failed to create vm with "libvirt.libvirtError: virStreamSend() failed"

[Nobuto Murata]

failed to create vm.

$ uvt-kvm create foo
Warning: this CLI is experimental and may change.
Traceback (most recent call last):
  File "/usr/bin/uvt-kvm", line 597, in <module>
    main(sys.argv[1:])
  File "/usr/bin/uvt-kvm", line 593, in main
    args.func(parser, args)
  File "/usr/bin/uvt-kvm", line 436, in main_create
    unsafe_caching=args.unsafe_caching,
  File "/usr/bin/uvt-kvm", line 308, in create
    "%s-ds.qcow" % hostname, hostname, user_data_fobj)
  File "/usr/bin/uvt-kvm", line 164, in create_ds_volume
    new_volume_name, f, pool_name=POOL_NAME)
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/__init__.py", line 67, in create_volume_from_fobj
    pool_name=pool_name
  File "/usr/lib/python2.7/dist-packages/uvtool/libvirt/__init__.py", line 96, in _create_volume_from_fobj_with_size
    stream.sendAll(handler, None)
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 4769, in sendAll
    ret = self.send(got)
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 4806, in send
    if ret == -1: raise libvirtError ('virStreamSend() failed')
libvirt.libvirtError: virStreamSend() failed

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: uvtool-libvirt 0~bzr66-0ubuntu1 [modified: usr/share/uvtool/libvirt/template.xml]
ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8
Uname: Linux 3.13.0-4-generic x86_64
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jan 20 00:01:26 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-10-15 (96 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20131014)
PackageArchitecture: all
SourcePackage: uvtool
UpgradeStatus: No upgrade log present (probably fresh install)

[Nobuto Murata (nobuto)]

After bisecting packages, it seems to be caused by upgrading python-libvirt from 1.2.0-2ubuntu1 to 1.2.1-0ubuntu1.

[Robie Basak (racb)]

Reproduced, thanks. This makes uvtool completely unusable.

[Robie Basak (racb)]

This is an upstream regression in libvirt-python.

[Robie (robie-redhat-bugs)]

Created attachment 854371
Fix caller to match callee prototype

I don't see a libvirt-python component, so filing this under libvirt.

Description of problem:

Version-Release number of selected component (if applicable):

git master: de8361627c4f3fa2a1f8dd164ef80c5f0a6a17f6

How reproducible:

100%

Steps to Reproduce:

0. Assuming you start with a volume pool defined called 'default' with no volumes defined in it.

1. virsh vol-create-as default foo 1048576 --format raw

2. In Python:

conn = libvirt.open('qemu:///system')
pool = libvirt_conn.storagePoolLookupByName('default')
vol = pool.storageVolLookupByName('foo')
stream = conn.newStream(0)
vol.upload(stream, 0, 1048576, 0)
stream.send('A' * 65536)

Actual results:

libvirt.libvirtError: virStreamSend() failed

Expected results:

Silent success.

Additional info:

Impact: stops the Python binding from being able to upload volumes to libvirt completely.

Regression caused by commit d40861. Patch attached.

[Daniel (daniel-redhat-bugs)]

https://www.redhat.com/archives/libvir-list/2014-January/msg01113.html

[Launchpad Janitor (janitor)]

This bug was fixed in the package libvirt-python - 1.2.1-0ubuntu2

---------------
libvirt-python (1.2.1-0ubuntu2) trusty; urgency=medium

  * d/p/virStream-send-regression: fix regression in send function
    (LP: #1270588).
 -- Robie Basak <email address hidden> Thu, 23 Jan 2014 13:05:33 +0000

[Daniel (daniel-redhat-bugs)]

Changing component, since bz admins have created libvirt-python now