Hi, I think I've found an issue with overlay. Steps to reproduce:
# cd $(mktemp -d)
# mkdir lower upper work root
# truncate -s 3G lower/sparse
# mount -t overlay -o workdir=work,upperdir=upper,lowerdir=lower overlay
work
# truncate -s 0 work/sparse
truncate: cannot open ‘work/sparse’ for writing: Value too large for
defined data type
# umount work
My kernel is: 3.19.0-26-generic #28~14.04.1-Ubuntu SMP
Thanks,
Alkis Georgopoulos
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