Latest upstream qemu.git still reproduces this, so marking it as
affecting QEMU.
** Also affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1079713
Title:
failed to set sndbuf on VMs network interface
Status in QEMU:
New
Status in “qemu-kvm” package in Ubuntu:
Confirmed
Bug description:
I am trying to set "sndbuf" for a VMs network device to "0".
I inserted to my XML file:
<tune>
<sndbuf>0</sndbuf>
</tune>
The XML file validates, but I am not able to start the virtual machine.
# virsh edit vm3
<domain type='kvm'>
<name>vm3</name>
<uuid><HIDDEN></uuid>
<memory unit='KiB'>524288</memory>
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc-1.2'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='<HIDDEN>'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</disk>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x2'/>
</controller>
<interface type='bridge'>
<mac address='<HIDDEN>'/>
<source bridge='br2'/>
<model type='virtio'/>
<tune>
<sndbuf>0</sndbuf>
</tune>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<sound model='ich6'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
</sound>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06'
function='0x0'/>
</memballoon>
</devices>
</domain>
Domain vm3 XML configuration edited.
# LANG=en_US.utf-8 virsh start vm3
error: Failed to start domain vm3
error: internal error Process exited while reading console log output: char
device redirected to /dev/pts/4
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