Public bug reported:

Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
kvm.git Commit:205befd9a5c701b56f569434045821f413f08f6d
qemu-kvm uq/master Commit:ca916d3729564d0eb3c2374a96903f7e8aced8a7
Host Kernel Version:3.11.0-rc1
Hardware:Romley_EP, Ivytown_EP

Bug detailed description:
--------------------------
after guest live migration, the guest will hang, and ping IP fail

note:
1. after guest save/restore, the guest will hang, and ping IP fail
2. This should be a qemu-kvm bug.
kvm      + qemu-kvm   =  result
205befd9 + ca916d37   =  bad
205befd9 + f03d07d4   =  good


Reproduce steps:
----------------
1.Start a TCP daemon for migration
qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
-net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow -incoming tcp:localhost:4444
2. create guest
qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
-net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow 
3. migrate tcp:localhost:4444

Current result:
----------------
guest hang

Expected result:
----------------
after live/migration or save/restore, the guest works fine

** Affects: qemu
     Importance: Undecided
         Status: New

** Attachment added: "guest serial log"
   
https://bugs.launchpad.net/bugs/1213797/+attachment/3777611/+files/guest_serial.log

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https://bugs.launchpad.net/bugs/1213797

Title:
  Guest hang after live migration

Status in QEMU:
  New

Bug description:
  Environment:
  ------------
  Host OS (ia32/ia32e/IA64):ia32e
  Guest OS (ia32/ia32e/IA64):ia32e
  Guest OS Type (Linux/Windows):Linux
  kvm.git Commit:205befd9a5c701b56f569434045821f413f08f6d
  qemu-kvm uq/master Commit:ca916d3729564d0eb3c2374a96903f7e8aced8a7
  Host Kernel Version:3.11.0-rc1
  Hardware:Romley_EP, Ivytown_EP

  Bug detailed description:
  --------------------------
  after guest live migration, the guest will hang, and ping IP fail

  note:
  1. after guest save/restore, the guest will hang, and ping IP fail
  2. This should be a qemu-kvm bug.
  kvm      + qemu-kvm   =  result
  205befd9 + ca916d37   =  bad
  205befd9 + f03d07d4   =  good

  
  Reproduce steps:
  ----------------
  1.Start a TCP daemon for migration
  qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
  -net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow -incoming tcp:localhost:4444
  2. create guest
  qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net nic,macaddr=00:12:34:56:13:45
  -net tap,script=/etc/kvm/qemu-ifup rhel6u2.qcow 
  3. migrate tcp:localhost:4444

  Current result:
  ----------------
  guest hang

  Expected result:
  ----------------
  after live/migration or save/restore, the guest works fine

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