@ReillyBrogan
So unfortunately I have not been able to produce a log. But what I have done is reinstalled 4.4, switched to the lts-kernel and then done the system update. This turns out the same, which leads we to think that the issue is not a kernel issue. At least not solely. And as long as I dont update, the system works fine, which suggest that its not just a hardware issue either.
I did see some chatter in the arch forums about the 6.4.11 kernel and even an issue related to the SD card reader but for me following the steps there to blacklist the device did not help either and in that case using the lts kernel should also have helped. I'll see if it is at all possible to get a log of what is happening.