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When attempting a blockcommit from the top layer, the base argument passed is NULL. This will be dereferenced when attempting a commit with an empty image chain. Output the real volume path instead: virsh blockcommit --verbose --path vda --domain DOMNAME --wait error: invalid argument: top '/path/somefile' in chain for 'vda' has no backing file instead of: error: invalid argument: top '(null)' in chain for 'vda' has no backing file
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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