| 2010-10-28 20:52:26 |
Steven Wagner |
bug |
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added bug |
| 2010-10-28 20:53:55 |
Steven Wagner |
attachment added |
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image generated by munin libvirt-ifstat plugin, shows break in data where info was irretrievable. https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/+attachment/1714873/+files/libvirt_ifstat-week.png |
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| 2010-11-02 21:55:34 |
Mathias Gug |
libvirt (Ubuntu): importance |
Undecided |
Low |
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| 2010-11-12 01:42:05 |
Steven Wagner |
bug watch added |
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https://bugzilla.redhat.com/show_bug.cgi?id=650543 |
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| 2010-11-25 13:01:25 |
Dave Walker |
attachment added |
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attachment https://bugs.edge.launchpad.net/bugs/668042/+attachment/1744759/+files/attachment |
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| 2010-11-25 13:07:23 |
Dave Walker |
libvirt (Ubuntu): status |
New |
Triaged |
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| 2010-11-25 13:07:24 |
Dave Walker |
libvirt (Ubuntu): assignee |
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Dave Walker (davewalker) |
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| 2010-11-25 13:07:37 |
Dave Walker |
bug |
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added subscriber Dave Walker |
| 2010-11-25 13:09:06 |
Dave Walker |
summary |
target device info is not in dumpxml |
If Libvirtd is restarted, libvirt drops active domains lose network interface info. |
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| 2010-11-25 13:14:41 |
Dave Walker |
bug watch added |
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https://bugzilla.redhat.com/show_bug.cgi?id=591438 |
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| 2010-11-25 13:14:41 |
Dave Walker |
bug task added |
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libvirt (Fedora) |
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| 2010-11-25 13:16:28 |
Dave Walker |
nominated for series |
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Ubuntu Lucid |
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| 2010-11-25 13:24:19 |
Dave Walker |
description |
Missing target device info makes it impossible to retrieve network usage information about a guest from libvirt.
Reproduce:
Trigger of issue unknown.
Workaround:
Restart the guest, and the network device info reappears again.
Detect:
Use virsh with the dumpxml command to view information about a running guest.
Good result:
virsh # dumpxml myhost1
...
<interface type='bridge'>
<mac address='52:54:00:11:a6:2c'/>
<source bridge='br0'/>
<target dev='vnet0'/>
<model type='virtio'/>
</interface>
...
Bad result:
virsh # dumpxml myhost2
...
<interface type='bridge'>
<mac address='52:54:14:79:32:6d'/>
<source bridge='br0'/>
<model type='virtio'/>
</interface>
...
I am attaching an image of my munin graphs to illustrate the effects of the bug.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libvirt-bin 0.7.5-5ubuntu27.6
ProcVersionSignature: Ubuntu 2.6.32-23.37-server 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-server x86_64
Architecture: amd64
Date: Thu Oct 28 13:40:36 2010
InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: libvirt |
IMPACT: If libvirt daemon is restarted, it forgets about domain interfaces (breaking domifstat)
RESOLUTION: Check that the domain is inactive before wiping knowledge of it.
PATCH: Based on upstream commit, attached comment #6.
TEST CASE: (Based on Fedora bug report)
{{{
1. Start QEMU/KVM guest with: sudo virsh start vm01
2. restart libvirtd: sudo restart libvrtd
3. Get statistics with sudo virsh domifstat vm01 vnet0
Actual results:
$ sudo virsh domifstat vm01 vnet0
error: Failed to get interface stats vm01 vnet0
error: invalid argument in invalid path, 'vnet0' is not a known interface
Expected results:
$ sudo virsh domifstat vm01 vnet0
vnet0 rx_bytes 83980
vnet0 rx_packets 1612
vnet0 rx_errs 0
vnet0 rx_drop 0
vnet0 tx_bytes 3546
vnet0 tx_packets 15
vnet0 tx_errs 0
vnet0 tx_drop 0
}}}
REGRESSION POTENTIAL: This would seem to be low, the patch adds an extra conditional statement before wiping the domain network interface knowledge. The patch has been in upstream Git since 4/05/2010, and has had at least one upstream release and is also in Maverick.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libvirt-bin 0.7.5-5ubuntu27.6
ProcVersionSignature: Ubuntu 2.6.32-23.37-server 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-server x86_64
Architecture: amd64
Date: Thu Oct 28 13:40:36 2010
InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: libvirt
|
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| 2010-11-26 13:34:23 |
Martin Pitt |
bug task added |
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libvirt (Ubuntu Lucid) |
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| 2010-11-26 21:16:47 |
Dave Walker |
libvirt (Ubuntu Lucid): status |
New |
Fix Committed |
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| 2010-11-26 21:16:50 |
Dave Walker |
libvirt (Ubuntu Lucid): assignee |
|
Dave Walker (davewalker) |
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| 2010-11-26 21:16:54 |
Dave Walker |
libvirt (Ubuntu): status |
Triaged |
Fix Released |
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| 2010-11-26 21:16:58 |
Dave Walker |
libvirt (Ubuntu Lucid): importance |
Undecided |
Low |
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| 2010-12-13 20:16:04 |
Dave Walker |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2010-12-13 20:23:17 |
Steve Langasek |
bug |
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added subscriber SRU Verification |
| 2010-12-13 20:23:22 |
Steve Langasek |
tags |
amd64 apport-bug lucid |
amd64 apport-bug lucid verification-needed |
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| 2010-12-13 21:17:37 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/lucid-proposed/libvirt |
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| 2010-12-15 20:26:52 |
Imre Gergely |
bug |
|
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added subscriber Imre Gergely |
| 2010-12-20 08:17:50 |
Martin Pitt |
tags |
amd64 apport-bug lucid verification-needed |
amd64 apport-bug lucid verification-done |
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| 2010-12-21 21:05:08 |
Launchpad Janitor |
libvirt (Ubuntu Lucid): status |
Fix Committed |
Fix Released |
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| 2010-12-21 21:18:16 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/lucid-updates/libvirt |
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| 2011-09-19 21:38:00 |
Ubuntu Foundations Team Bug Bot |
tags |
amd64 apport-bug lucid verification-done |
amd64 apport-bug lucid testcase verification-done |
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| 2017-10-27 08:18:30 |
Bug Watch Updater |
libvirt (Fedora): status |
Unknown |
Fix Released |
|
| 2017-10-27 08:18:30 |
Bug Watch Updater |
libvirt (Fedora): importance |
Unknown |
Medium |
|
