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Re: [Xen-users] xen_blkbk times out before getting connected
DomU configuration file looks like this:
kernel = "/boot/vmlinuz-3.8.0-rc5+"
ramdisk = "/boot/initrd.img-3.8.0-rc5+"
memory = 500
name = "guest2"
disk = ['phy:/dev/loop0,sda1,w']
root = "/dev/disk/by-path/xen-vbd-2049 ro"
extra = 'xencons=tty'
On 2/5/2013 2:59 AM, Roger Pau Monné wrote:
On 03/02/13 18:50, Yathindra wrote:
I'm using the latest linux kernel 3.8.0 with Xen 4.3-unstable. Xenstored
is being started at boot time.
I did not see any message (dmesg/syslog/console) about device being
plugged in but xenstore-ls shows me all
the entries backend and frontend.
Could you post your DomU configuration file also?
Here are some details
------------------------------
From /var/log/syslog:
Feb 3 10:37:31 localhost kernel: [ 36.466359] Event-channel device
installed.
Feb 3 10:37:31 localhost kernel: [ 36.636358] Register
xen_blkbk_driver <<< custom debug message I added
Feb 3 10:37:31 localhost kernel: [ 36.636367]
xenbus_register_backend <<< custom debug message I added
Feb 3 10:37:31 localhost kernel: [ 36.683533] xenbus_register_backend
Feb 3 10:37:31 localhost kernel: [ 36.830115] xen-pciback: backend is
vpci <<< custom debug message I added
Feb 3 10:37:31 localhost kernel: [ 36.830123]
xenbus_register_backend <<< custom debug message I added
Feb 3 10:37:32 localhost xenstored: Checking store ...
Feb 3 10:37:32 localhost xenstored: Checking store complete.
Feb 3 10:37:32 localhost kernel: [ 37.075217] xenbus_probe: xenstored
is ready <<< custom debug message I added
Feb 3 10:37:32 localhost kernel: [ 37.075230] watching node
FFFFFFFF81C7D1A0
Feb 3 10:37:32 localhost kernel: [ 37.081309] xenbus_scanf for node cpu/0
Feb 3 10:37:32 localhost kernel: [ 37.081327] XENBUS xen store gave:
unknown error cpu
Feb 3 10:37:32 localhost kernel: [ 37.081333] xenbus_scanf for node cpu/1
Feb 3 10:37:32 localhost kernel: [ 37.085327] XENBUS unexpected type
[17], expected [2]
Feb 3 10:37:32 localhost kernel: [ 37.085342] watching node
FFFFFFFF81C7D0C0
Feb 3 10:37:32 localhost kernel: [ 37.086857] XENBUS unexpected type
[17], expected [4]
Feb 3 10:37:32 localhost kernel: [ 37.086865] Failed to set shutdown
watcher
Feb 3 10:37:32 localhost kernel: [ 37.086880] backend_probe_and_watch
- enumerates devices in xenstore and watches for changes <<< custom
debug message I added
Feb 3 10:37:32 localhost kernel: [ 37.089401] XENBUS unexpected type
[4], expected [1]
Feb 3 10:37:32 localhost kernel: [ 37.089411] watching node
FFFFFFFF81C7D660
Feb 3 10:37:32 localhost kernel: [ 37.090715] XENBUS xen store gave:
unknown error control/shutdown
Feb 3 10:37:32 localhost kernel: [ 37.090725]
frontend_probe_and_watch: calling xenbus_probe_devices <<< custom debug
message I added
Feb 3 10:37:32 localhost kernel: [ 37.092362] XENBUS unexpected type
[17], expected [1]
Feb 3 10:37:32 localhost kernel: [ 37.092376] watching node
FFFFFFFF81C7D820
Feb 3 10:37:32 localhost kernel: [ 37.093334] watching node
FFFFFFFF81C7DB20
Feb 3 10:37:32 localhost kernel: [ 37.094454] XENBUS xen store gave:
unknown error backend <<< still not sure how critical this is
Feb 3 10:37:32 localhost kernel: [ 37.094463] Failed to set balloon
watcher <<< still not sure how
critical this is
> xenstore-ls
tool = ""
xenstored = ""
local = ""
domain = ""
0 = ""
data = ""
meminfo_total = "930680"
meminfo_free = "691868"
os_name = "Ubuntu 12.04.1 LTS"
os_majorver = "12"
os_minorver = "04"
os_uname = "3.8.0-rc5+"
os_distro = "ubuntu"
updated = "Sun Feb 3 10:43:32 MST 2013"
name = "Domain-0"
attr = ""
xenbr0 = ""
ip = "155.98.39.2"
PVAddons = ""
MajorVersion = "5"
MinorVersion = "5"
MicroVersion = "0"
BuildVersion = "17913"
Installed = "1"
device-model = ""
0 = ""
state = "running"
After this I start the guest domain, here's the xenstore entries,
nodea:~> sudo xenstore-ls
tool = ""
xenstored = ""
local = ""
domain = ""
0 = ""
data = ""
meminfo_total = "930680"
meminfo_free = "695408"
os_name = "Ubuntu 12.04.1 LTS"
os_majorver = "12"
os_minorver = "04"
os_uname = "3.8.0-rc5+"
os_distro = "ubuntu"
updated = "Sun Feb 3 10:45:32 MST 2013"
name = "Domain-0"
attr = ""
xenbr0 = ""
ip = "155.98.39.2"
PVAddons = ""
MajorVersion = "5"
MinorVersion = "5"
MicroVersion = "0"
BuildVersion = "17913"
Installed = "1"
device-model = ""
0 = ""
state = "running"
memory = ""
target = "1048576"
static-max = "4294967292"
freemem-slack = "314476"
libxl = ""
disable_udev = "1"
backend = ""
vbd = ""
1 = ""
2049 = ""
frontend = "/local/domain/1/device/vbd/2049" <<<< everything
seems to be enumerated
params = "/dev/loop0"
script = "/etc/xen/scripts/block"
physical-device = "7:0"
frontend-id = "1"
online = "1"
removable = "0"
bootable = "1"
state = "1"
dev = "sda1"
type = "phy"
mode = "w"
device-type = "disk"
1 = ""
vm = "/vm/9b0dfb10-f69d-4e22-9158-bb70456ece2e"
name = "guest2"
cpu = ""
0 = ""
availability = "online"
memory = ""
static-max = "512000"
target = "512001"
videoram = "-1"
device = ""
suspend = ""
event-channel = ""
vbd = ""
2049 = ""
backend = "/local/domain/0/backend/vbd/1/2049"
backend-id = "0"
state = "1" <<<<< state changes to 5 and then after 5 secs it
times out
virtual-device = "2049"
device-type = "disk"
control = ""
shutdown = ""
platform-feature-multiprocessor-suspend = "1"
platform-feature-xs_reset_watches = "1"
data = ""
domid = "1"
store = ""
port = "1"
ring-ref = "156845"
vm = ""
9b0dfb10-f69d-4e22-9158-bb70456ece2e = ""
uuid = "9b0dfb10-f69d-4e22-9158-bb70456ece2e"
name = "guest2"
image = ""
ostype = "linux"
kernel = "/boot/vmlinuz-3.8.0-rc5+"
ramdisk = "/boot/initrd.img-3.8.0-rc5+"
cmdline = "root=/dev/disk/by-path/xen-vbd-2049 ro xencons=tty"
start_time = "1359913591.67"
libxl = ""
1 = ""
dm-version = "qemu_xen"
Thanks,
Yathi
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