[ kvm-Bugs-2545471 ] virtio_net not working

[ kvm-Bugs-2545471 ] virtio_net not working

[SourceForge.net]

Bugs item #2545471, was opened at 2009-01-29 14:32
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: qemu
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: FdB (fadb)
Assigned to: Nobody/Anonymous (nobody)
Summary: virtio_net not working

Initial Comment:
After many posts elsewhere - and no single reaction - I try this forum.

I use SuSE 11.0 and 11.1 with the latest kernel (.28.2) and before in both host and the guest. I use the KVM83 package because using Qemu svn produces kvm related errors.

After installing an image using '-net nic,model=e1000....' I changed the previous model to 'virtio'. After a restart, I do get a IP address assigned but also partial csum errors upon initialization.
After I logged in, ifconfig shows fine data, but I am unable to get any IP traffic with anything but itself.

Can anybody shed some light on it? Not being able to use virtio_net is a real show stopper for me.

Thanks, frans.


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You can respond by visiting: 
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[ kvm-Bugs-2545471 ] virtio_net not working

[SourceForge.net]

Bugs item #2545471, was opened at 2009-01-29 15:32
Message generated for change (Comment added) made by technologov
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2545471&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: qemu
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: FdB (fadb)
Assigned to: Nobody/Anonymous (nobody)
Summary: virtio_net not working

Initial Comment:
After many posts elsewhere - and no single reaction - I try this forum.

I use SuSE 11.0 and 11.1 with the latest kernel (.28.2) and before in both host and the guest. I use the KVM83 package because using Qemu svn produces kvm related errors.

After installing an image using '-net nic,model=e1000....' I changed the previous model to 'virtio'. After a restart, I do get a IP address assigned but also partial csum errors upon initialization.
After I logged in, ifconfig shows fine data, but I am unable to get any IP traffic with anything but itself.

Can anybody shed some light on it? Not being able to use virtio_net is a real show stopper for me.

Thanks, frans.


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>Comment By: Technologov (technologov)
Date: 2009-02-11 12:39

Message:
openSUSE 11.0 guest works fine with VirtIO network. Using standard SUSE
kernel from the box. (2.6.25.5-1.1-pae i686)

Running on KVM-83.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2545471&group_id=180599

[ kvm-Bugs-2545471 ] virtio_net not working

[SourceForge.net]

Bugs item #2545471, was opened at 2009-01-29 14:32
Message generated for change (Comment added) made by fadb
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2545471&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: qemu
Group: None
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: FdB (fadb)
Assigned to: Nobody/Anonymous (nobody)
Summary: virtio_net not working

Initial Comment:
After many posts elsewhere - and no single reaction - I try this forum.

I use SuSE 11.0 and 11.1 with the latest kernel (.28.2) and before in both host and the guest. I use the KVM83 package because using Qemu svn produces kvm related errors.

After installing an image using '-net nic,model=e1000....' I changed the previous model to 'virtio'. After a restart, I do get a IP address assigned but also partial csum errors upon initialization.
After I logged in, ifconfig shows fine data, but I am unable to get any IP traffic with anything but itself.

Can anybody shed some light on it? Not being able to use virtio_net is a real show stopper for me.

Thanks, frans.


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>Comment By: FdB (fadb)
Date: 2009-02-11 20:45

Message:
It did not worked under my x86_64 (Athlon64 2x) system. However, using
linux-2.6.29-rc1 (on the host) and later solved the problem.

I do however now see almost no gain in throughput using virtio_net or the
e1000 emulation. The difference is around 1 MB/s in the plus for the first.
So, still not really usable.

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Comment By: Technologov (technologov)
Date: 2009-02-11 11:39

Message:
openSUSE 11.0 guest works fine with VirtIO network. Using standard SUSE
kernel from the box. (2.6.25.5-1.1-pae i686)

Running on KVM-83.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2545471&group_id=180599