On Thu, Nov 13, 2014 at 9:49 AM, Marco Guazzone
<marco.guazz...@gmail.com> wrote:
> On Thu, Nov 13, 2014 at 1:08 AM, Jim Fehlig <jfeh...@suse.com> wrote:
>>
>> Can you provide
>>
>
> Sure!
>
>> 1. the config you use with xl
>
> name = "testvm"
> uuid = "93f08541-bfd5-4ac4-851d-c619a4516a13"
> kernel = "/usr/lib/xen/boot/hvmloader"
> builder = "hvm"
> maxmem = 3072
> memory = 2048
> vcpus = 1
> on_crash = "restart"
> disk = [ "file:/root/images/test.img,hda,w",
> "file:/root/iso/CentOS-7.0-1406-x86_64-Minimal.iso,hdc:cdrom,r" ]
> vif = [ "bridge=xenbr0,script=vif-bridge" ]
> boot = "cd"
> sdl = 0
> vnc = 1
> vncunused = 1
> xen_platform_pci = 1
>
>
>> 2. the XML config you use with libvirt
>
> <domain type='xen'>
>   <name>testvm</name>
>   <uuid>93f08541-bfd5-4ac4-851d-c619a4516a13</uuid>
>   <memory unit='KiB'>3145728</memory>
>   <currentMemory unit='KiB'>2097152</currentMemory>
>   <vcpu placement='static'>1</vcpu>
>   <os>
>     <type arch='x86_64' machine='xenfv'>hvm</type>
>     <loader>/usr/lib/xen/boot/hvmloader</loader>
>     <boot dev='hd'/>
> <!--
>     <boot dev='hd'/>
> -->
>   </os>
>   <clock offset='variable' adjustment='0' basis='utc'/>
>   <on_poweroff>destroy</on_poweroff>
>   <on_reboot>restart</on_reboot>
>   <on_crash>restart</on_crash>
>   <devices>
>     <disk type='file' device='disk'>
> <!--
>       <driver name='file'/>
> -->
>       <driver name='qemu'/>
>       <source file='/root/images/test.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>
>     <interface type='bridge'>
>       <mac address='00:00:00:00:00:00'/>
>       <source bridge='xenbr0'/>
>       <script path='vif-bridge'/>
>     </interface>
>     <input type='mouse' bus='ps2'/>
>     <graphics type='vnc' port='-1' autoport='yes'/>
>   </devices>
> </domain>
>
>
>> 3. the qemu command line libxl generated for each case?
>
> QEMU command for "xl create testvm.cfg":
>
>  /usr/lib/xen/bin/qemu-dm -d 11 -domain-name testvm -vnc 127.0.0.1:0
> -vncunused -videoram 8 -boot cd -acpi -vcpu_avail 0x01 -net
> nic,vlan=0,macaddr=00:16:3e:5c:c2:5a,model=rtl8139 -net
> tap,vlan=0,ifname=vif11.0-emu,bridge=xenbr0,script=no,downscript=no -M
> xenfv
>
> QEMU command for "virsh create testvm.xml":
>
> /usr/lib/xen/bin/qemu-dm -d 12 -domain-name testvm -vnc 127.0.0.1:1
> -videoram 8 -boot c -vcpu_avail 0x01 -net none -M xenfv
>
>
> Thanks so much.
>
> Best,
>

Hi,

Any news?

In the meanwhile, from the qemu command above, I've noted that it
tries to boot from HD.
In fact, the conversion from Xen config file to XML missed to add a
<boot> element for cdrom (instead, it wrongly added a duplicate
element for HD).
So, I've tried to add this <boot> element, thus resulting in:

  <os>
    <type arch='x86_64' machine='xenfv'>hvm</type>
    <loader>/usr/lib/xen/boot/hvmloader</loader>
    <boot dev='hd'/>
<!--
    <boot dev='hd'/>
-->
    <boot dev='cdrom'/>
 </os>

Now, the QEMU command spawn by virsh is

/usr/lib/xen/bin/qemu-dm -d 3 -domain-name testvm -vnc 127.0.0.1:0
-videoram 8 -boot cd -vcpu_avail 0x01 -net none -M xenfv

Now, vncviewer is able to connect, I can see the CentOS initial menu,
but when I choose to start the installation the vnc window becomes
black and I can do nothing.
I've tried to start the installation in several ways, including the
basic graphics mode (VESA) or by adding the "text" parameter to the
kernel boot options.
But the result is the same.

