witness: lock_object uninitialized: 0xffff800000ef5028
Starting stack trace...
witness_checkorder(ffff800000ef5028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000ef5028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777
rw_enter_write(ffff800000ef5018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef5000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef5000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff80002e461d78) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000212753a8,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220
single_thread_check_locked(ffff8000212753a8,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015
userret(ffff8000212753a8) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline]
userret(ffff8000212753a8) at userret+0x7c sys/kern/kern_sig.c:1970
intr_user_exit() at intr_user_exit+0x3c
end of kernel
end trace frame: 0x75bcd9f3c570, count: 249
End of stack trace.
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp