[libvirt] libxl: cannot connect to PV console
Dario Faggioli
dario.faggioli at citrix.com
Tue Dec 17 14:12:54 UTC 2013
Hey Jim,
I'm on libvirt.git's trunk and I see the following:
[xen at ghoul3 libvirt.git]$ sudo ./tools/virsh list
Id Name State
----------------------------------------------------
3 debian_32 running
4 fedora20_64 running
[xen at ghoul3 libvirt.git]$ sudo ./tools/virsh console debian_32
Connected to domain debian_32
Escape character is ^]
error: internal error: cannot find character device (null)
[xen at ghoul3 libvirt.git]$ sudo ./tools/virsh console fedora20_64
Connected to domain fedora20_64
Escape character is ^]
error: internal error: cannot find character device (null)
And this:
[xen at ghoul3 libvirt.git]$ sudo ./daemon/libvirtd -v
[sudo] password for xen:
2013-12-17 13:19:35.366+0000: 22124: info : libvirt version: 1.2.1
2013-12-17 14:00:06.587+0000: 22122: error : libxlDomainOpenConsole:3885 : internal error: cannot find character device (null)
2013-12-17 14:00:15.705+0000: 22125: error : libxlDomainOpenConsole:3885 : internal error: cannot find character device (null)
What I have in /var/log/libvirt/libxl does not look useful, while below
it comes my xenstore-ls.
What is it that is going wrong?
[xen at ghoul3 libvirt.git]$ sudo xenstore-ls
tool = ""
xenstored = ""
local = ""
domain = ""
0 = ""
name = "Domain-0"
domid = "0"
device-model = ""
0 = ""
state = "running"
memory = ""
target = "13118716"
static-max = "4294967292"
freemem-slack = "317576"
libxl = ""
disable_udev = "1"
backend = ""
vbd = ""
3 = ""
51712 = ""
frontend = "/local/domain/3/device/vbd/51712"
params = "/dev/fedora_ghoul3/debian_32"
script = "/etc/xen/scripts/block"
physical-device = "fd:2"
frontend-id = "3"
online = "1"
removable = "1"
bootable = "1"
state = "4"
dev = "xvda"
type = "phy"
mode = "w"
device-type = "disk"
feature-flush-cache = "1"
feature-discard = "0"
feature-barrier = "1"
feature-persistent = "1"
feature-max-indirect-segments = "256"
sectors = "10485760"
info = "0"
sector-size = "512"
physical-sector-size = "512"
4 = ""
51712 = ""
frontend = "/local/domain/4/device/vbd/51712"
params = "/dev/fedora_ghoul3/fedora20_64"
script = "/etc/xen/scripts/block"
physical-device = "fd:3"
frontend-id = "4"
online = "1"
removable = "1"
bootable = "1"
state = "4"
dev = "xvda"
type = "phy"
mode = "w"
device-type = "disk"
feature-flush-cache = "1"
feature-discard = "0"
feature-barrier = "1"
feature-persistent = "1"
feature-max-indirect-segments = "256"
sectors = "10485760"
info = "0"
sector-size = "512"
physical-sector-size = "512"
console = ""
3 = ""
0 = ""
frontend = "/local/domain/3/console"
frontend-id = "3"
online = "1"
state = "1"
domain = "debian_32"
protocol = "vt100"
4 = ""
0 = ""
frontend = "/local/domain/4/console"
frontend-id = "4"
online = "1"
state = "1"
domain = "fedora20_64"
protocol = "vt100"
vif = ""
3 = ""
0 = ""
frontend = "/local/domain/3/device/vif/0"
frontend-id = "3"
online = "1"
state = "4"
script = "/etc/xen/scripts/vif-bridge"
mac = "00:16:3e:9f:ea:e6"
bridge = "virbr0"
handle = "0"
type = "vif"
feature-sg = "1"
feature-gso-tcpv4 = "1"
feature-rx-copy = "1"
feature-rx-flip = "0"
feature-split-event-channels = "1"
hotplug-status = "connected"
4 = ""
0 = ""
frontend = "/local/domain/4/device/vif/0"
frontend-id = "4"
online = "1"
state = "4"
script = "/etc/xen/scripts/vif-bridge"
mac = "00:16:3e:a8:fd:05"
bridge = "virbr0"
handle = "0"
type = "vif"
feature-sg = "1"
