Re: [with libvirt/qemu git] invoking 'qemu-system-x86_64' fails w/: -netdev bridge, br=virbr0, id=hostnet0 Device 'bridge' could not be initialized"

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On 10/06/2012 06:13 PM, Kashyap Chamarthy wrote:
> On 10/06/2012 06:08 PM, Kashyap Chamarthy wrote:
>> Hi,
>>
>> I'm on latest master, w/ Eric's block-commit patches applied
>> ===========================================================
>> [kashyap@moon libvirt-k]$ git status
>> # On branch master
>> # Your branch is ahead of 'origin/master' by 2 commits.
>> #
>> nothing to commit (working directory clean)
>> [kashyap@moon libvirt-k]$
>> ===========================================================
>> [kashyap@moon libvirt-k]$ # ./autogen.sh ; make -j5 ; make check
>> ===========================================================
>>
>>
>> Now, then define an xml [see complete xml at the bottom]
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ ./run ./tools/virsh define /var/tmp/f17-base.xml
>> Domain f17-base defined from /var/tmp/f17-base.xml
>> #-----------------------------------------------------------#
>>
>> Try to start the guest now:
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ ./run ./tools/virsh start f17-base
>> error: Failed to start domain f17-base
>> error: internal error Process exited while reading console log output: char device
>> redirected to /dev/pts/6
>> failed to launch bridge helper
>> qemu-system-x86_64: -netdev bridge,br=virbr0,id=hostnet0: Device 'bridge' could not be
>> initialized
>>
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>>
>> The emulator is pointed to latest qemu-system-x86_64 compiled from latest qemu-git
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ egrep -i 'emulator|bridge' /var/tmp/f17-base.xml
>>     <emulator>/home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64</emulator>
>>     <interface type='bridge'>
>>       <source bridge='virbr0'/>
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ brctl show
>> bridge name     bridge id               STP enabled     interfaces
>> br0             8000.00215e6fb9f4       no              eth0
>> virbr0          8000.525400573710       yes             virbr0-nic
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ ./run ./tools/virsh version
>> Compiled against library: libvirt 0.10.2
>> Using library: libvirt 0.10.2
>> Using API: QEMU 0.10.2
>> Cannot extract running QEMU hypervisor version
>>
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ ps -ef | grep libvirtd
>> kashyap   2277     1  2 17:07 ?        00:00:00
>> /home/kashyap/projects/libvirt-k/daemon/.libs/lt-libvirtd --timeout=30
>> kashyap   2392 11303  0 17:07 pts/15   00:00:00 grep --color=auto libvirtd
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>>
>>
>> That's what I see in the local log file:
>> #-----------------------------------------------------------#
>> [kashyap@moon libvirt-k]$ cat ~/.cache/libvirt/qemu/log/f17-base.log
>> 2012-10-06 11:37:41.155+0000: starting up
>> LC_ALL=C LD_LIBRARY_PATH=/home/kashyap/projects/libvirt-k/src/.libs
>> PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/kashyap/.local/bin:/home/kashyap/bin:/home/kashyap/.local/bin:/home/kashyap/bin
>> HOME=/home/kashyap USER=kashyap LOGNAME=kashyap
>> /home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64 -name f17-base -S -M pc-1.2
>> -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -uuid
>> 8d54ced1-2662-bcae-0804-d4a3e65e9ff6 -nographic -no-user-config -nodefaults -chardev
>> socket,id=charmonitor,path=/home/kashyap/.config/libvirt/qemu/lib/f17-base.monitor,server,nowait
>> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -device
>> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
>> file=/var/lib/libvirt/images/f17-base.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none
>> -device
>> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
>> -netdev bridge,br=virbr0,id=hostnet0 -device
>> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:51:00:a9:f1:7f,bus=pci.0,addr=0x3 -chardev
>> pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device
>> usb-tablet,id=input0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
>> char device redirected to /dev/pts/6
>> failed to launch bridge helper
>> qemu-system-x86_64: -netdev bridge,br=virbr0,id=hostnet0: Device 'bridge' could not be
>> initialized
>> 2012-10-06 11:37:41.281+0000: shutting down
>> [kashyap@moon libvirt-k]$
>> #-----------------------------------------------------------#
>>
>>
>> And that's the xml file:
>> #-----------------------------------------------------------#
>>
>> <domain type='kvm'>
>>   <name>f17-base</name>
>>   <uuid>8d54ced1-2662-bcae-0804-d4a3e65e9ff6</uuid>
>>   <memory unit='KiB'>2097152</memory>
>>   <currentMemory unit='KiB'>2097152</currentMemory>
>>   <vcpu placement='static'>2</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>/home/kashyap/projects/qemu/x86_64-softmmu/qemu-system-x86_64</emulator>
>>     <disk type='file' device='disk'>
>>       <driver name='qemu' type='qcow2' cache='none'/>
>>       <source file='/var/lib/libvirt/images/f17-base.qcow2'/>
>>       <target dev='vda' bus='virtio'/>
>>       <address type='pci' domain='0x0000' bus='0x00' slot='0x04' 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='52:51:00:a9:f1:7f'/>
>>       <source bridge='br0'/>
> 
> (that's a typo there -- it's 'virbr0'  (but I tried with both 'virbr0' and an actual
> bridge on the system 'br0', to no avail)
> 
>>       <model type='virtio'/>
>>       <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='tablet' bus='usb'/>
>>     <memballoon model='virtio'>
>>       <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
>>     </memballoon>
>>   </devices>
>> </domain>
>> #-----------------------------------------------------------#
>>
>>
>> Other notes: Rich Jones suggested me to do a build dep for qemu & re-try
>> [kashyap@moon qemu]$ yum-builddep qemu
>> [kashyap@moon qemu]$  ./configure --target-list=x86_64-softmmu --disable-werror ; make -j5
>>  and re-configure qemu.
>>
>> And still no dice, I see the same 'bridge' could not be initialized
>>
>> Any hints here?

I'm proceeding testing  w/  'make -j5 rpm' (w/ a bump in release version of the specfile,
so that it'll upgrade current rpms on the dev machine smoothly)

Thanks Laine.
>>
> 
> 


-- 
/kashyap

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