Public bug reported:

After starting up an existing VM and clicking the "Open" button, virt-
manager brings up a window that tells me that it is connecting and
crashes with this error:

[188869.300031] traps: virt-manager[9719] trap int3 ip:7f1bdb6c9241
sp:7fff572d8ab0 error:0 in libglib-2.0.so.0.5000.0[7f1bdb679000+110000]


This has never happened before until after I upgraded from Xenial to Yakkety.

System Info:

LSB Output:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.10
Release:        16.10
Codename:       yakkety

Apt-Cache Policy Output:
$ apt-cache policy virt-manager
virt-manager:
  Installed: 1:1.3.2-3ubuntu3
  Candidate: 1:1.3.2-3ubuntu3
  Version table:
 *** 1:1.3.2-3ubuntu3 500
        500 http://mirrors.advancedhosters.com/ubuntu yakkety/universe amd64 
Packages
        500 http://mirrors.advancedhosters.com/ubuntu yakkety/universe i386 
Packages
        100 /var/lib/dpkg/status

Expected to Happen:
I expected to see the VM being displayed in front of me.

What happened instead:
The VM window appeared and suddenly disappeared.


Debug Info:

$ virt-manager --debug
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (cli:256) Launched with 
command line: /usr/share/virt-manager/virt-manager --debug
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (virt-manager:143) 
virt-manager version: 1.3.2
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (virt-manager:144) 
virtManager import: <module 'virtManager' from 
'/usr/share/virt-manager/virtManager/__init__.pyc'>
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (virt-manager:203) GTK 
version: 3.20.9
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (engine:496) libguestfs 
inspection support: False
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (systray:72) Using 
AppIndicator3 for systray
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (systray:154) Showing 
systray: False
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (engine:1031) processing 
cli command uri= show_window= domain=
[Fri, 25 Nov 2016 19:10:13 virt-manager 9786] DEBUG (engine:1033) No cli action 
requested, launching default window
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (manager:203) Showing 
manager
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (engine:401) window counter 
incremented to 1
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (engine:161) Loading stored 
URIs:
qemu:///system
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (engine:140) Initial 
gtkapplication activated
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:568) 
conn=qemu:///system changed to state=Connecting
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:887) Scheduling 
background open thread for qemu:///system
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:936) libvirt 
version=2001000
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:938) daemon 
version=2001000
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:939) conn 
version=2006001
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:941) 
qemu:///system capabilities:
<capabilities>

  <host>
    <uuid>44454c4c-5300-1042-8047-c8c04f304c31</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>Penryn</model>
      <vendor>Intel</vendor>
      <topology sockets="1" cores="2" threads="1"/>
      <feature name="vme"/>
      <feature name="ds"/>
      <feature name="acpi"/>
      <feature name="ss"/>
      <feature name="ht"/>
      <feature name="tm"/>
      <feature name="pbe"/>
      <feature name="dtes64"/>
      <feature name="monitor"/>
      <feature name="ds_cpl"/>
      <feature name="vmx"/>
      <feature name="est"/>
      <feature name="tm2"/>
      <feature name="xtpr"/>
      <feature name="pdcm"/>
      <feature name="xsave"/>
      <feature name="osxsave"/>
      <pages unit="KiB" size="4"/>
      <pages unit="KiB" size="2048"/>
    </cpu>
    <power_management>
      <suspend_mem/>
      <suspend_disk/>
      <suspend_hybrid/>
    </power_management>
    <migration_features>
      <live/>
      <uri_transports>
        <uri_transport>tcp</uri_transport>
        <uri_transport>rdma</uri_transport>
      </uri_transports>
    </migration_features>
    <topology>
      <cells num="1">
        <cell id="0">
          <memory unit="KiB">3879360</memory>
          <pages unit="KiB" size="4">969840</pages>
          <pages unit="KiB" size="2048">0</pages>
          <distances>
            <sibling id="0" value="10"/>
          </distances>
          <cpus num="2">
            <cpu id="0" socket_id="0" core_id="0" siblings="0"/>
            <cpu id="1" socket_id="0" core_id="1" siblings="1"/>
          </cpus>
        </cell>
      </cells>
    </topology>
    <secmodel>
      <model>apparmor</model>
      <doi>0</doi>
    </secmodel>
    <secmodel>
      <model>dac</model>
      <doi>0</doi>
      <baselabel type="kvm">+111:+118</baselabel>
      <baselabel type="qemu">+111:+118</baselabel>
    </secmodel>
  </host>

