On Tue, Nov 05, 2013 at 08:42:08AM -0700, Eric Blake wrote: > On 11/05/2013 01:13 AM, Martin Kletzander wrote: > > On Mon, Nov 04, 2013 at 02:30:50PM -0700, Eric Blake wrote: > >> A qcow2 file with a backing file of 'gluster://host/vol/file' should > >> not try to look for a directory named './gluster:/' in the file system. > >> > >> * src/util/virstoragefile.c (virBackingStoreIsFile): Broaden check > >> to include all protocols. > >> > >> Signed-off-by: Eric Blake <eblake@xxxxxxxxxx> > >> --- > >> > > >> + /* Reject anything that looks like a protocol (such as nbd: or > >> + * rbd:); if someone really does want a relative file name that > >> + * includes ':', they can always prefix './'. */ > > > > This makes complete sense, I just can't figure out how qemu treats > > this because when I tried it on upstream now, it ended up with a > > segfault :) > > A qemu segfault? Can you post the reproduction recipe? > I tried my first thing and it crashed. This is enough: qemu-img create -f qcow2 -o backing_file=gluster://test1.qcow2,backing_fmt=qcow2 test.qcow2 1M qemu-img convert -f qcow2 -O raw test.qcow2 output.img I just haven't had the time to check why and where it segfaults... Martin
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