Xen Migration Errors

[Chris Vaughan]

Hi,

I am trying to perform a live xen migration and in the xm list it's saying
that it transfers but when I try and console onto the node it looks like it
does a kernel dump.

Here is my xend.log:

[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:259)
XendDomainInfo.restore(['domain', ['domid', '4'],
['uuid',
'aeb7627f-88cb-2248-726c-42a57950aa83'], ['ssidref', '0'],
['vcpus', '1'],
['vcpu_avail', '1'], ['cpu_weight', '1.0'],
['memory', '64'], ['maxmem',
'64'], ['features'], ['name', 'fedoraNode'],
['on_poweroff', 'destroy'],
['on_reboot', 'restart'], ['on_crash', 'restart'],
['image', ['linux',
['kernel', '/boot/vmlinuz-2.6.16-1.2122_FC5xenU'], ['root',
'/dev/sda1'],
['args', 'selinux=0 3 
HOSTINFO=testnode151:192.168.0.70SERVERINFO=testnode150:
192.168.0.70 NODELIST= GATEWAY=192.168.0.1
DNS=192.168.0.1USERLIST=test1:mike APP= APPARGS=']]], ['device',
['vif', ['backend', '0'],
['script', 'vif-bridge'], ['mac', '00:16:3e:03:c0:44']]],
['device', ['vbd',
['backend', '0'], ['dev', 'sda1'], ['uname',
'file:/home/chris/images/fedoraNode.img'], ['mode', 'w']]],
['state',
'--p---'], ['shutdown_reason', 'poweroff'], ['cpu_time',
'0.0'],
['online_vcpus', '1'], ['up_time', '70.0036299229'],
['start_time', '
1150929727.88'], ['store_mfn', '134920'], ['console_mfn',
'134919']])
[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:290)
parseConfig: config is ['domain', ['domid', '4'],
['uuid',
'aeb7627f-88cb-2248-726c-42a57950aa83'], ['ssidref', '0'],
['vcpus', '1'],
['vcpu_avail', '1'], ['cpu_weight', '1.0'],
['memory', '64'], ['maxmem',
'64'], ['features'], ['name', 'fedoraNode'],
['on_poweroff', 'destroy'],
['on_reboot', 'restart'], ['on_crash', 'restart'],
['image', ['linux',
['kernel', '/boot/vmlinuz-2.6.16-1.2122_FC5xenU'], ['root',
'/dev/sda1'],
['args', 'selinux=0 3 
HOSTINFO=testnode151:192.168.0.70SERVERINFO=testnode150:
192.168.0.70 NODELIST= GATEWAY=192.168.0.1
DNS=192.168.0.1USERLIST=test1:mike APP= APPARGS=']]], ['device',
['vif', ['backend', '0'],
['script', 'vif-bridge'], ['mac', '00:16:3e:03:c0:44']]],
['device', ['vbd',
['backend', '0'], ['dev', 'sda1'], ['uname',
'file:/home/chris/images/fedoraNode.img'], ['mode', 'w']]],
['state',
'--p---'], ['shutdown_reason', 'poweroff'], ['cpu_time',
'0.0'],
['online_vcpus', '1'], ['up_time', '70.0036299229'],
['start_time', '
1150929727.88'], ['store_mfn', '134920'], ['console_mfn',
'134919']]
[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:389)
parseConfig: result is {'uuid': 'aeb7627f-88cb-2248-726c-42a57950aa83',
'on_crash': 'restart', 'on_reboot': 'restart',
'image': ['linux', ['kernel',
'/boot/vmlinuz-2.6.16-1.2122_FC5xenU'], ['root', '/dev/sda1'],
['args',
'selinux=0 3  HOSTINFO=testnode151:192.168.0.70 SERVERINFO=testnode150:
192.168.0.70 NODELIST= GATEWAY=192.168.0.1
DNS=192.168.0.1USERLIST=test1:mike APP= APPARGS=']], 'on_poweroff':
'destroy',
'bootloader_args': None, 'cpus': None, 'name':
'fedoraNode', 'backend': [],
'vcpus': 1, 'cpu_weight': 1.0, 'features': None,
'vcpu_avail': 1, 'memory':
64, 'device': [('vif', ['vif', ['backend', '0'],
['script', 'vif-bridge'],
['mac', '00:16:3e:03:c0:44']]), ('vbd', ['vbd',
['backend', '0'], ['dev',
'sda1'], ['uname', 'file:/home/chris/images/fedoraNode.img'],
['mode',
'w']])], 'bootloader': None, 'cpu': None, 'maxmem': 64}
[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:1205)
XendDomainInfo.construct: None
[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:700) Storing
VM details: {'name': 'fedoraNode', 'on_reboot': 'restart',
'image': "(linux
(kernel /boot/vmlinuz-2.6.16-1.2122_FC5xenU) (root /dev/sda1) (args
