Repeatable Kernel Crash on LXC Creation with Proxmox 4.1 beta 1 (4.1 Kernel)

Hi,

i installed Proxmox 4 beta 1 on my Server a while ago. It works great with KVM and with LXC Containers. A few days ago i updated and got a new PVE Kernel 4.1. Now i have trouble creating LXC Containers. If i create a new Container for example Ubuntu 15.04, Proxmox starts to create the image and after a few seconds the machine locks up. After a reboot and retry i got another lookup, this is endless repeatable. On the local server console i can see an endless stream of kernel crash/panic messages, so fast i am unable to read it. The LXC storage is on a RAID-Z ZFS Volume.

I use this server heavly with several windows vm's for development purpose. I have never had any issues with KVM. The Proxmox Web Interface is crashing sometimes, i have to restart to the proxy to get it running again.

Here some specs of the machine:

# pveversion
pve-manager/4.0-26/5d4a615b (running kernel: 4.1.3-1-pve)

Intel(R) Xeon(R) CPU E3-1245 V2 @ 3.40GHz
32 GB of ECC Ram
8 TB Disk ZFS RAID Z with Cache and LOG SSD
2 TB Disk ZFS Stripped Mirror with Cache and LOG SSD

Anyone having the same issue?