Originally the migration code didn't register the NBD disk port with the port allocator when it was manually specified. Later when commit e74d627bb3bc2684cbe3 refactored the code and started registering it, the old logic which was clearing 'priv->nbdPort' in case when it was manually specified was not removed. This caused following problems: - the port was not released after successful migration - the port was released even when it was not allocated on failures regarding the NBD server start - the port was not released on other failures of the migration after NBD server startup To address this we remove the assumption that 'priv->nbdPort' is used only for auto-allocated port and fill it only once the port is allocated and make the caller of qemuMigrationDstStartNBDServer responsible for releasing it. Fixes: e74d627bb3bc2684cbe3edc1e2f7cc745b4e1ff3 Resolves: https://issues.redhat.com/browse/RHEL-21543 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Libvirt API for virtualization
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.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.0 (or later). See the files COPYING.LESSER
and COPYING
for full license terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- users@lists.libvirt.org (for user discussions)
- devel@lists.libvirt.org (for development only)
Further details on contacting the project are available on the website: