Default Nexus 5 crashes (stock rom with France kernel)

Hi

I have a Nexus 5 and I'm using the stock Google Rom with Franco Kernel.

I have left every kernel option at default and my device is not undervolted. Still it dies once a week over night or under heavy load.

It just rebooted during an Antutu Benchmark and I have managed to save last_kmsg, a logcat and dmesg. Can someone please take a short look at the files?

By the way: I noticed that I can absolutely not undervolt my Nexus 5 even -25mv without it crashing after a few hours, so I think even stock voltage is not enough. It would be nice if someone could confirm that.
Attached Files
File Type: txt dmesg.txt - [Click for QR Code] (69.6 KB, 9 views)
File Type: txt logcat.txt - [Click for QR Code] (318.6 KB, 6 views)
File Type: txt last_kmsg.txt - [Click for QR Code] (88.0 KB, 6 views)