[Bug 580454] Re: libvirt 'ethernet' interface machines won't start.

[Neil Wilson]

/etc/qemu-ifup and /etc/qemu-ifdown don't check if the bridge exists
before trying to add devices. Initially it looked like this may be the
cause, but fixing them doesn't help.

** Summary changed:

- qemu-ifup script stops libvirt 'ethernet' interface machines from starting.
+ libvirt 'ethernet' interface machines won't start.

** Description changed:

  Binary package hint: qemu-kvm
  
- qemu-kvm assumes that a bridge exists (/etc/qemu-ifup doesn't check if
- the bridge exists before adding an interface to it.) and that the user
- will always want the interface added to it.
+ Machines with generic ethernet interfaces defined in Qemu simply don't
+ start
  
- This is not necessarily the case and causes properly defined machines
- via libvirt to fail with a cryptic error.
+ Properly defined machines via libvirt to fail with a cryptic error.
  
  error: Failed to start domain ubuntu
  error: monitor socket did not show up.: Connection refused
  
  neil at acer-aspire-5536:~$ virsh dumpxml ubuntu
  <domain type='kvm'>
-   <name>ubuntu</name>
-   <uuid>a16c5cc6-fcec-f621-9dce-03e32c619f6f</uuid>
-   <memory>524288</memory>
-   <currentMemory>524288</currentMemory>
-   <vcpu>1</vcpu>
-   <os>
-     <type arch='x86_64' machine='pc-0.12'>hvm</type>
-     <boot dev='hd'/>
-   </os>
-   <features>
-     <acpi/>
-   </features>
-   <clock offset='utc'/>
-   <on_poweroff>destroy</on_poweroff>
-   <on_reboot>restart</on_reboot>
-   <on_crash>destroy</on_crash>
-   <devices>
-     <emulator>/usr/bin/kvm</emulator>
-     <disk type='file' device='disk'>
-       <source file='/home/neil/machines/ubuntu-kvm/tmpSB2rjR.qcow2'/>
-       <target dev='hda' bus='ide'/>
-     </disk>
-     <interface type='ethernet'>
-       <mac address='52:54:00:4a:ca:ae'/>
-       <model type='virtio'/>
-     </interface>
-     <input type='mouse' bus='ps2'/>
-     <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'/>
-     <video>
-       <model type='cirrus' vram='9216' heads='1'/>
-     </video>
-   </devices>
+   <name>ubuntu</name>
+   <uuid>a16c5cc6-fcec-f621-9dce-03e32c619f6f</uuid>
+   <memory>524288</memory>
+   <currentMemory>524288</currentMemory>
+   <vcpu>1</vcpu>
+   <os>
+     <type arch='x86_64' machine='pc-0.12'>hvm</type>
+     <boot dev='hd'/>
+   </os>
+   <features>
+     <acpi/>
+   </features>
+   <clock offset='utc'/>
+   <on_poweroff>destroy</on_poweroff>
+   <on_reboot>restart</on_reboot>
+   <on_crash>destroy</on_crash>
+   <devices>
+     <emulator>/usr/bin/kvm</emulator>
+     <disk type='file' device='disk'>
+       <source file='/home/neil/machines/ubuntu-kvm/tmpSB2rjR.qcow2'/>
+       <target dev='hda' bus='ide'/>
+     </disk>
+     <interface type='ethernet'>
+       <mac address='52:54:00:4a:ca:ae'/>
+       <model type='virtio'/>
+     </interface>
+     <input type='mouse' bus='ps2'/>
+     <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'/>
+     <video>
+       <model type='cirrus' vram='9216' heads='1'/>
+     </video>
+   </devices>
  </domain>
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: qemu-common 0.12.3+noroms-0ubuntu9
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic x86_64
  Architecture: amd64
  Date: Fri May 14 11:56:32 2010
  Dependencies:
-  seabios 0.5.1-0ubuntu2
-  vgabios 0.6c-2ubuntu1
+  seabios 0.5.1-0ubuntu2
+  vgabios 0.6c-2ubuntu1
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
  KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
  Lsusb:
-  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Acer Aspire 5536
  PackageArchitecture: all
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=97bd7f86-677a-4093-8e28-e292a06e0ebd ro quiet splash
  ProcEnviron:
-  PATH=(custom, user)
-  LANG=en_GB.utf8
-  SHELL=/bin/bash
+  PATH=(custom, user)
+  LANG=en_GB.utf8
+  SHELL=/bin/bash
  SourcePackage: qemu-kvm
  dmi.bios.date: 02/27/2009
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.03
  dmi.board.name: JV50PU
  dmi.board.vendor: Acer
  dmi.board.version: Rev
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.03:bd02/27/2009:svnAcer:pnAspire5536:pvr0100:rvnAcer:rnJV50PU:rvrRev:cvnAcer:ct10:cvrN/A:
  dmi.product.name: Aspire 5536
  dmi.product.version: 0100
  dmi.sys.vendor: Acer

** Also affects: libvirt (Ubuntu)
   Importance: Undecided
       Status: New

-- 
libvirt 'ethernet' interface machines won't start.
https://bugs.launchpad.net/bugs/580454
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.