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Re: [Qemu-devel] iotest 194 fails on vhdx
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] iotest 194 fails on vhdx |
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Date: |
Sat, 28 Oct 2017 10:25:50 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
On 28/10/2017 08:57, Alexey Kardashevskiy wrote:
> On 27/10/17 18:12, Jeff Cody wrote:
>> VHDX does not support migration (VMDK fails the same way).
>
> Probably a very ignorant question but how can an image format not support
> migration at all? Is not it simple writing blocks, one-by-one? Thanks.
VHDX does not implement bdrv_invalidate_cache. If you add that
callback, it can support migration.
Paolo