I have an Ubuntu(10.04.3 64bit server) guest VM on an ubuntu(11.04 64bit desktop) host.
The guest VM defaulted to the first network adapter as NAT. Now I want to enable bridged mode, but every other configuration besides NAT freezes the VM in startup.

Ive tried giving virtualbox SU-privileges but the problem persisted.

any tips or tricks?

Screenshot:Vbox Freeze

After a few minutes, the manager starts displaying the following: enter image description here

From here on nothing happens, the VM itself is frozen and cannot be closed, the vm managed can be closed but 2 processes stay open which prevent it from being opened again, I assume the problem lies within these processes:
VBoxSVC & VBoxXPCOMIPCD enter image description here

Log file content(last few lines of log):

00:00:00.555 VDInit finished
00:00:00.555 AIOMgr: Endpoint for file '/home/madmaze/VirtualBox VMs/redmine/redmine.vdi' (flags 000c0723) created successfully
00:00:00.566 AHCI: LUN#0: disk, PCHS=16383/16/63, total number of sectors 16777216
00:00:00.567 AHCI: LUN#0: using async I/O
00:00:00.567 AHCI ATA: LUN#0: disk, PCHS=16383/16/63, total number of sectors 16777216
00:00:00.567 AHCI ATA: LUN#1: no unit
00:00:00.567 AHCI ATA: Ctl: finished processing RESET
00:00:00.567 AHCI ATA: LUN#2: no unit
00:00:00.567 AHCI ATA: LUN#3: no unit
00:00:00.567 AHCI ATA: Ctl: finished processing RESET
00:00:00.567 AHCI ATA: Ctl: finished processing RESET
00:00:00.567 AHCI ATA: Ctl: finished processing RESET
00:00:00.567 PIIX3 ATA: LUN#0: no unit
00:00:00.567 PIIX3 ATA: LUN#1: no unit
00:00:00.567 DrvBlock: Flushes will be ignored
00:00:00.567 DrvBlock: Async flushes will be passed to the disk
00:00:00.568 PIIX3 ATA: LUN#2: CD/DVD, total number of sectors 0, passthrough disabled
00:00:00.568 PIIX3 ATA: LUN#3: no unit
00:00:00.568 PIIX3 ATA: Ctl#0: finished processing RESET
00:00:00.568 PIIX3 ATA: Ctl#1: finished processing RESET
00:00:00.579 New value of somaxconn: 1
00:00:00.579 NAT: value of BindIP has been ignored
00:00:00.579 IntNet#0: szNetwork={HostInterfaceNetworking-eth0} enmTrunkType=3 szTrunk={eth0} fFlags=0x8000 cbRecv=325632 cbSend=196608 fIgnoreConnectFailure=false
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Try opening up VirtualBox, editing the setting from NAT to bridged, saving the settings, and then closing VirtualBox completely. Then re-launch VB and see if the setting persists or is reset to NAT. That might give a clue as to if the configuration change is actually being saved or not, and might help isolate the cause. – sbtkd85 Sep 12 '11 at 16:44
I can confirm that the settings are being saved, I changed it, saved, closed, opened and checked. And settings persisted – madmaze Sep 12 '11 at 16:48
Do the Zombie processes shown in your screenshot keep running after you close VirtualBox completely? If they keep running it may be worth it to try a restart on the host. – sbtkd85 Sep 12 '11 at 17:08
yes they do, and ive tried restarts as well but no change. – madmaze Sep 12 '11 at 19:03
So i have eliminated the guest as the problem, any VM I start, only starts successfully if I have NAT selected – madmaze Sep 12 '11 at 19:16
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2 Answers

Sounds like you need to recompile your VirtualBox kernel module to me.

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I ran into the same scenario, using Ubuntu 64 Bit and many guests, all were working with no problems, until I started to do a lot of things with qemu.

I recall I inserted the kvm and kvm_intel modules.

  • I could fix it by removing them using rmmod or modprobe -r.
  • Another workaround was to unload the vboxnetflt module and reinstalling VirtualBox, but the first was the key.
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