  <guest>
    <os_type>hvm</os_type>
    <arch name="i686">
      <wordsize>32</wordsize>
      <emulator>/usr/bin/qemu-system-i386</emulator>
      <machine maxCpus="255">pc-i440fx-yakkety</machine>
      <machine canonical="pc-i440fx-yakkety" maxCpus="255">ubuntu</machine>
      <machine maxCpus="255">pc-0.12</machine>
      <machine maxCpus="255">pc-i440fx-xenial</machine>
      <machine maxCpus="255">pc-i440fx-2.4</machine>
      <machine maxCpus="255">pc-1.3</machine>
      <machine maxCpus="255">pc-q35-2.6</machine>
      <machine canonical="pc-q35-2.6" maxCpus="255">q35</machine>
      <machine maxCpus="1">xenpv</machine>
      <machine maxCpus="255">pc-i440fx-1.7</machine>
      <machine maxCpus="255">pc-i440fx-1.6</machine>
      <machine maxCpus="255">pc-0.11</machine>
      <machine maxCpus="255">pc-q35-xenial</machine>
      <machine maxCpus="255">pc-i440fx-2.3</machine>
      <machine maxCpus="255">pc-0.10</machine>
      <machine maxCpus="255">pc-1.2</machine>
      <machine maxCpus="255">pc-i440fx-trusty</machine>
      <machine maxCpus="255">pc-i440fx-2.2</machine>
      <machine maxCpus="1">isapc</machine>
      <machine maxCpus="255">pc-q35-2.5</machine>
      <machine maxCpus="255">pc-i440fx-wily</machine>
      <machine maxCpus="128">xenfv</machine>
      <machine maxCpus="255">pc-0.15</machine>
      <machine maxCpus="255">pc-0.14</machine>
      <machine maxCpus="255">pc-i440fx-1.5</machine>
      <machine maxCpus="255">pc-i440fx-2.6</machine>
      <machine canonical="pc-i440fx-2.6" maxCpus="255">pc</machine>
      <machine maxCpus="255">pc-i440fx-1.4</machine>
      <machine maxCpus="255">pc-i440fx-2.5</machine>
      <machine maxCpus="255">pc-1.1</machine>
      <machine maxCpus="255">pc-q35-yakkety</machine>
      <machine maxCpus="255">pc-i440fx-2.1</machine>
      <machine maxCpus="255">pc-1.0</machine>
      <machine maxCpus="255">pc-i440fx-2.0</machine>
      <machine maxCpus="255">pc-q35-2.4</machine>
      <machine maxCpus="255">pc-0.13</machine>
      <domain type="qemu">
        <emulator>/usr/bin/qemu-system-i386</emulator>
      </domain>
      <domain type="kvm">
        <emulator>/usr/bin/kvm-spice</emulator>
        <machine maxCpus="255">pc-i440fx-yakkety</machine>
        <machine canonical="pc-i440fx-yakkety" maxCpus="255">ubuntu</machine>
        <machine maxCpus="255">pc-0.12</machine>
        <machine maxCpus="255">pc-i440fx-xenial</machine>
        <machine maxCpus="255">pc-i440fx-2.4</machine>
        <machine maxCpus="255">pc-1.3</machine>
        <machine maxCpus="255">pc-q35-2.6</machine>
        <machine canonical="pc-q35-2.6" maxCpus="255">q35</machine>
        <machine maxCpus="1">xenpv</machine>
        <machine maxCpus="255">pc-i440fx-1.7</machine>
        <machine maxCpus="255">pc-i440fx-1.6</machine>
        <machine maxCpus="255">pc-0.11</machine>
        <machine maxCpus="255">pc-q35-xenial</machine>
        <machine maxCpus="255">pc-i440fx-2.3</machine>
        <machine maxCpus="255">pc-0.10</machine>
        <machine maxCpus="255">pc-1.2</machine>
        <machine maxCpus="255">pc-i440fx-trusty</machine>
        <machine maxCpus="255">pc-i440fx-2.2</machine>
        <machine maxCpus="1">isapc</machine>
        <machine maxCpus="255">pc-q35-2.5</machine>
        <machine maxCpus="255">pc-i440fx-wily</machine>
        <machine maxCpus="128">xenfv</machine>
        <machine maxCpus="255">pc-0.15</machine>
        <machine maxCpus="255">pc-0.14</machine>
        <machine maxCpus="255">pc-i440fx-1.5</machine>
        <machine maxCpus="255">pc-i440fx-2.6</machine>
        <machine canonical="pc-i440fx-2.6" maxCpus="255">pc</machine>
        <machine maxCpus="255">pc-i440fx-1.4</machine>
        <machine maxCpus="255">pc-i440fx-2.5</machine>
        <machine maxCpus="255">pc-1.1</machine>
        <machine maxCpus="255">pc-q35-yakkety</machine>
        <machine maxCpus="255">pc-i440fx-2.1</machine>
        <machine maxCpus="255">pc-1.0</machine>
        <machine maxCpus="255">pc-i440fx-2.0</machine>
        <machine maxCpus="255">pc-q35-2.4</machine>
        <machine maxCpus="255">pc-0.13</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default="on" toggle="no"/>
      <acpi default="on" toggle="yes"/>
      <apic default="on" toggle="no"/>
      <pae/>
      <nonpae/>
    </features>
  </guest>

