On Wed, Nov 12, 2014 at 6:56 AM, Jim Fehlig <jfehlig@xxxxxxxx> wrote: > Konrad Rzeszutek Wilk wrote: >> 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 >>> > > FYI, log level 4 is the default, so this doesn't change anything. You > probably want debug log level (log_level = 1). > Hi all, OK. I've changed to log_level to 1 (DEBUG) > > What version of libvirt? You might need > > http://libvirt.org/git/?p=libvirt.git;a=commit;h=48d81cef3b2dff6fe02bd7c8f0bf4f5aff917d8c > > which is in libvirt 1.2.6. > Ah, this also explains why if I turn to use the old xend toolstack in place of XL, libvirt works correctly. So, the problem is in the libxl driver of libvirt I have version 1.1.3.6-1.fc20 (i.e., the one shipped with Fedora 20) >> >>> 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'/> >> > > If you don't have the above patch, use <driver name='qemu'/> to > explicitly request qdisk. I've change the XML and replaced <driver name='file'/> with the above element for both the 'disk' and the 'cdrom' devices: <devices> <disk type='file' device='disk'> <!-- <driver name='file'/> --> <driver name='qemu'/> <source file='/root/images/testvm.img'/> <target dev='hda' bus='ide'/> </disk> <disk type='file' device='cdrom'> <!-- <driver name='file'/> --> <driver name='qemu'/> <source file='/root/iso/CentOS-7.0-1406-x86_64-Minimal.iso'/> <target dev='hdc' bus='ide'/> <readonly/> </disk> ... </devices> Then rebooted and created the VM with virsh. Still fail. Here's what I got. $ virsh create testvm.xml error: Failed to create domain from testvm.xml error: internal error: libxenlight failed to create new domain 'testvm' cat /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 0x7fb67c0027a0: create: how=(nil) callback=(nil) poller=0x7fb67c002370 libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hda spec.backend=qdisk libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hdc spec.backend=qdisk libxl: debug: libxl_create.c:699:initiate_domain_create: running bootloader libxl: debug: libxl_bootloader.c:321:libxl__bootloader_run: not a PV domain, skipping bootloader libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch w=0x7fb67c002b28: deregister unregistered libxl: debug: libxl_numa.c:478:libxl__get_numa_candidate: New best NUMA placement candidate found: nr_nodes=1, nr_cpus=8, nr_vcpus=17, free_memkb=2699 libxl: detail: libxl_dom.c:195:numa_place_domain: NUMA placement candidate with 1 nodes, 8 cpus and 2699 KB free selected xc: detail: elf_parse_binary: phdr: paddr=0x100000 memsz=0xa2304 xc: detail: elf_parse_binary: memory: 0x100000 -> 0x1a2304 xc: info: VIRTUAL MEMORY ARRANGEMENT: Loader: 0000000000100000->00000000001a2304 Modules: 0000000000000000->0000000000000000 TOTAL: 0000000000000000->00000000bf800000 ENTRY ADDRESS: 0000000000100000 xc: info: PHYSICAL MEMORY ALLOCATION: 4KB PAGES: 0x0000000000000200 2MB PAGES: 0x00000000000003fb 1GB PAGES: 0x0000000000000001 xc: detail: elf_load_binary: phdr 0 at 0x7fb6a7b13000 -> 0x7fb6a7bac18d libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hda spec.backend=qdisk libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hdc spec.backend=qdisk libxl: debug: libxl_dm.c:1211:libxl__spawn_local_dm: Spawning device-model /usr/lib/xen/bin/qemu-dm with arguments: libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: /usr/lib/xen/bin/qemu-dm libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -d libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: 2 libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -domain-name libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: testvm libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -vnc libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: 127.0.0.1:0 libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -videoram libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: 8 libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -boot libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: cc libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -vcpu_avail libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: 0x01 libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -net libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: none libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: -M libxl: debug: libxl_dm.c:1213:libxl__spawn_local_dm: xenfv libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch w=0x7fb67c002d60 wpath=/local/domain/0/device-model/2/state token=3/0: register slotnum=3 libxl: debug: libxl_create.c:1256:do_domain_create: ao 0x7fb67c0027a0: inprogress: poller=0x7fb67c002370, flags=i libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x7fb67c002d60 wpath=/local/domain/0/device-model/2/state token=3/0: event epath=/local/domain/0/device-model/2/state libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch w=0x7fb67c002d60 wpath=/local/domain/0/device-model/2/state token=3/0: deregister slotnum=3 libxl: error: libxl_dm.c:1280:device_model_spawn_outcome: domain 2 device model: spawn failed (rc=-3) libxl: error: libxl_create.c:1088:domcreate_devmodel_started: device model did not start: -3 libxl: error: libxl_dm.c:1311:libxl__destroy_device_model: Device Model already exited libxl: debug: libxl_event.c:1569:libxl__ao_complete: ao 0x7fb67c0027a0: complete, rc=-3 libxl: debug: libxl_event.c:1541:libxl__ao__destroy: ao 0x7fb67c0027a0: destroy Cheers, -- Marco -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen
