[Bug 1123220] Re: cloud-image VM causes kernel panic if image is resized

[Scott Moser]

** Also affects: cloud-init (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: cloud-init (Ubuntu)
       Status: New => Triaged

** Changed in: cloud-init (Ubuntu)
   Importance: Undecided => Low

** Description changed:

  I'd very much like to use the official cloud images from cloud-
  images.ubuntu.com on the Brightbox cloud, but I can never get them to
  boot properly in KVM.
  
  If the disk is resized then the VM always crashes with a kernel panic.
  
  Process is as follows:
  
  On a Precise Host running libvirt.
  
  - wget http://cloud-images.ubuntu.com/quantal/current/quantal-server-cloudimg-amd64-disk1.img
  - sudo cp quantal-server-cloudimg-amd64-disk1.img /var/lib/libvirt/images/test.img
  - sudo qemu-img resize /var/lib/libvirt/images/test.img 20G
  - virsh create test.xml
  
  If you view the console in virt-manager you'll find that the kernel has
  panicked on the disk remount after resizing.
  
  Issuing a 'virsh reset srv-7867c' causes the boot to progress normally.
  Similarly if the disk isn't resized the boot progresses normally.
  
  You get the same problem with:
  
  - all the standard images - with varying degrees of feedback in the failure message.
  - using the RHEL6 version of libvirt and kvm
  - if you remove the virtio from the disk stanza and replace with ide emulation.
  
  Any ideas?
  
  Related bugs:
-  * bug 1122245: booting from a cloud image hangs until virsh console is used 
-  * bug 1061977: Machine fails to commission when console=ttyS0 is present on kernel opts 
+  * bug 1122245: booting from a cloud image hangs until virsh console is used
+  * bug 1061977: Machine fails to commission when console=ttyS0 is present on kernel opts
+  * bug 1016695: add console=tty1 to cloud-image kernel boot parameters
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: cloud-initramfs-growroot 0.4ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-37.58-virtual 3.2.35
  Uname: Linux 3.2.0-37-virtual x86_64
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  Date: Tue Feb 12 15:48:19 2013
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: cloud-initramfs-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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Title:
  cloud-image VM causes kernel panic if image is resized

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