Red Hat Bugzilla – Bug 872582
error: internal error block_io_throttle inserted entry was not in expected format
Last modified: 2013-01-06 15:13:49 EST
Description of problem: I was trying to follow: https://fedoraproject.org/wiki/QA:Testcase_Virtualization_IO_Throttling But: # virsh blkdeviotune Machine1 vda error: Unable to get block I/O throttle parameters error: internal error block_io_throttle inserted entry was not in expected format Version-Release number of selected component (if applicable): libvirt-0.10.2.1-2.fc18.x86_64 libvirt-client-0.10.2.1-2.fc18.x86_64 libvirt-daemon-0.10.2.1-2.fc18.x86_64 libvirt-daemon-config-network-0.10.2.1-2.fc18.x86_64 libvirt-daemon-config-nwfilter-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-interface-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-lxc-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-network-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-nodedev-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-nwfilter-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-qemu-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-secret-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-storage-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-uml-0.10.2.1-2.fc18.x86_64 libvirt-daemon-driver-xen-0.10.2.1-2.fc18.x86_64 libvirt-daemon-kvm-0.10.2.1-2.fc18.x86_64 libvirt-gconfig-0.1.3-1.fc18.x86_64 libvirt-glib-0.1.3-1.fc18.x86_64 libvirt-gobject-0.1.3-1.fc18.x86_64 libvirt-python-0.10.2.1-2.fc18.x86_64 python-virtinst-0.600.3-2.fc18.noarch virt-manager-0.9.4-3.fc18.noarch virt-manager-common-0.9.4-3.fc18.noarch virt-viewer-0.5.4-2.fc18.x86_64
Fixed by these commits, and will be in 0.10.2.2: commit 23d47b33a2f8b524c32d556d6d55a7ccb0c5903a Author: Stefan Hajnoczi <stefanha@redhat.com> Date: Thu Nov 1 18:20:56 2012 +0100 qemu: Fix name comparison in qemuMonitorJSONBlockIoThrottleInfo() The string comparison logic was inverted and matched the first drive that does *not* have the name we search for. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> commit 04ee70bfda21bfdb48b55f074aed25fc75bb9226 Author: Stefan Hajnoczi <stefanha@redhat.com> Date: Thu Nov 1 18:20:55 2012 +0100 qemu: Keep QEMU host drive prefix in BlkIoTune The QEMU -drive id= begins with libvirt's QEMU host drive prefix ("drive-"), which is stripped off in several places two convert between host ("-drive") and guest ("-device") device names. In the case of BlkIoTune it is unnecessary to strip the QEMU host drive prefix because we operate on "info block"/"query-block" output that uses host drive names. Stripping the prefix incorrectly caused string comparisons to fail since we were comparing the guest device name against the host device name. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
libvirt-0.10.2.2-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/libvirt-0.10.2.2-1.fc18