[Qemu-devel] Re: Qemu-KVM Livate Migration 0.12.2 -> 0.12.3/4 broken?

[Avi Kivity <avi@redhat.com>]

On 05/12/2010 02:11 AM, Juan Quintela wrote:
> Peter Lieven<pl@dlh.net>  wrote:
>    
>> Hi Qemu/KVM Devel Team,
>>
>> Live Migration from a 0.12.2 qemu-kvm to a 0.12.3 (and 0.12.4)
>> does not work: "load of migration failed"
>>
>> Is there any way to find out, why exactly it fails? I have
>> a lot of VMs running on 0.12.2 and would like to migrate
>> them to 0.12.4
>>
>> cmdline:
>> -net tap,vlan=6,script=no,downscript=no,ifname=tap7 -net
>> nic,vlan=6,model=e1000,macaddr=52:54:00:fe:00:88   -net
>> tap,vlan=651,script=no,downscript=no,ifname=tap8 -net
>> nic,vlan=651,model=e1000,macaddr=52:54:00:ff:00:69   -drive
>> file=/dev/mapper/iqn.2001-05.com.equallogic:0-8a0906-b6eca7604-6280020bc4b4bde8-quagga,if=ide,boot=on,cache=none,aio=native
>> -m 256 -monitor tcp:0:4090,server,nowait -vnc :90 -name 'Quagga' -boot
>> order=dc,menu=on  -k de  -incoming tcp:172.21.59.132:5090 -pidfile
>> /var/run/qemu/vm-148.pid  -rtc base=utc,clock=vm  -usb -usbdevice
>> tablet  -no-kvm-irqchip  -vga cirrus
>>
>> Any hints would be appreciated!
>>      
> Can you try reverting this patch?
>
> commit 3fa017e24b0a0f0e68619a689b9b02fe486dae9e
> Author: Marcelo Tosatti<mtosatti@redhat.com>
> Date:   Thu Feb 11 18:19:44 2010 -0200
>
>      ide save/restore pio/atapi cmd transfer fields and io buffer
>
> and told me if it works?
>
>    

Any idea why it fails?  And how to fix it?

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