Re: [Qemu-devel] [Bug 1293975] [NEW] Guest is destroyed after live migration

[陈梁]

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 <address@hidden>
> Date:   Wed Sep 4 02:19:44 2013 +0200
> 
>    cputlb: Change tlb_flush() argument to CPUState
> 
>    Signed-off-by: Andreas Färber <address@hidden>
> 
> ** 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 <address@hidden>
>  Date:   Wed Sep 4 02:19:44 2013 +0200
> 
>      cputlb: Change tlb_flush() argument to CPUState
> 
>      Signed-off-by: Andreas Färber <address@hidden>
> 
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>