Kevin Wolf schrieb: > Am 27.10.2009 15:11, schrieb Anthony Liguori: > >> Stefan Weil wrote: >> >>> Images with disk size 0 may be used for >>> VM snapshots, but not to save normal block data. >>> >>> It is possible to create such images using >>> qemu-img, but opening them later fails. >>> >>> So even "qemu-img info image.qcow2" is not >>> possible for an image created with >>> "qemu-img create -f qcow2 image.qcow2 0". >>> >>> This is fixed here. >>> >>> Signed-off-by: Stefan Weil <w...@mail.berlios.de> >>> >>> >> What do you think Kevin? >> > > That with malloc instead of qemu_malloc the patch would have been a bit > smaller. ;-) I think it can make sense to have such images in some cases > (although a 64k image isn't much worse) and I don't see any obvious > problem with the patch. Not sure how guests like 0 byte disks, but I > assume Stefan has tested that. > > I'm just wondering how Stefan did create his test image - with current > qemu-img I can't create such images, so I needed to patch it first. For > this one I'll send a fix. > > Kevin >
Hi Kevin, obviously, I called an old version of qemu-img to create the test image (from debian's qemu package). Regards Stefan
