Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry

[Stefan Priebe - Profihost AG]

Am 07.02.2014 10:31, schrieb Dr. David Alan Gilbert:
> * Stefan Priebe - Profihost AG (address@hidden) wrote:
>>
>> Am 07.02.2014 10:15, schrieb Dr. David Alan Gilbert:
>>> * Stefan Priebe - Profihost AG (address@hidden) wrote:
>>>> Am 07.02.2014 09:15, schrieb Alexandre DERUMIER:
>>>>>
>>>>> do you use xbzrle for live migration ?
>>>>
>>>> no - i'm really stucked right now with this. Biggest problem i can't
>>>> reproduce with test machines ;-(
>>>
>>> Only being able to test on your production VMs isn't fun;
>>> is it possible or you to run an extra program on these VMs - e.g.
>>> if we came up with a simple (userland) memory test?
>>
>> You mean to reproduce?
> 
> I'm more interested in seeing what type of corruption is happening;
> if you've got a test VM that corrupts memory and we can run a program
> in that vm that writes a known pattern into memory and checks it
> then see what changed after migration, it might give a clue.
> 
> But obviously this would only be of any use if run on the VM that actually
> fails.

Right that makes sense - sadly i still don't know how to reproduce? Any
app ideas i can try?


>> I already tried https://code.google.com/p/stressapptest/ while migrating
>> on a test VM but this works fine.
>>
>> I also tried running mysql bench while migrating on a test vm and this
>> works too ;-(
> 
> 
> Dave
> --
> Dr. David Alan Gilbert / address@hidden / Manchester, UK
>