Re: [Qemu-devel] [PULL] Migration of misc devices

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2011-04-18 17:44, Anthony Liguori wrote:
> On 04/18/2011 10:36 AM, Jan Kiszka wrote:
>> On 2011-04-18 17:12, Anthony Liguori wrote:
>>> On 04/17/2011 03:08 PM, Juan Quintela wrote:
>>>>
>>>>
>>>> The following changes since commit a0102082de4026833afbd2525e8a6320d1f92885:
>>>>
>>>>   usb: fix spelling errors in usb-linux.c (2011-04-16 12:24:28 +0100)
>>>>
>>>> are available in the git repository at:
>>>>   git://repo.or.cz/qemu/quintela.git vmstate-misc-devices-v2
>>>
>>> Migration appears to be broken for me.  It's not caused by this series
>>> but I'm surprised you didn't encounter it.  Maybe it's my kernel version?
>>>
>>> My suspicion is that the cause of this is:
>>>
>>> commit 0ec329dab938e2d97d12a91f8ed15fec27b325e0
>>> Author: Jan Kiszka <jan.kiszka@siemens.com>
>>> Date:   Mon Feb 7 12:19:26 2011 +0100
>>>
>>>     kvm: x86: Introduce kvmclock device to save/restore its state
>>
>> Can you prove your suspicion a bit by retrying with -cpu ...,-kvmclock?
>> Is your guest using kvmclock? Are you migrating from old to new or
>> between new versions?
> 
> Heh, it turns out I was migrating from KVM to TCG :-)
> 
> This changeset "breaks" that but I don't think I'd count this as a
> supported use-case so I don't count it as a regression.

I would say it now breaks earlier and less subtly. :)

Jan

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