On Friday 24 April 2009, NoOp wrote:
> On 04/23/2009 11:43 AM, dick hoogendijk wrote:
> > On Wed, 22 Apr 2009 22:05:23 +0200
> >
> > Freek de Kruijf <[email protected]> wrote:
> >> The solution to the above problem is indeed a change in the hardware
> >> emulation from PCnet-FAST III to Intel PRO/1000 MT.
> >
> > Any reasons why always the desktop variant (Intel PRO/1000 MT Desktop)
> > is suggested and never the server one (Intel PRO/1000 T Server)
>
> Any reason why there are multiple posts indicating that this actually
> fixes a problem?
>
> My onboard nic on this machine is:
> *-network
>                 description: Ethernet interface
>                 product: 82562EZ 10/100 Ethernet Controller
>                 vendor: Intel Corporation
>
> and if I try anything other than the PCnet-FAST III (or II) nothing works:
>
> $ uname -r
> 2.6.24-24-generic
> [Linux Unbutu 8.04.2]
> Guest = Win2KPro Win2KServer
> Vbox = 2..2.0
>
>  So those suggesting Intel PRO/1000 might want to: 1) provide a
> reference ticket/bug report showing how/why that works for them, and 2)
> provide some additional information on their system hardware + host &
> guest.

There is a known problem with the PCnet emulation in VirtualBox 2.2.0
which can cause a VM freeze under certain conditions. The reason for this
bug is not directly related to the PCnet device code but an API change
in the VMM which lead to this problem. The E1000 device code was already
properly adapted, the adaption of the PCnet code does not work. The problem
is fixed in the SVN and the fix will be included in the next maintenance
release but for the time being, changing the network emulation from PCnet
to E1000 should do the trick for most guests.

As for the specific E1000 device type: We provide three E1000 emulations:

  MT Desktop (82540OEM)
  T Server (82543GC)
  MT Server (82545EM)

The first type should be recognized by Windows Vista. The second device
should be recognized by Windows XP. The third model was introduced to
increase the compatibility with VMware OVF appliances. It should not
matter for Linux guests which device you choose, just use the first
device if you are unsure.

And no, the device type of the guest NIC has _nothing_ to do with the
device type of the host NIC!

Kind regards,

Frank
-- 
Dr.-Ing. Frank Mehnert    Sun Microsystems    http://www.sun.com/

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