bdc0700,ffff80002a03e2a8) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868
uipc_dgram_send(ffff800001288a70,fffffd806cd36900,fffffd806bdc0700,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607
sosend(ffff800001288a70,fffffd806bdc0700,ffff800030f8c2e8,0,0,0) at sosend+0xa40
sendit(ffff80002a03e2a8,3,ffff800030f8c460,0,ffff800030f8c520) at sendit+0x721 sys/kern/uipc_syscalls.c:786
sys_sendmsg(ffff80002a03e2a8,ffff800030f8c5d0,ffff800030f8c520) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604
syscall(ffff800030f8c5d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff800030f8c5d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdcd749e5960, count: -15