'selinux=0 3  HOSTINFO=testnode151:192.168.0.70 SERVERINFO=testnode150:
192.168.0.70 NODELIST= GATEWAY=192.168.0.1
DNS=192.168.0.1USERLIST=test1:mike APP= APPARGS='))", 'on_poweroff':
'destroy', 'uuid':
'aeb7627f-88cb-2248-726c-42a57950aa83', 'on_crash': 'restart',
'vcpus': '1',
'vcpu_avail': '1', 'memory': '64', 'maxmem':
'64'}
[2006-06-21 14:33:01 xend] DEBUG (DevController:110) DevController: writing
{'backend-id': '0', 'mac': '00:16:3e:03:c0:44',
'handle': '0', 'state': '1',
'backend': '/local/domain/0/backend/vif/23/0'} to
/local/domain/23/device/vif/0.
[2006-06-21 14:33:01 xend] DEBUG (DevController:112) DevController: writing
{'mac': '00:16:3e:03:c0:44', 'state': '1',
'handle': '0', 'script':
'/etc/xen/scripts/vif-bridge', 'frontend-id': '23',
'domain': 'fedoraNode',
'frontend': '/local/domain/23/device/vif/0'} to
/local/domain/0/backend/vif/23/0.
[2006-06-21 14:33:01 xend] DEBUG (blkif:24) exception looking up device
number for sda1: [Errno 2] No such file or directory: '/dev/sda1'
[2006-06-21 14:33:01 xend] DEBUG (DevController:110) DevController: writing
{'virtual-device': '2049', 'backend-id': '0',
'state': '1', 'backend':
'/local/domain/0/backend/vbd/23/2049'} to /local/domain/23/device/vbd/2049.
[2006-06-21 14:33:01 xend] DEBUG (DevController:112) DevController: writing
{'domain': 'fedoraNode', 'frontend':
'/local/domain/23/device/vbd/2049',
'dev': 'sda1', 'state': '1', 'params':
'/home/chris/images/fedoraNode.img',
'mode': 'w', 'frontend-id': '23', 'type':
'file'} to
/local/domain/0/backend/vbd/23/2049.
[2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:725) Storing
domain details: {'console/port': '2', 'name':
'fedoraNode', 'console/limit':
'1048576', 'vm': '/vm/aeb7627f-88cb-2248-726c-42a57950aa83',
'domid': '23',
'cpu/0/availability': 'online', 'memory/target': '65536',
'store/port': '1'}
[2006-06-21 14:33:01 xend] DEBUG (balloon:126) Balloon: free 237; need 73;
done.
[2006-06-21 14:33:01 xend] DEBUG (XendCheckpoint:155) [xc_restore]:
/usr/lib/xen/bin/xc_restore 10 20 23 18432 1 2
[2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) xc_linux_restore
start: max_pfn = 4800
[2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) Increased domain
reservation by 12000 KB
[2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) Reloading memory
pages:   0%
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Received all pages (0
races)
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) ^H^H^H^H100%
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Memory reloaded.
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Decreased reservation
by 2136 pages
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Domain ready to be
built.
[2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Restore exit with rc=0
[2006-06-21 14:33:08 xend] DEBUG (XendCheckpoint:207) store-mfn 107286
[2006-06-21 14:33:08 xend] DEBUG (XendCheckpoint:207) console-mfn 28893
[2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:663)
XendDomainInfo.completeRestore
[2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:725) Storing
domain details: {'console/ring-ref': '28893', 'console/port':
'2', 'name':
'fedoraNode', 'console/limit': '1048576', 'vm':
'/vm/aeb7627f-88cb-2248-726c-42a57950aa83', 'domid': '23',
'cpu/0/availability': 'online', 'memory/target': '65536',
'store/ring-ref':
'107286', 'store/port': '1'}
[2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:908)
XendDomainInfo.handleShutdownWatch
[2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:673)
XendDomainInfo.completeRestore done

