Tvheadend

Hello @ the community,

i am having a problem with the WebGUI not loading the page. I do not get even an error message browser is just saying "Waiting for 192.168.1.123" and then I get after some minutes a timeout.
This happens after I activate one of my USB TV Cards (Terratec Cinergy DVB-S2 USB HD & USB BOX). Does not matter which of them I activate, tvheadend webgui stopps working immediately.

My config is the following:

Proxmox Node KVM Virtualization -> Debian Jessie Kernel 3.16.0-4-amd64
The TV Cards are passed though the node to the VM and are recognized by debian:

root@tv:~# dmesg | grep -i dvb
[    1.782534] dvb-usb: found a 'Terratec Cinergy S2 USB HD Rev.2' in warm state.
[    1.784629] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[    1.784960] DVB: registering new adapter (Terratec Cinergy S2 USB HD Rev.2)
[    1.790847] dvb-usb: MAC address: ff:ff:ff:ff:ff:ff
[    2.136886] usb 2-1: DVB: registering adapter 0 frontend 0 (Montage Technology DS3000)...
[    2.139607] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.7/usb2/2-1/input/input6
[    2.139634] dvb-usb: schedule remote query interval to 150 msecs.
[    2.139637] dvb-usb: Terratec Cinergy S2 USB HD Rev.2 successfully initialized and connected.
[    2.877997] Modules linked in: nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc ts2020(O) ds3000(O) dvb_usb_dw2102(O) dvb_usb dvb_core rc_core joydev hid_generic ppdev pcspkr evdev serio_raw shpchp virtio_balloon usbhid hid ttm parport_pc drm_kms_helper parport processor drm thermal_sys i2c_piix4 i2c_core button autofs4 ext4 crc16 mbcache jbd2 sg sr_mod cdrom ata_generic virtio_net virtio_blk psmouse ata_piix floppy ehci_pci libata uhci_hcd ehci_hcd scsi_mod virtio_pci virtio_ring virtio usbcore usb_common
[    2.880867] CPU: 1 PID: 701 Comm: kdvb-ad-0-fe-0 Tainted: G           O  3.16.0-4-amd64 #1 Debian 3.16.36-1+deb8u1
[    2.880867]  [<ffffffffa03153d0>] ? dvb_usb_fe_wakeup+0x50/0x60 [dvb_usb]
[    2.880867]  [<ffffffffa02f79e7>] ? dvb_frontend_init+0x27/0xb0 [dvb_core]
[    2.880867]  [<ffffffffa02f8fa9>] ? dvb_frontend_thread+0x79/0x730 [dvb_core]
[    2.880867]  [<ffffffffa02f8f30>] ? dvb_frontend_should_wakeup.isra.2+0x70/0x70 [dvb_core]

Immediately when I disconnect the USB Card form the VM, the WebGUI of TVHeadend works without a problem.

Does anyone has an idea what to do?

This is the syslog when restarting tvheadend:

Sep 15 17:04:21 tv tvheadend[774]: Stopping Tvheadend: tvheadend.
Sep 15 17:04:21 tv tvheadend[779]: Starting Tvheadend: tvheadend.
Sep 15 17:04:21 tv tvheadend[784]: main: Log started
Sep 15 17:04:21 tv tvheadend[784]: config: loaded
Sep 15 17:04:21 tv tvheadend[784]: scanfile: DVB-T - loaded 43 regions with 1106 networks
Sep 15 17:04:21 tv tvheadend[784]: scanfile: DVB-S - loaded 1 regions with 112 networks
Sep 15 17:04:21 tv tvheadend[784]: scanfile: DVB-C - loaded 17 regions with 56 networks
Sep 15 17:04:21 tv tvheadend[784]: scanfile: ATSC - loaded 2 regions with 14 networks