Kernelpanic (?) when connecting LAN cable

[Lirezh]

I use the supplied linux image
<5>Linux version 3.4.67+ (root@debian) (gcc version 4.7.1 (Debian 4.7.1-7) ) #4 PREEMPT Sat Dec 14 15:12:10 EET 2013

It boots up (takes around one minute!).
I connect LAN and then it will crash within 1 minute.

I was able to even connect to the internet during that time but then it just stalls.
No serial output anymore no reaction, the two lights of the LAN socket switch off.

I was hoping to use the LIME for several hardware projects but I rely on stable performance.
My first impression of the LIME is that of an alpha prototype which is not stable at all.

Did I do something wrong, am I right ?