Re: [Qemu-block] Failing QEMU iotest 221

[Eric Blake]

On 5/3/19 3:54 PM, Eric Blake wrote:

>>> Ugh. Hole granularities are file-system specific, so we need to figure
>>> out some way to fuzz the input. It might also be possible to pick nicer
>>> size numbers - perhaps if the test image is sized at 64k+1 instead of
>>> 43009 (84*512, but NOT evenly divisible by 4k), the +1 byte is more
>>> likely to be directly one a hole boundary, rather than being somewhere
>>> that causes rounding the hole boundary 2k earlier because of 4k or 64k
>>> sizing constraints.
>>
>> Ok ... sounds like that's definitely something I'd like to leave to you
>> or one of the block guys to fix.
> 
> I can certainly prepare a patch that widens the file to 64k+1 instead of
> 43008+1, but since I can't (yet) reproduce the failure, I'd be relying
> on you to verify that it makes a difference.

Patch posted in another thread.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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