[Pkg-libvirt-maintainers] Bug#720204: libvirt-bin: Error starting domain: internal error: Missing '/' separator in cgroup mount ''

[Eric Lin]

Package: libvirt-bin
Version: 1.1.1-1
Severity: important

Hi,

I'm currently unable to start/create a QEMU or a LXC virtual machine. By
unmounting /sys/fs/cgroup, I am able to start QEMU virtual machines, but
not LXC virtual machines. Thus, I cannot manage LXC containers via
libvirt.  However, I am able to start/use LXC containers via LXC userspace
tools.  Unsure whether this bug is related to #707201.


In virsh I do the following:

virsh # connect qemu:///system
virsh # start freepbx

and get:
error: Failed to start domain freepbx
error: internal error: Missing '/' separator in cgroup mount ''


Trying to start from virt-manager gives the following backtrace:

Error starting domain: internal error: Missing '/' separator in cgroup
mount ''

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 96, in
cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 117, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/domain.py", line 1160, in
startup
    self._backend.create()
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 698, in create
    if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: internal error: Missing '/' separator in cgroup mount ''

Regards, Eric Lin



-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (700, 'unstable'), (600, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.10-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libvirt-bin depends on:
ii  adduser              3.113+nmu3
ii  gettext-base         0.18.3.1-1
ii  init-system-helpers  1.8
ii  libaudit0            1:1.7.18-1.1
ii  libavahi-client3     0.6.31-2
ii  libavahi-common3     0.6.31-2
ii  libblkid1            2.20.1-5.5
ii  libc6                2.17-92
ii  libcap-ng0           0.7.3-1+b1
ii  libdbus-1-3          1.6.12-1
ii  libdevmapper1.02.1   2:1.02.77-5
ii  libgcrypt11          1.5.3-1
ii  libgnutls26          2.12.23-5
ii  libnetcf1            1:0.2.3-3
ii  libnl-3-200          3.2.21-1
ii  libnl-route-3-200    3.2.21-1
ii  libnuma1             2.0.8-3
ii  libparted0debian1    2.3-15
ii  libpcap0.8           1.4.0-2
ii  libpciaccess0        0.13.2-1
ii  libreadline6         6.2+dfsg-0.1
ii  libsasl2-2           2.1.25.dfsg1-14
ii  libudev0             175-7.2
ii  libvirt0             1.1.1-1
ii  libxenstore3.0       4.2.2-1
ii  libxml2              2.9.1+dfsg1-3
ii  libyajl2             2.0.4-4
ii  logrotate            3.8.5-1

Versions of packages libvirt-bin recommends:
ii  bridge-utils                1.5-6
ii  dmidecode                   2.12-2
pn  dnsmasq-base                <none>
pn  ebtables                    <none>
ii  gawk                        1:4.0.1+dfsg-2.1
ii  iproute                     1:3.10.0-1
ii  iptables                    1.4.20-2
pn  libxml2-utils               <none>
pn  netcat-openbsd              <none>
ii  parted                      2.3-15
ii  pm-utils                    1.4.1-11
ii  qemu                        1.5.0+dfsg-5
ii  qemu-system-x86 [qemu-kvm]  1.5.0+dfsg-5

Versions of packages libvirt-bin suggests:
pn  auditd       <none>
ii  policykit-1  0.105-3
pn  radvd        <none>
pn  systemtap    <none>

-- Configuration Files:
/etc/libvirt/qemu.conf [Errno 13] Permission denied:
u'/etc/libvirt/qemu.conf'

-- no debconf information
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