KP on Ubuntu 14.04 with std 3.13.0-145-generic

Everything builds just fine, but:

```
root@peter:~/linux# make load
tools/load.pl
12:22:21 Syncing...
12:22:21 Loading: build-3.13.0-145-generic/driver/dtracedrv.ko
12:22:23 Preparing symbols...
12:22:23 Probes available:
```

ends with kernel panic.