  <guest>
    <os_type>hvm</os_type>
    <arch name="x86_64">
      <wordsize>64</wordsize>
      <emulator>/usr/bin/qemu-system-x86_64</emulator>
      <machine maxCpus="255">pc-i440fx-yakkety</machine>
      <machine canonical="pc-i440fx-yakkety" maxCpus="255">ubuntu</machine>
      <machine maxCpus="255">pc-0.12</machine>
      <machine maxCpus="255">pc-i440fx-xenial</machine>
      <machine maxCpus="255">pc-i440fx-2.4</machine>
      <machine maxCpus="255">pc-1.3</machine>
      <machine maxCpus="255">pc-q35-2.6</machine>
      <machine canonical="pc-q35-2.6" maxCpus="255">q35</machine>
      <machine maxCpus="1">xenpv</machine>
      <machine maxCpus="255">pc-i440fx-1.7</machine>
      <machine maxCpus="255">pc-i440fx-1.6</machine>
      <machine maxCpus="255">pc-0.11</machine>
      <machine maxCpus="255">pc-q35-xenial</machine>
      <machine maxCpus="255">pc-i440fx-2.3</machine>
      <machine maxCpus="255">pc-0.10</machine>
      <machine maxCpus="255">pc-1.2</machine>
      <machine maxCpus="255">pc-i440fx-trusty</machine>
      <machine maxCpus="255">pc-i440fx-2.2</machine>
      <machine maxCpus="1">isapc</machine>
      <machine maxCpus="255">pc-q35-2.5</machine>
      <machine maxCpus="255">pc-i440fx-wily</machine>
      <machine maxCpus="128">xenfv</machine>
      <machine maxCpus="255">pc-0.15</machine>
      <machine maxCpus="255">pc-0.14</machine>
      <machine maxCpus="255">pc-i440fx-1.5</machine>
      <machine maxCpus="255">pc-i440fx-2.6</machine>
      <machine canonical="pc-i440fx-2.6" maxCpus="255">pc</machine>
      <machine maxCpus="255">pc-i440fx-1.4</machine>
      <machine maxCpus="255">pc-i440fx-2.5</machine>
      <machine maxCpus="255">pc-1.1</machine>
      <machine maxCpus="255">pc-q35-yakkety</machine>
      <machine maxCpus="255">pc-i440fx-2.1</machine>
      <machine maxCpus="255">pc-1.0</machine>
      <machine maxCpus="255">pc-i440fx-2.0</machine>
      <machine maxCpus="255">pc-q35-2.4</machine>
      <machine maxCpus="255">pc-0.13</machine>
      <domain type="qemu">
        <emulator>/usr/bin/qemu-system-x86_64</emulator>
      </domain>
      <domain type="kvm">
        <emulator>/usr/bin/kvm-spice</emulator>
        <machine maxCpus="255">pc-i440fx-yakkety</machine>
        <machine canonical="pc-i440fx-yakkety" maxCpus="255">ubuntu</machine>
        <machine maxCpus="255">pc-0.12</machine>
        <machine maxCpus="255">pc-i440fx-xenial</machine>
        <machine maxCpus="255">pc-i440fx-2.4</machine>
        <machine maxCpus="255">pc-1.3</machine>
        <machine maxCpus="255">pc-q35-2.6</machine>
        <machine canonical="pc-q35-2.6" maxCpus="255">q35</machine>
        <machine maxCpus="1">xenpv</machine>
        <machine maxCpus="255">pc-i440fx-1.7</machine>
        <machine maxCpus="255">pc-i440fx-1.6</machine>
        <machine maxCpus="255">pc-0.11</machine>
        <machine maxCpus="255">pc-q35-xenial</machine>
        <machine maxCpus="255">pc-i440fx-2.3</machine>
        <machine maxCpus="255">pc-0.10</machine>
        <machine maxCpus="255">pc-1.2</machine>
        <machine maxCpus="255">pc-i440fx-trusty</machine>
        <machine maxCpus="255">pc-i440fx-2.2</machine>
        <machine maxCpus="1">isapc</machine>
        <machine maxCpus="255">pc-q35-2.5</machine>
        <machine maxCpus="255">pc-i440fx-wily</machine>
        <machine maxCpus="128">xenfv</machine>
        <machine maxCpus="255">pc-0.15</machine>
        <machine maxCpus="255">pc-0.14</machine>
        <machine maxCpus="255">pc-i440fx-1.5</machine>
        <machine maxCpus="255">pc-i440fx-2.6</machine>
        <machine canonical="pc-i440fx-2.6" maxCpus="255">pc</machine>
        <machine maxCpus="255">pc-i440fx-1.4</machine>
        <machine maxCpus="255">pc-i440fx-2.5</machine>
        <machine maxCpus="255">pc-1.1</machine>
        <machine maxCpus="255">pc-q35-yakkety</machine>
        <machine maxCpus="255">pc-i440fx-2.1</machine>
        <machine maxCpus="255">pc-1.0</machine>
        <machine maxCpus="255">pc-i440fx-2.0</machine>
        <machine maxCpus="255">pc-q35-2.4</machine>
        <machine maxCpus="255">pc-0.13</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default="on" toggle="no"/>
      <acpi default="on" toggle="yes"/>
      <apic default="on" toggle="no"/>
    </features>
  </guest>

