[vbox-dev] Network restoration after snapshot
klaus.espenlaub at oracle.com
Tue May 22 07:21:05 PDT 2012
On 21.05.2012 21:07, Jaikumar G wrote:
> Hi Aleksey,
> On Mon, May 21, 2012 at 11:35 AM, Aleksey Ilyushin
> <aleksey.ilyushin at oracle.com <mailto:aleksey.ilyushin at oracle.com>> wrote:
> This behavior is intentional. Machine's state may be saved in one
> network environment, and restored in completely different one (VM on
> laptop that brought home from office, for example). VirtualBox
> forces the link down and back up after a timeout.
> I understand the need to bring the machine networking down and up.
> Is the timeout configurable ? Seems like it slows down the restoration
> process if the restoring is happening on the same machine.
Please define what you mean by "slows down the restoration process" -
your log clearly says that the VM was executing again after a bit more
than a second, which is expected performance. The VM will re-establish
its network connection, and so far the 5 second delay wasn't reported as
Anyway, it's a hardcoded delay which can't be changed by the user.
> On May 21, 2012, at 9:52 PM, Jaikumar G wrote:
> > Folks,
> > When trying to restore a snaphot (of a paused machine) the
> network takes close to 5 secs to come back up.
> > VBox Log snippet is below. I tried switching the adapter that I
> was using but that I didn't help either.
> > Any pointers ?
> > 00:00:01.343 HGCM: restoring [VBoxSharedFolders]
> > 00:00:01.343 HGCM: restoring [VBoxGuestControlSvc]
> > 00:00:01.343 HGCM: restoring [VBoxGuestPropSvc]
> > 00:00:01.343 HGCM: restoring [VBoxSharedClipboard]
> > 00:00:01.354 Changing the VM state from 'LOADING' to 'SUSPENDED'.
> > 00:00:01.354 Changing the VM state from 'SUSPENDED' to 'RESUMING'.
> > 00:00:01.354 Changing the VM state from 'RESUMING' to 'RUNNING'.
> > 00:00:01.362 Display::handleDisplayResize(): uScreenId = 0,
> pvVRAM=00002abb5917a000 w=1024 h=768 bpp=16 cbLine=0x800, flags=0x1
> > 00:00:01.612 VUSB: attached 'HidMouse' to port 1
> > 00:00:06.364 PCNet#0: The link is back up again after the restore.
> > 00:00:07.473 NAT: DHCP offered IP address 10.0.2.15
> > Thanks
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