Re: [Libvir] Remotely starting a fully-virtualized guest

Meng Kuan wrote: > Hi, > I am trying to start a fully virtualized guest called "full1" > remotely. The connection URI I am using is "xen+ssh:// > root@dell1/". (Note that I am able to start/stop/resume/shutdown > para-virtualized guests without any problems with this connection > URI.) > The XML definition for the fully virtualized guest is this: > <domain type='xen'> > <name>full1</name> > <os> > <type>hvm</type> > <loader>/usr/lib/xen/boot/hvmloader</loader> > <boot dev='hd'/> > </os> > <memory>1048576</memory> > <vcpu>2</vcpu> > <on_poweroff>destroy</on_poweroff> > <on_reboot>restart</on_reboot> > <on_crash>restart</on_crash> > <features> > <acpi/> > <apic/> > <pae/> > </features> > <clock offset='utc'/> > <devices> > <emulator>/usr/lib64/xen/bin/qemu-dm</emulator> > <interface type='bridge'> > <source bridge='xenbr0'/> > <script path='vif-bridge'/> > </interface> > <disk type='file' device='disk'> > <driver name='file'/> > <source file='/xen/full1.img'/> > <target dev='hda'/> > </disk> > <graphics type='vnc' port='5904'/> > </devices> > </domain> > The guest failed to start up and this is what I found in the > xend.log file: > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:190) XendDomainInfo.create(['vm', ['name', 'full1'] > , ['memory', '1024'], ['maxmem', '1024'], ['vcpus', '2'], > ['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_crash > ', 'restart'], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/ > hvmloader'], ['device_model', '/usr/lib64/xen/bin/qemu-dm > '], ['vcpus', '2'], ['boot', 'c'], ['acpi', '1'], ['apic', '1'], > ['pae', '1'], ['usb', '1'], ['vnc', '1'], ['vncdisplay' > , '4']]], ['device', ['vbd', ['dev', 'hda:disk'], ['uname', 'file:/ > xen/full1.img'], ['mode', 'w']]], ['device', ['vif', > ['bridge', 'xenbr0'], ['script', 'vif-bridge'], ['type', 'ioemu']]]]) > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:296) parseConfig: config is ['vm', ['name', 'full1' > ], ['memory', '1024'], ['maxmem', '1024'], ['vcpus', '2'], > ['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_cras > h', 'restart'], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/ > hvmloader'], ['device_model', '/usr/lib64/xen/bin/qemu-d > m'], ['vcpus', '2'], ['boot', 'c'], ['acpi', '1'], ['apic', '1'], > ['pae', '1'], ['usb', '1'], ['vnc', '1'], ['vncdisplay > ', '4']]], ['device', ['vbd', ['dev', 'hda:disk'], ['uname', > 'file:/xen/full1.img'], ['mode', 'w']]], ['device', ['vif', > ['bridge', 'xenbr0'], ['script', 'vif-bridge'], ['type', 'ioemu']]]] > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:397) parseConfig: result is {'shadow_memory': None, > 'start_time': None, 'uuid': None, 'on_crash': 'restart', > 'on_reboot': 'restart', 'localtime': None, 'image': ['hvm', [' > kernel', '/usr/lib/xen/boot/hvmloader'], ['device_model', '/usr/ > lib64/xen/bin/qemu-dm'], ['vcpus', '2'], ['boot', 'c'], > ['acpi', '1'], ['apic', '1'], ['pae', '1'], ['usb', '1'], ['vnc', > '1'], ['vncdisplay', '4']], 'on_poweroff': 'destroy', > 'bootloader_args': None, 'cpus': None, 'name': 'full1', 'backend': > [], 'vcpus': 2, 'cpu_weight': None, 'features': None, > 'vcpu_avail': None, 'memory': 768, 'device': [('vbd', ['vbd', > ['dev', 'hda:disk'], ['uname', 'file:/xen/full1.img'], [' > mode', 'w']]), ('vif', ['vif', ['bridge', 'xenbr0'], ['script', > 'vif-bridge'], ['type', 'ioemu']])], 'bootloader': None, > 'cpu': None, 'maxmem': 768} > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:1264) XendDomainInfo.construct: None > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:1296) XendDomainInfo.initDomain: 91 1.0 > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: boot, val: c > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: fda, val: > None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: fdb, val: > None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: soundhw, > val: None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: localtime, > val: None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: serial, > val: None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: std-vga, > val: None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: isa, val: > None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: vcpus, val: 2 > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: acpi, val: 1 > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: usb, val: 1 > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: usbdevice, > val: None > [2007-09-24 18:55:46 xend 4176] DEBUG (image:329) args: k, val: None > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] ERROR > (XendDomainInfo:202) Domain construction failed > Traceback (most recent call last): > File "/usr/lib64/python2.4/site-packages/xen/xend/ > XendDomainInfo.py", line 195, in create > vm.initDomain() > File "/usr/lib64/python2.4/site-packages/xen/xend/ > XendDomainInfo.py", line 1309, in initDomain > self.info['device']) > File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", > line 45, in create > return findImageHandlerClass(imageConfig)(vm, imageConfig, > deviceConfig) > File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", > line 75, in __init__ > self.configure(imageConfig, deviceConfig) > File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", > line 272, in configure > self.dmargs += self.configVNC(imageConfig) > File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", > line 383, in configVNC > ret += ['-vnc', '%d' % vncdisplay] > TypeError: int argument required > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:1463) XendDomainInfo.destroy: domid=91 > [2007-09-24 18:55:46 xend.XendDomainInfo 4176] DEBUG > (XendDomainInfo:1471) XendDomainInfo.destroyDomain(91) > [2007-09-24 18:55:46 xend 4176] ERROR (SrvBase:88) Request create > failed. > Traceback (most recent call last): > File "/usr/lib64/python2.4/site-packages/xen/web/SrvBase.py", > line 85, in perform > return op_method(op, req) > File "/usr/lib64/python2.4/site-packages/xen/xend/server/ > SrvDomainDir.py", line 82, in op_create > raise XendError("Error creating domain: " + str(ex)) > XendError: Error creating domain: int argument required > It seems that xend got a string instead of an integer for the vnc > port. > I modified the file "image.py" at line 383 from this > ret += ['-vnc', '%d' % vncdisplay] > to this: > ret += ['-vnc', '%s' % vncdisplay] > Restarted xend for the change to take effect and then try starting > the guest again. This time the guest gets created but its state > does not change to "running". > # xm list > Name ID Mem(MiB) VCPUs > State Time(s) > Domain-0 0 451 2 > r----- 356.7 > full1 88 773 1 > ------ 0.0 > I removed the following vnc line from the xml definition and try > again: > <graphics type='vnc' port='5904'/> > The guest gets created but again its state is not "running". > According to xml format documentation the <graphics> tag is required. > At this point I am stumped. Any ideas what else I can try? I think this is an instance of bug: https://bugzilla.redhat.com/ show_bug.cgi?id=279581 Can you try the patch in that bug please (it fixed the problem for me).