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Re: [Qemu-devel] fw cfg files cross-version migration races


From: Paolo Bonzini
Subject: Re: [Qemu-devel] fw cfg files cross-version migration races
Date: Wed, 03 Jun 2015 10:31:47 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0


On 02/06/2015 09:11, Gerd Hoffmann wrote:
> Accessing fw_cfg after migration is fine.  Problem is this ...
> 
>   (1) read directory
>   (2) migrate
>   (3) read file
> 
> ... in case the file ordering happens to be different on the destination
> host due to initialization order changes.
> 
> So, sorting entries (and the index assigned too) should fix this, right?
> That looks easiest to me.

Agreed.

Paolo



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