[Milhouse]

I had hoped this would fix the IR-power on issue as well. Unfortunately it doesn't.

You said your restart problem started with #0420, and provided this crashlog:

I have a Zotac Zbox CI520, which was running the #0419 build. After I installed the #0503 something is f'ed up with the power and or IR-settings. After a shutdown it won't power up with the remote, I have to do it manually.

Rolling back to 419 solves it, so this broke with some build in between.

Edit: Build #0420 is the last one that worked, it's still broken in #0509

@Milhouse:
Just to be sure I created a log with the latest (0510): http://sprunge.us/ABZb
and noticed on shutdown a crashlog was created: http://sprunge.us/JRBe

So something is causing the system to crash at shutdown ...

There's nothing obvious in build #0420 that would appear to be responsible for changing the restart behaviour (no new kernel, no new drivers etc.). The crash in your crashlog appears to be related to libnfs, but libnfs didn't change in #0420 so I'm not sure why it would start to become an issue (there is a change in #0420 that cleans up some file handling code but it looks fairly benign).

Are you sure this restart problem began with #0420, and that it wasn't just a random/unrelated crash that made you think it starts with #0420, when in fact it's a later build that has the real problem?