Re: [Libguestfs] nbdkit: cow.c:591: cow_extents: Assertion `count > 0' failed.

I wonder if this is an overflow: $ ./nbdkit sparse-random 3G --filter=cow --run 'nbdinfo --map $uri' # OK $ ./nbdkit sparse-random 4G --filter=cow --run 'nbdinfo --map $uri' nbdkit: cow.c:591: cow_extents: Assertion `count > 0' failed. Any size >= 4G seems to cause the crash. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v