> * ???? (chenliang0...@icloud.com) wrote:
>>
>>> * ???? (chenliang0...@icloud.com) wrote:
>>>>
>>>> ?? 2014??4??8????????10:29??Dr. David Alan Gilbert (git)
>>>> <dgilb...@redhat.com> ??????
>>>>
>>>>> From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>
>>>>>
>>>>> Make qemu_peek_buffer repeatedly call fill_buffer until it gets
>>>>> all the data it requires, or until there is an error.
>>>>>
>>>>> At the moment, qemu_peek_buffer will try one qemu_fill_buffer if there
>>>>> isn't enough data waiting, however the kernel is entitled to return
>>>>> just a few bytes, and still leave qemu_peek_buffer with less bytes
>>>>> than it needed. I've seen this fail in a dev world, and I think it
>>>>> could theoretically fail in the peeking of the subsection headers in
>>>>> the current world.
>>>> hmm, I also have got some errors(infrequently). Maybe It is one point.
>>>> Could you show some messages about the error?
>>>
>>> I've only seen the errors in my visitor/ber world where I use the
>>> peek_buffer
>>> a lot more; but the one place it is used in the existing code is in
>>> the code to check if we have the start of a subsection; if that goes wrong
>>> I'm not sure what error would be produced.
>>>
>>> Dave
>> In my observation, error is more likely to happen if migration thread is
>> blocked too long.
>> BTW, xbzrle and auto convergence are disable.
>
> What error do you see?
>
> Dave
It likes section id 1 load failed at dest side.
> --
> Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
