Do you have some qemu log about the failure?
> 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:8fbb1daf3e8254afc17fc4490b69db00920197ae
> qemu.git Commit: 6fffa26244737f8fd8641a21fee29bd6aa9fdff5
> Host Kernel Version:3.14.0-rc3
> Hardware:Romley_EP, Ivytown_EP
>
>
> Bug detailed description:
> --------------------------
> after live migration, the guest will be destroyed
>
> note:
> after save restore, the guest will be destroyed.
>
> Reproduce steps:
> ----------------
> 1.Start a TCP daemon for migration
> qemu-system-x86_64 -enable-kvm -m 2048 -smp 2 -net none /root/rhel6u4.qcow
> -incoming tcp:localhost:4444
> 2. create guest
> qemu-system-x86_64 -enable-kvm -m 2048 -smp 2 -net none /root/rhel6u4.qcow
> 3. ctrl+alt+2 to switch to qemu monitor
> 4. migrate tcp:localhost:4444
>
> Current result:
> ----------------
> the guest will be destroyed
>
> Expected result:
> ----------------
> the guest works fine
>
> Basic root-causing log:
> ----------------------
> qemu-system-x86[15027]: segfault at 698 ip 00007f94be628166 sp
> 00007f94bb820c58 error 6 in libc-2.12.so[7f94be5a5000+189000]
>
>
> Bisect result
> the first bad commit:
> commit 00c8cb0a36f51a6866a83c08962d12a0eb21864b
> Author: Andreas Färber <afaer...@suse.de>
> Date: Wed Sep 4 02:19:44 2013 +0200
>
> cputlb: Change tlb_flush() argument to CPUState
>
> Signed-off-by: Andreas Färber <afaer...@suse.de>
>
> ** Affects: qemu
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are a member of qemu-
> devel-ml, which is subscribed to QEMU.
> https://bugs.launchpad.net/bugs/1293975
>
> Title:
> Guest is destroyed 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:8fbb1daf3e8254afc17fc4490b69db00920197ae
> qemu.git Commit: 6fffa26244737f8fd8641a21fee29bd6aa9fdff5
> Host Kernel Version:3.14.0-rc3
> Hardware:Romley_EP, Ivytown_EP
>
>
> Bug detailed description:
> --------------------------
> after live migration, the guest will be destroyed
>
> note:
> after save restore, the guest will be destroyed.
>
> Reproduce steps:
> ----------------
> 1.Start a TCP daemon for migration
> qemu-system-x86_64 -enable-kvm -m 2048 -smp 2 -net none /root/rhel6u4.qcow
> -incoming tcp:localhost:4444
> 2. create guest
> qemu-system-x86_64 -enable-kvm -m 2048 -smp 2 -net none /root/rhel6u4.qcow
> 3. ctrl+alt+2 to switch to qemu monitor
> 4. migrate tcp:localhost:4444
>
> Current result:
> ----------------
> the guest will be destroyed
>
> Expected result:
> ----------------
> the guest works fine
>
> Basic root-causing log:
> ----------------------
> qemu-system-x86[15027]: segfault at 698 ip 00007f94be628166 sp
> 00007f94bb820c58 error 6 in libc-2.12.so[7f94be5a5000+189000]
>
>
> Bisect result
> the first bad commit:
> commit 00c8cb0a36f51a6866a83c08962d12a0eb21864b
> Author: Andreas Färber <afaer...@suse.de>
> Date: Wed Sep 4 02:19:44 2013 +0200
>
> cputlb: Change tlb_flush() argument to CPUState
>
> Signed-off-by: Andreas Färber <afaer...@suse.de>
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1293975/+subscriptions
>
