Re: [Xen-users] xen_blkbk times out before getting connected

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On 05/02/13 18:11, Yathindra wrote:
> DomU configuration file looks like this:

Please don't do top posting.

> 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']

Why are you using sda1 instead of xvda1?

> root = "/dev/disk/by-path/xen-vbd-2049 ro"
> extra = 'xencons=tty'

You can use:

extra="root=/dev/xvda1"

> 
> 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
> 


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users