</capabilities>

[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:789) Using 
domain events
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:826) Using 
network events
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
network=default status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
interface=lo status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
interface=enp0s25 status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=debian-xfce status=Shutoff added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=Dean-Xubuntu status=Running added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
pool=default status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=Ubuntu-MATE status=Shutoff added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=win7 status=Shutoff added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=Windows10 status=Shutoff added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
pool=ISO_Files status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) 
domain=Dean-WinXP status=Running added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:1050) pool=Main 
status=Active added
[Fri, 25 Nov 2016 19:10:14 virt-manager 9786] DEBUG (connection:568) 
conn=qemu:///system changed to state=Active
[Fri, 25 Nov 2016 19:10:20 virt-manager 9786] DEBUG (details:609) Showing VM 
details: <domain.vmmDomain object at 0x7f4311dcc9b0 
(virtManager+domain+vmmDomain at 0x5647468d6b60)>
[Fri, 25 Nov 2016 19:10:20 virt-manager 9786] DEBUG (engine:401) window counter 
incremented to 2
[Fri, 25 Nov 2016 19:10:20 virt-manager 9786] DEBUG (console:667) Starting 
connect process for proto=spice trans= connhost=127.0.0.1 connuser= connport= 
gaddr=0.0.0.0 gport=5901 gtlsport=None gsocket=None

(virt-manager:9786): GSpice-WARNING **: PulseAudio context failed
Connection refused

(virt-manager:9786): GSpice-WARNING **: pa_context_connect() failed:
Connection refused

(virt-manager:9786): GSpice-WARNING **: PulseAudio context failed
Connection refused

(virt-manager:9786): GSpice-WARNING **: pa_context_connect() failed: Connection 
refused
[Fri, 25 Nov 2016 19:10:20 virt-manager 9786] DEBUG (console:790) Viewer 
connected
libEGL warning: DRI2: failed to authenticate

(virt-manager:9786): Gdk-ERROR **: The program 'virt-manager' received an X 
Window System error.
This probably reflects a bug in the program.
The error was 'BadRequest (invalid request code or no such operation)'.
  (Details: serial 3343 error_code 1 request_code 154 (unknown) minor_code 1)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)

** Affects: virt-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1644941

Title:
  Virt-Manager Crashes while showing VM after yakkety

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