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82507838 refactored the code to keep both the raw and canonicalized form of the backingStore, which breaks badly when the storage pool contains a storage volume, which is missing its backing store file: # ./daemon/libvirtd -l 2012-11-07 12:43:33.279+0000: 22175: info : libvirt version: 1.0.0 2012-11-07 12:43:33.279+0000: 22175: error : absolutePathFromBaseFile:542 : Can't canonicalize path '/var/lib/libvirt/images/base.qcow2': No such file or directory 2012-11-07 12:43:33.280+0000: 22175: error : storageDriverAutostart:115 : Failed to autostart storage pool 'default': Can't canonicalize path '/var/lib/libvirt/images/base.qcow2': No such file or directory This is because virStorageFileGetMetadataFromBuf() aborts with -1 if the filename of the backingStore can not be canonicalized: #0 absolutePathFromBaseFile () at util/storage_file.c:541 #1 virStorageFileGetMetadataFromBuf () at util/storage_file.c:728 #2 virStorageFileGetMetadataFromFD () at util/storage_file.c:932 #3 virStorageBackendProbeTarget () at storage/storage_backend_fs.c:94 #4 virStorageBackendFileSystemRefresh () at storage/storage_backend_fs.c:849 #5 storagePoolStart () at storage/storage_driver.c:700 #6 virStoragePoolCreate () at libvirt.c:12471 ... Treat files which miss their backing file as standalone files. Signed-off-by: Philipp Hahn <hahn@univention.de>
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>