Could the fix be backported to Lucid?
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https://bugs.launchpad.net/bugs/602060
Title:
Virtio network stops working after dynamic virtio disk attachment
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I made a test with a vanilla 2.6.32.25 ad same issue.
Works fine with a vanilla 2.6.36. Seems to be a 2.6.32.23 kernel issue
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
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Thanks for testing that. Would you mind also testing the newest
up-to-date backported kernel (see
https://launchpad.net/~kernel-ppa/+archive/ppa)?
Were those kernels on the host or in guest?
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Virtio network stops working after dynamic virtio disk attachment
I'm talking about guest kernel.
With the backport the add is done without crashing network.
Remains an issue on the host for networking but might be pebkac
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug
That's what Id assumed as it's all that makes sense - thanks!
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
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Server Team, which is subscribed to eucalyptus in
** Also affects: linux
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu)
Status: Confirmed = Invalid
** Changed in: eucalyptus (Ubuntu)
Status: Confirmed = Invalid
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Virtio network stops working after dynamic virtio disk attachment
If you don't make the modprobe acpiphp, device hot-plug is not working,
so this bug prevent hotplugging drives and network interfaces on lucid.
IS there any hope of a fix?
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received
Sorry, what is the 'bug'? If it works after a 'modprobe acpiphp',
then I think this bug needs to be marked invalid against libvirt and
eucalyptus. You can make the module be automatically loaded by
listing it in /etc/modules.conf
If you want to pursue a bug against the kernel to have acpiphp
Sorry i wasn't clear
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug notification because you are a member of Ubuntu
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Ubuntu-server-bugs mailing list
Sorry i was not clear. The modprobe acpiphp is mandatory for device hot-
plugging, but when you try to hotplug some device you loose network.
Seem to be an acpiphp bug preventing device hot-plugging. This bug is a
real one.
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Virtio network stops working after dynamic virtio disk attachment
Ah, thanks. Seems I jumped the gun then. It still may be that the bug is
actually
in the guest kernel, but that's not certain.
** Changed in: eucalyptus (Ubuntu)
Status: Invalid = Confirmed
** Changed in: libvirt (Ubuntu)
Status: Invalid = Confirmed
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Virtio network stops
Note to self: try to reproduce with virtio disk and network with lucid and
maverick
guests in plain kvm.
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug notification because you are a member of Ubuntu
Server Team,
** Changed in: eucalyptus (Ubuntu)
Importance: Undecided = Medium
** Also affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu)
Importance: Undecided = Medium
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Virtio network stops working after dynamic virtio disk attachment
Thanks for reporting this and helping to make Ubuntu better.
I've confirmed this on lucid. Started with a VM built in virt-manager, with
ide root hd and virtio
network card. Network works. Then I do 'modprobe acpiphp' in the guest, and
on the host I do:
virsh attach-disk 13 --type disk
Note that if I do not do
modprobe acpiphp
in the guest, then networking stays up. So this appears to be a bug in the
guest kernel rather than on the host.
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug
With a maverick guest (on lucid host) i cannot reproduce this.
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to libvirt in ubuntu.
Finally, with a lucid guest on a maverick host, i can reproduce this.
Again only after doing 'modprobe acpiphp' in the guest before doing
the disk add.
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Virtio network stops working after dynamic virtio disk attachment
https://bugs.launchpad.net/bugs/602060
You received this bug notification
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