[Libguestfs] virt-v2v: test-v2v-oa-option.sh: output is not preallocated

[Kevin Locke]

Hi All,

Thanks to your previous assistance, I'm able to compile virt-v2v
1.42.0 on Debian testing.  However, when I run `make check`
tests/test-v2v-oa-option.sh fails with the following log:

-8<------------------------------------------------------------------
test-v2v-oa-option.sh: info: you can skip this test by setting SKIP_TEST_V2V_OA_OPTION_SH=1
[   0.0] Opening the source -i libvirt -ic test:///home/kevin/tmp/virt-v2v/test-data/phony-guests/guests.xml windows
[   0.0] Creating an overlay to protect the source from being modified
[   0.2] Opening the overlay
[  33.6] Inspecting the overlay
[  62.1] Checking for sufficient free disk space in the guest
[  62.1] Estimating space required on target for each disk
[  62.1] Converting Microsoft Windows 7 Phony Edition to run on KVM
virt-v2v: warning: QEMU Guest Agent MSI not found on tools ISO/directory. 
You may want to install the guest agent manually after conversion.
virt-v2v: warning: there are no virtio drivers available for this version 
of Windows (6.1 i386 Client).  virt-v2v looks for drivers in 
/usr/share/virtio-win

The guest will be configured to use slower emulated devices.
virt-v2v: This guest does not have virtio drivers installed.
[  71.0] Mapping filesystem data to avoid copying unused and blank areas
[  87.7] Closing the overlay
[  88.5] Assigning disks to buses
[  88.5] Checking if the guest needs BIOS or UEFI to boot
[  88.5] Initializing the target -o local -os test-v2v-oa-option.d
[  88.5] Copying disk 1/1 to test-v2v-oa-option.d/windows-sda (qcow2)
    (0.00/100%)
    (1.50/100%)
    (3.00/100%)
    (4.50/100%)
    (6.00/100%)
    (10.50/100%)
    (15.00/100%)
    (16.49/100%)
    (17.99/100%)
    (19.49/100%)
    (20.99/100%)
    (22.49/100%)
    (26.99/100%)
    (28.49/100%)
    (38.99/100%)
    (40.49/100%)
    (46.02/100%)
    (47.52/100%)
    (49.02/100%)
    (50.52/100%)
    (52.01/100%)
    (56.51/100%)
    (61.01/100%)
    (62.51/100%)
    (64.01/100%)
    (67.01/100%)
    (68.51/100%)
    (70.01/100%)
    (74.51/100%)
    (76.01/100%)
    (86.50/100%)
    (88.00/100%)
    (94.00/100%)
    (95.50/100%)
    (97.00/100%)
    (98.50/100%)
    (100.00/100%)
    (100.00/100%)
[  88.9] Creating output metadata
[  88.9] Finishing off
./test-v2v-oa-option.sh: test failed: output is not preallocated
FAIL test-v2v-oa-option.sh (exit status: 1)
-8<------------------------------------------------------------------

For reference, the test machine is running Linux 5.7.0 and the source
is on an ext4 filesystem.  If anyone could point me in the right
direction for tracking this down, I'd appreciate it once more.

Thanks again,
Kevin