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).

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