On Tue, Nov 11, 2014 at 10:01:09PM +0100, Marco Guazzone wrote:
> On Tue, Nov 11, 2014 at 5:43 PM, Konrad Rzeszutek Wilk
> <konrad.wilk@xxxxxxxxxx> wrote:
> >>
> >> Renamed the bridge to 'xenbr0':
> >>
> >> xenbr0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
> >> inet 10.10.15.10 netmask 255.255.255.0 broadcast 10.10.15.255
> >> inet6 fe80::219:99ff:feef:62ab prefixlen 64 scopeid 0x20<link>
> >> ether 00:19:99:ef:62:ab txqueuelen 0 (Ethernet)
> >> RX packets 8 bytes 1144 (1.1 KiB)
> >> RX errors 0 dropped 0 overruns 0 frame 0
> >> TX packets 8 bytes 648 (648.0 B)
> >> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
> >>
> >> rebooted the machine... But same error
> >
> > I presume you also changed the entry in the xml file?
>
> Yep!
>
> <interface type='bridge'>
> <mac address='00:00:00:00:00:00'/>
> <source bridge='xenbr0'/>
> <script path='vif-bridge'/>
> </interface>
>
>
> >>
> >> Could you be more specific. Sorry, I'm not a sysadmin.
> >> I'm using Xen for research purpose
> >
> > Edit /etc/libvirt/libvirtd.conf
> >
> > and change 'log_level' to be 'log_level=4'
> >
> > and make sure that 'log_output' has '"1:syslog:libvirtd"
>
> OK. Changed /etc/libvirt/libvirtd.conf:
>
> log_level = 4
> log_outputs="1:syslog:libvirtd"
>
> Then rebooted and tried to create the VM with libvirt with virsh.
>
> This is the output of /var/log/libvirt/libxl/testvm.log
>
> libxl: verbose:
> libxl_create.c:130:libxl__domain_build_info_setdefault: qemu-xen is
> unavailable, use qemu-xen-traditional instead: No such file or
> directory
> libxl: debug: libxl_create.c:1243:do_domain_create: ao 0x7f713c002a80:
> create: how=(nil) callback=(nil) poller=0x7f713c009ee0
> libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk
> vdev=hda spec.backend=tap
Somehow it picked 'tap'.
> libxl: debug: libxl_device.c:212:disk_try_backend: Disk vdev=hda,
> backend tap unsuitable because blktap not available
Which is not available under Xen 4.4.
I am not sure why it did that as you have:
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/images/testvm.img'/>
<target dev='hda' bus='ide'/>
So there might be need to alter the guest config a bit more, but
I am not sure what needs to be done. I will see what my entry looks
like tomorrow.
Also CC-ing Jim as he might have better idea.
> libxl: error: libxl_device.c:300:libxl__device_disk_set_backend: no
> suitable backend for disk hda
> libxl: error: libxl_dm.c:1305:libxl__destroy_device_model: could not
> find device-model's pid for dom 3
> libxl: error: libxl.c:1420:libxl__destroy_domid:
> libxl__destroy_device_model failed for 3
> libxl: debug: libxl_event.c:1569:libxl__ao_complete: ao
> 0x7f713c002a80: complete, rc=-3
> libxl: debug: libxl_create.c:1256:do_domain_create: ao 0x7f713c002a80:
> inprogress: poller=0x7f713c009ee0, flags=ic
> libxl: debug: libxl_event.c:1541:libxl__ao__destroy: ao 0x7f713c002a80: destroy
>
>
> Don't know if it is OK, but the first row claims about the missing
> device model qemu-xen...
> Then there are a couple of errors about the disk device back-end and
> the device model, but honestly I have some trouble in finding a way to
> fix them
>
> In /var/log/libvirt/libxl-driver.log, there isn't nothing of interest (IMO):
>
> xc: debug: hypercall buffer: total allocations:18 total releases:18
> xc: debug: hypercall buffer: current allocations:0 maximum allocations:4
> xc: debug: hypercall buffer: cache current size:4
> xc: debug: hypercall buffer: cache hits:13 misses:4 toobig:1
>
> Cheers,
>
> -- Marco
> --
> xen mailing list
> xen@xxxxxxxxxxxxxxxxxxxxxxx
> https://admin.fedoraproject.org/mailman/listinfo/xen
--
xen mailing list
xen@xxxxxxxxxxxxxxxxxxxxxxx
https://admin.fedoraproject.org/mailman/listinfo/xen