feature-gso-tcpv4 = "1"
feature-rx-copy = "1"
feature-rx-flip = "0"
feature-split-event-channels = "1"
hotplug-status = "connected"
3 = ""
vm = "/vm/d3c586b2-f26d-4671-a6b3-6782fa01f49f"
name = "debian_32"
cpu = ""
0 = ""
availability = "online"
1 = ""
availability = "online"
memory = ""
static-max = "1048576"
target = "1048577"
videoram = "-1"
device = ""
suspend = ""
event-channel = ""
vbd = ""
51712 = ""
backend = "/local/domain/0/backend/vbd/3/51712"
backend-id = "0"
state = "4"
virtual-device = "51712"
device-type = "disk"
protocol = "x86_32-abi"
ring-ref = "8"
event-channel = "15"
feature-persistent = "1"
vif = ""
0 = ""
backend = "/local/domain/0/backend/vif/3/0"
backend-id = "0"
state = "4"
handle = "0"
mac = "00:16:3e:9f:ea:e6"
tx-ring-ref = "9"
rx-ring-ref = "10"
event-channel-tx = "16"
event-channel-rx = "17"
request-rx-copy = "1"
feature-rx-notify = "1"
feature-sg = "1"
feature-gso-tcpv4 = "1"
control = ""
shutdown = ""
platform-feature-multiprocessor-suspend = "1"
platform-feature-xs_reset_watches = "1"
data = ""
domid = "3"
store = ""
port = "1"
ring-ref = "1353957"
console = ""
backend = "/local/domain/0/backend/console/3/0"
backend-id = "0"
limit = "1048576"
type = "xenconsoled"
output = "pty"
tty = "/dev/pts/2"
port = "2"
ring-ref = "2366273"
4 = ""
vm = "/vm/d02acb9a-e99e-42ca-b2a4-9e32a65b9a0f"
name = "fedora20_64"
cpu = ""
0 = ""
availability = "online"
1 = ""
availability = "online"
memory = ""
static-max = "2097152"
target = "2097153"
videoram = "-1"
device = ""
suspend = ""
event-channel = ""
vbd = ""
51712 = ""
backend = "/local/domain/0/backend/vbd/4/51712"
backend-id = "0"
state = "4"
virtual-device = "51712"
device-type = "disk"
protocol = "x86_64-abi"
ring-ref = "8"
event-channel = "15"
feature-persistent = "1"
vif = ""
0 = ""
backend = "/local/domain/0/backend/vif/4/0"
backend-id = "0"
state = "4"
handle = "0"
mac = "00:16:3e:a8:fd:05"
tx-ring-ref = "135"
rx-ring-ref = "136"
event-channel-tx = "16"
event-channel-rx = "17"
request-rx-copy = "1"
feature-rx-notify = "1"
feature-sg = "1"
feature-gso-tcpv4 = "1"
control = ""
shutdown = ""
platform-feature-multiprocessor-suspend = "1"
platform-feature-xs_reset_watches = "1"
data = ""
domid = "4"
store = ""
port = "1"
ring-ref = "2486615"
console = ""
backend = "/local/domain/0/backend/console/4/0"
backend-id = "0"
limit = "1048576"
type = "xenconsoled"
output = "pty"
tty = "/dev/pts/4"
port = "2"
ring-ref = "1364170"
vm = ""
00000000-0000-0000-0000-000000000000 = ""
memory = "12811"
d3c586b2-f26d-4671-a6b3-6782fa01f49f = ""
uuid = "d3c586b2-f26d-4671-a6b3-6782fa01f49f"
name = "debian_32"
image = ""
ostype = "linux"
kernel = "/var/run/xen/bootloader.3.d/boot_kernel.eYl1YW"
ramdisk = "/var/run/xen/bootloader.3.d/boot_ramdisk.BxZLo9"
cmdline = "root=UUID=9df3cd14-ed12-4cee-a252-d0cd29f75b55 ro quiet"
start_time = "1387288160.47"
d02acb9a-e99e-42ca-b2a4-9e32a65b9a0f = ""
uuid = "d02acb9a-e99e-42ca-b2a4-9e32a65b9a0f"
name = "fedora20_64"
image = ""
ostype = "linux"
kernel = "/var/run/xen/bootloader.4.d/boot_kernel.w1Ntxo"
ramdisk = "/var/run/xen/bootloader.4.d/boot_ramdisk.XU7an0"
cmdline = "root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root vconsole.font=latarcyrheb-sun16 LANG=en_US.UTF-8"
start_time = "1387288245.20"
libxl = ""
3 = ""
dm-version = "qemu_xen"
4 = ""
dm-version = "qemu_xen"
Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
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