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Re: [libvirt] [Qemu-trivial] do_spice_init error on Ubuntu11.10



On Thu, Mar 08, 2012 at 11:29:48AM +0800, suyi wang wrote:
> Hi all:

Hi Suyi,
qemu-trivial is a mailing list for QEMU patches, questions should be
directed at the regular QEMU mailing list.  I have CCed qemu-devel and
libvirt-list so your question will go to the QEMU and libvirt
communities.

Are you sure your libvirt configuration allows the QEMU process to
access /dev/shm?  You may have SELinux enabled.

Stefan

> I tried kvm on my ubuntu  with the libvirt.xml file as follows:
>    <domain type='kvm'>
>        <name>instance-00000011</
> name>
>        <memory>2097152</memory>
>        <os>
>                <type>hvm</type>
>                <boot dev="hd" />
>        </os>
>        <features>
>            <acpi/>
>        </features>
>        <vcpu>1</vcpu>
>        <devices>
>        <sound model='ac97'/>
>        <input type='tablet' bus='usb'/>
>            <disk type='file'>
>                <driver type='qcow2'/>
>                <source
>    file='/opt/stack/nova/nova/../
> /instances/instance-00000011/disk'/>
>                <target dev='vda' bus='ide'/>
>            </disk>
>                <disk type='file'>
>                    <driver type='qcow2'/>
>                    <source
> 
> - Ignored:
>    file='/opt/stack/nova/nova/..//instances/instance-00000011/disk.local'/>
>                    <target dev='vdb' bus='ide'/>
>                </disk>
> 
>            <interface type='bridge'>
>                <source bridge='br100'/>
>                <mac address='02:16:3e:44:a1:dd'/>
>                <filterref
>    filter="nova-instance-instance-00000011-02163e44a1dd">
>                    <parameter name="IP" value="10.0.0.2" />
>                    <parameter name="DHCPSERVER" value="10.0.0.1" />
>                </filterref>
>            </interface>
> 
>            <!-- The order is significant here.  File must be defined first
> -->
>            <serial type="file">
>                <source
>    path='/opt/stack/nova/nova/..//instances/instance-00000011/console.log'/>
>                <target port='1'/>
>            </serial>
> 
>            <console type='pty' tty='/dev/pts/2'>
>                <source path='/dev/pts/2'/>
>                <target port='0'/>
>            </console>
> 
>            <serial type='pty'>
>                <source path='/dev/pts/2'/>
>                <target port='0'/>
>            </serial>
> 
> 
>            <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'
>    listen='0.0.0.0'/>
> 
>        </devices>
>    </domain>
> 
>    So it works well.
> 
>    Howerver, I want change the remote access method by spice, I simply
> changed
>    the libvirt.xml as follows:
>    <domain type='kvm'>
>        <name>instance-00000011</name>
>        <memory>2097152</memory>
>        <os>
>                <type>hvm</type>
>                <boot dev="hd" />
>        </os>
>        <features>
>            <acpi/>
>        </features>
>        <vcpu>1</vcpu>
>        <devices>
>        <sound model='ac97'/>
>        <input type='tablet' bus='usb'/>
>            <disk type='file'>
>                <driver type='qcow2'/>
>                <source
>    file='/opt/stack/nova/nova/..//instances/instance-00000011/disk'/>
>                <target dev='vda' bus='ide'/>
>            </disk>
>                <disk type='file'>
>                    <driver type='qcow2'/>
>                    <source
>    file='/opt/stack/nova/nova/..//instances/instance-00000011/disk.local'/>
>                    <target dev='vdb' bus='ide'/>
>                </disk>
> 
>            <interface type='bridge'>
>                <source bridge='br100'/>
>                <mac address='02:16:3e:44:a1:dd'/>
>                <filterref
>    filter="nova-instance-instance-00000011-02163e44a1dd">
>                    <parameter name="IP" value="10.0.0.2" />
>                    <parameter name="DHCPSERVER" value="10.0.0.1" />
>                </filterref>
>            </interface>
> 
>            <!-- The order is significant here.  File must be defined first
> -->
>            <serial type="file">
>                <source
>    path='/opt/stack/nova/nova/..//instances/instance-00000011/console.log'/>
>                <target port='1'/>
>            </serial>
> 
>            <console type='pty' tty='/dev/pts/2'>
>                <source path='/dev/pts/2'/>
>                <target port='0'/>
>            </console>
> 
>            <serial type='pty'>
>                <source path='/dev/pts/2'/>
>                <target port='0'/>
>            </serial>
> 
> 
>            <graphics type='spice' port='-1' autoport='yes' keymap='en-us'
>    listen='0.0.0.0'/>
> 
>        </devices>
>    </domain>
> 
>    As you can see, I just change <graphics type='vnc' port='-1'
> autoport='yes'
>    keymap='en-us' listen='0.0.0.0'/> to <graphics type='spice' port='-1'
>    autoport='yes' keymap='en-us' listen='0.0.0.0'/>   ,   But it called the
>    error as follows:
> 
>    libvirtError: internal error Process exited while reading console log
>    output: char device redirected to /dev/pts/12
>    TRACE: do_spice_init: starting 0.8.1
>    TRACE: do_spice_init: statistics shm_open failed, Permission denied"
> 
> 
> Then I also  tried "ls -ld /dev/shm"   ,  yes, it is already  777.
> then my problem remained:
> libvirtError: internal error Process exited while reading console log
>    output: char device redirected to /dev/pts/12
>    TRACE: do_spice_init: starting 0.8.1
>    TRACE: do_spice_init: statistics shm_open failed, Permission denied"
> 
> 
>    I wish someone can give me some help! Thanks!
> 
> -- 
> Yours.
> suyi


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