On 28/04/2019 04.36, Eric Blake wrote:
> On 4/26/19 5:53 AM, Kevin Wolf wrote:
> 
>>>  creating large image
>>> +qemu-img: TEST_DIR/t.IMGFMT: The image size is too large for file
>>> format 'IMGFMT'
>>>  Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=5368709120000
>>> [...]
>>>
>>> Could this be fixed somehow, or should the test rather be skipped for
>>> IMGFMT=raw?
>>
>> The test passes for me on XFS. Looks like the raw driver can handle
>> large image files, but your host filesystem can't.
>>
>> We would have to check whether the host filesystem can support large
>> files and skip the test if it can't. I'm not sure how to do that. But
>> actually, this isn't testing anything interesting for raw, so just
>> unconditionally disabling the test for raw could be reasonable enough.
> 
> iotest 220 in commit 3b94c343 can serve as such an example (it skips the
> test on at least ext4, while passing on tmpfs which allows larger sparse
> files).

That should do the trick, thanks. I'll send a patch.

 Thomas