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Re: [Xen-devel] live migration to qemu.git fails



Cc Anthony and Stefano

On Tue, Aug 02, 2016 at 11:58:05AM +0200, Olaf Hering wrote:
> Doing a live migration of a HVM domU from staging-4.5 with its included
> qemu-xen to staging-4.7 with qemu-xen from qemu.org (either master or
> 2.6.0) fails:
> 
> # cat /var/log/xen/qemu-dm-fv-x64-sles12sp1-clean--incoming.log
> char device redirected to /dev/pts/4 (label serial0)
> xen_ram_alloc: do not alloc f800000 bytes of ram at 0 when runstate is 
> INMIGRATE
> xen_ram_alloc: do not alloc 800000 bytes of ram at f800000 when runstate is 
> INMIGRATE
> xen_ram_alloc: do not alloc 10000 bytes of ram at 10000000 when runstate is 
> INMIGRATE
> xen_ram_alloc: do not alloc 40000 bytes of ram at 10010000 when runstate is 
> INMIGRATE
> VNC server running on 127.0.0.1:5900
> qemu-system-i386: Expected vmdescription section, but got 0
> 
> 
> 'xl vnc domU' on the receiver side just shows "guest has not initialized
> display yet". For some reason the domU is still alive, 'vmstat 1' via
> ssh keeps running.
> 
> 'xl shutdown domU' fails. It looks like the guest OS shuts down, the ssh
> connection gets terminated, but the domU becomes busy according to 'xl
> top', and never shuts down.
> 
> domU.cfg looks like this:
> name="fv-x64-sles12sp1-clean"
> memory=256
> serial="pty"
> builder="hvm"
> boot="cd"
> disk=[
>         'file:/disk0.raw,hda,w',
>         'file:/DVD1.iso,hdc:cdrom,r',
> ]
> vif=[
>         'bridge=br0'
> ]
> keymap="de"
> vfb = [
>         'type=vnc,vncunused=1,keymap=de'
> ]
> 
> usb=1
> usbdevice='tablet'
> device_model_override="/root/dm.sh"
> 
> 
> The override is to make sure to use qemu-xen as included in xen-4.5 on
> the sending side and qemu.git on the receiving side.
> 
> Olaf



> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> https://lists.xen.org/xen-devel


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