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

[Avi Kivity]

On 05/12/2010 02:11 AM, Juan Quintela wrote:
> Peter Lieven<address@hidden>  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<address@hidden>
> 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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