This is the logs content

/var/log/xen/qemu-dm-testvm.log

domid: 3
-videoram option does not work with cirrus vga device model. Videoram set to 4M.
Strip off blktap sub-type prefix to /root/images/test.img (drv 'aio')
Using file /root/images/test.img in read-write mode
Strip off blktap sub-type prefix to
/root/iso/CentOS-7.0-1406-x86_64-Minimal.iso (drv 'aio')
Using file /root/iso/CentOS-7.0-1406-x86_64-Minimal.iso in read-only mode
Watching /local/domain/0/device-model/3/logdirty/cmd
Watching /local/domain/0/device-model/3/command
Watching /local/domain/3/cpu
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 93f08541-bfd5-4ac4-851d-c619a4516a13
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/3/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error.
/vm/93f08541-bfd5-4ac4-851d-c619a4516a13/vncpasswd.
medium change watch on `hdc' (index: 1):
aio:/root/iso/CentOS-7.0-1406-x86_64-Minimal.iso
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
vcpu-set: watch node error.
[xenstore_process_vcpu_set_event]: /local/domain/3/cpu has no CPU!
xs_read(/local/domain/3/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/3/log-throttling'
medium change watch on `/local/domain/3/log-throttling' - unknown
device, ignored
cirrus vga map change while on lfb mode
mapping vram to f0000000 - f0400000
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.


/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 0x7f6504176c40:
create: how=(nil) callback=(nil) poller=0x7f65041796f0
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=0x7f6504184728: deregister unregistered
libxl: debug: libxl_numa.c:478:libxl__get_numa_candidate: New best
NUMA placement candidate found: nr_nodes=2, nr_cpus=16, nr_vcpus=34,
free_memkb=3461
libxl: detail: libxl_dom.c:195:numa_place_domain: NUMA placement
candidate with 2 nodes, 16 cpus and 3461 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 0x7f6526334000 -> 0x7f65263cd18d
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:   3
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:   cd
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=0x7f6504184960 wpath=/local/domain/0/device-model/3/state token=3/0:
register slotnum=3
libxl: debug: libxl_create.c:1256:do_domain_create: ao 0x7f6504176c40:
inprogress: poller=0x7f65041796f0, flags=i
libxl: debug: libxl_event.c:503:watchfd_callback: watch
w=0x7f6504184960 wpath=/local/domain/0/device-model/3/state token=3/0:
event epath=/local/domain/0/device-model/3/state
libxl: debug: libxl_event.c:503:watchfd_callback: watch
w=0x7f6504184960 wpath=/local/domain/0/device-model/3/state token=3/0:
event epath=/local/domain/0/device-model/3/state
libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch
w=0x7f6504184960 wpath=/local/domain/0/device-model/3/state token=3/0:
deregister slotnum=3
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch
w=0x7f6504184960: deregister unregistered
libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch
w=0x7f650417e9e8 wpath=/local/domain/0/backend/vif/3/0/state
token=3/1: register slotnum=3
libxl: debug: libxl_event.c:503:watchfd_callback: watch
w=0x7f650417e9e8 wpath=/local/domain/0/backend/vif/3/0/state
token=3/1: event epath=/local/domain/0/backend/vif/3/0/state
libxl: debug: libxl_event.c:647:devstate_watch_callback: backend
/local/domain/0/backend/vif/3/0/state wanted state 2 still waiting
state 1
libxl: debug: libxl_event.c:503:watchfd_callback: watch
w=0x7f650417e9e8 wpath=/local/domain/0/backend/vif/3/0/state
token=3/1: event epath=/local/domain/0/backend/vif/3/0/state
libxl: debug: libxl_event.c:643:devstate_watch_callback: backend
/local/domain/0/backend/vif/3/0/state wanted state 2 ok
libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch
w=0x7f650417e9e8 wpath=/local/domain/0/backend/vif/3/0/state
token=3/1: deregister slotnum=3
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch
w=0x7f650417e9e8: deregister unregistered
libxl: debug: libxl_device.c:959:device_hotplug: calling hotplug
script: /etc/xen/scripts/vif-bridge online
libxl: debug: libxl_event.c:1737:libxl__ao_progress_report: ao
0x7f6504176c40: progress report: ignored
libxl: debug: libxl_event.c:1569:libxl__ao_complete: ao
0x7f6504176c40: complete, rc=0
libxl: debug: libxl_event.c:1541:libxl__ao__destroy: ao 0x7f6504176c40: destroy
libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch
w=0x7f65040cdb90 wpath=@releaseDomain token=3/2: register slotnum=3
libxl: debug: libxl_event.c:503:watchfd_callback: watch
w=0x7f65040cdb90 wpath=@releaseDomain token=3/2: event
epath=@releaseDomain
libxl: debug: libxl.c:1004:domain_death_xswatch_callback:
[evg=0x7f6504000f50:3] from domid=3 nentries=1 rc=1
libxl: debug: libxl.c:1015:domain_death_xswatch_callback:
[evg=0x7f6504000f50:3]   got=domaininfos[0] got->domain=3
libxl: debug: libxl.c:1042:domain_death_xswatch_callback:  exists
shutdown_reported=0 dominf.flags=ffff0002
libxl: debug: libxl.c:1008:domain_death_xswatch_callback: [evg=0] all reported
libxl: debug: libxl.c:1072:domain_death_xswatch_callback: domain death
search done


Cheers,

-- Marco
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