> >>> The qcow block driver format is no longer maintained and likely > >>> contains > >>> serious data corruptors. Urge users to stay away for it, and advertise > >>> the new and improved replacement. > > > > I'm not sure how I feel about this. Can we prove qcow is broken? Is > > it only broken for writes and not reads? > > Well, Kevin posted a patch, so it is. It's definitely unmaintained. > Given it's a qemu native format, there is no interoperability value > except with old qemu versions. > > > If we're printing a warning, does that mean we want to deprecate qcow > > and eventually remove it (or remove write support, at least)? > > Yes.
IMHO there's little value in just printing a warning. Until it actually goes away, people are liable to assume we're just being paranoid/awkward and keep using it anyway. I suggest crippling it now and, assuming noone steps up to fix+maintain it, ripping out the write support altogether at next release. I'm assuming the readonly code is in better shape, and can be supported with relatively little effort. Paul -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
