Inactive VM doesn't have qemuCaps set thus we'd never properly report that VM backups are supported only for running VMs. Move the capability check after the active check. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_backup.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_backup.c b/src/qemu/qemu_backup.c index c0445e0869..86b10a2b8a 100644 --- a/src/qemu/qemu_backup.c +++ b/src/qemu/qemu_backup.c @@ -750,12 +750,6 @@ qemuBackupBegin(virDomainObjPtr vm, virCheckFlags(VIR_DOMAIN_BACKUP_BEGIN_REUSE_EXTERNAL, -1); - if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_INCREMENTAL_BACKUP)) { - virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", - _("incremental backup is not supported yet")); - return -1; - } - if (!(def = virDomainBackupDefParseString(backupXML, priv->driver->xmlopt, 0))) return -1; @@ -793,6 +787,12 @@ qemuBackupBegin(virDomainObjPtr vm, goto endjob; } + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_INCREMENTAL_BACKUP)) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("incremental backup is not supported yet")); + goto endjob; + } + if (priv->backup) { virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("another backup job is already running")); -- 2.24.1