[Qemu-devel] [Bug 1120383] Re: incremental live block migration of qemu 1.3.1 doesn't work

[Qemu-devel] [Bug 1120383] Re: incremental live block migration of qemu 1.3.1 doesn't work

[Thomas Huth]

If I've got the comments right, this bug has been fixed, so closing this
now. If there is an issue remaining, please open a new bug.

** Changed in: qemu
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1120383

Title:
  incremental live block migration of qemu 1.3.1 doesn't work

Status in QEMU:
  Fix Released

Bug description:
  We tested qemu 1.3.1 for live migration of block device. It failed
  with error.   Since qemu-kvm 1.2.0 is ok for this test, we think this
  problem is introduced by new qemu 1.3.x releases.

  To reproduce:

  1. compile qemu 1.3.1:
      # cd qemu-1.3.1
      # ./configure --prefix=/usr --sysconfdir=/etc --target-list=x86_64-softmmu
      # make; make install

  2. prepare source(172.16.1.13):
      # qemu-img create -f qcow2 os.img -b /home/reno/wheezyx64     ###Note: wheezyx64 is a template image for Debian Wheezy 
      # qemu-system-x86_64 -hda os.img -m 512 --enable-kvm -vnc :51 -monitor stdio

  3. prepare destination(172.16.1.14):
      # qemu-img create -f qcow2 os.img -b /home/reno/wheezyx64    
      # qemu-system-x86_64 -hda os.img -m 512 --enable-kvm -vnc :51 -incoming tcp:0:4444

  4. do live migrate:
      on source monitor command prompt, input:
      (qemu) migrate -i tcp:172.16.1.14:4444

  monitor command will quit immediately and on destination host, there are errors thrown:
      Receiving block device images
      Co-routine re-entered recursively
      Aborted

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