witness: lock_object uninitialized: 0xffff800000f33028
Starting stack trace...
witness_checkorder(ffff800000f33028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000f33028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000f33018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000f33000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline]
unveil_delete_names(ffff800000f33000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100
unveil_destroy(ffff8000211f1900) at unveil_destroy+0xad sys/kern/kern_unveil.c:191
exit1(ffff80002123c7e0,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:225
single_thread_check_locked(ffff80002123c7e0,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1958
userret(ffff80002123c7e0) at userret+0x224 single_thread_check sys/kern/kern_sig.c:1999 [inline]
userret(ffff80002123c7e0) at userret+0x224 sys/kern/kern_sig.c:1946
intr_user_exit() at intr_user_exit+0x3c
end of kernel
end trace frame: 0x7f7fffffade0, count: 249
End of stack trace.
Stopped at      db_enter+0x18:  addq    $0x8,%rsp