From mboxrd@z Thu Jan  1 00:00:00 1970
From: Xiao Guangrong <guangrong.xiao@gmail.com>
Subject: Re: [PATCH] migration: introduce decompress-error-check
Date: Sat, 28 Apr 2018 14:13:11 +0800
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Cc: kvm@vger.kernel.org, mst@redhat.com, mtosatti@redhat.com,
	Xiao Guangrong <xiaoguangrong@tencent.com>,
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On 04/27/2018 07:29 PM, Dr. David Alan Gilbert wrote:

>>
>> Yes, can not agree with you more. :)
> 
> The challenge is how to put something into the stream without breaking
> an old version of QEMU that's receiving the stream.
> 

Er, i did not think this case :(.

The new parameter as this patch did is the only idea now in my mind...
not sure if Eric and Peter have another solution.