Any help would be appreciated.  Both distros are running FC5.  Does the same
hardware, kernel and image need to exist on the host and the migration
destination?

Thanks,


-- 
------------------------------
Christopher Vaughan

[Chris Vaughan]

I found my answer here:
http://lists.xensource.com/archives/html/xen-users/2006-06/msg00888.html

On 6/21/06, Chris Vaughan <supercomputer(a)gmail.com&gt; wrote:
>  Hi,
>
>  I am trying to perform a live xen migration and in the xm list it's saying
>  that it transfers but when I try and console onto the node it looks like it
>  does a kernel dump.
>
>  Here is my xend.log:
>
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:259)
>  XendDomainInfo.restore(['domain', ['domid', '4'],
> ['uuid',
>  'aeb7627f-88cb-2248-726c-42a57950aa83'], ['ssidref', '0'],
> ['vcpus', '1'],
>  ['vcpu_avail', '1'], ['cpu_weight', '1.0 '],
> ['memory', '64'], ['maxmem',
>  '64'], ['features'], ['name', 'fedoraNode'],
> ['on_poweroff', 'destroy'],
>  ['on_reboot', 'restart'], ['on_crash', 'restart'],
> ['image', ['linux',
>  ['kernel', '/boot/vmlinuz-2.6.16-1.2122_FC5xenU' ], ['root',
> '/dev/sda1'],
>  ['args', 'selinux=0 3 
> HOSTINFO=testnode151:192.168.0.70SERVERINFO=testnode150:
>  192.168.0.70 NODELIST= GATEWAY= 192.168.0.1 DNS=192.168.0.1USERLIST=test1:mike APP=
> APPARGS=']]], ['device', ['vif', ['backend', '0'],
>  ['script', 'vif-bridge'], ['mac', '00:16:3e:03:c0:44']]],
> ['device', ['vbd',
>  ['backend', '0'], ['dev', 'sda1'], ['uname',
>  'file:/home/chris/images/fedoraNode.img'], ['mode', 'w']]],
> ['state',
>  '--p---'], ['shutdown_reason', 'poweroff'], ['cpu_time',
> ' 0.0'],
>  ['online_vcpus', '1'], ['up_time', '70.0036299229'],
> ['start_time', '
>  1150929727.88'], ['store_mfn', '134920'], ['console_mfn',
> '134919']])
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:290)
>  parseConfig: config is ['domain', ['domid', '4'],
> ['uuid',
>  'aeb7627f-88cb-2248-726c-42a57950aa83'], ['ssidref', '0'],
> ['vcpus', '1'],
>  ['vcpu_avail', '1'], ['cpu_weight', ' 1.0'],
> ['memory', '64'], ['maxmem',
>  '64'], ['features'], ['name', 'fedoraNode'],
> ['on_poweroff', 'destroy'],
>  ['on_reboot', 'restart'], ['on_crash', 'restart'],
> ['image', ['linux',
>  ['kernel', '/boot/vmlinuz-2.6.16-1.2122_FC5xenU' ], ['root',
> '/dev/sda1'],
>  ['args', 'selinux=0 3 
> HOSTINFO=testnode151:192.168.0.70SERVERINFO=testnode150:
>  192.168.0.70 NODELIST= GATEWAY= 192.168.0.1 DNS=192.168.0.1USERLIST=test1:mike APP=
> APPARGS=']]], ['device', ['vif', ['backend', '0'],
>  ['script', 'vif-bridge'], ['mac', '00:16:3e:03:c0:44']]],
> ['device', ['vbd',
>  ['backend', '0'], ['dev', 'sda1'], ['uname',
>  'file:/home/chris/images/fedoraNode.img'], ['mode', 'w']]],
> ['state',
>  '--p---'], ['shutdown_reason', 'poweroff'], ['cpu_time',
> ' 0.0'],
>  ['online_vcpus', '1'], ['up_time', '70.0036299229'],
> ['start_time', '
>  1150929727.88'], ['store_mfn', '134920'], ['console_mfn',
> '134919']]
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:389)
>  parseConfig: result is {'uuid': 'aeb7627f-88cb-2248-726c-42a57950aa83',
>  'on_crash': 'restart', 'on_reboot': 'restart',
> 'image': ['linux', ['kernel',
>  '/boot/vmlinuz- 2.6.16-1.2122_FC5xenU'], ['root', '/dev/sda1'],
> ['args',
>  'selinux=0 3  HOSTINFO=testnode151:192.168.0.70 SERVERINFO=testnode150:
>  192.168.0.70 NODELIST= GATEWAY= 192.168.0.1 DNS=192.168.0.1USERLIST=test1:mike APP=
> APPARGS=']], 'on_poweroff': 'destroy',
>  'bootloader_args': None, 'cpus': None, 'name':
> 'fedoraNode', 'backend': [],
>  'vcpus': 1, 'cpu_weight': 1.0, 'features': None,
> 'vcpu_avail': 1,
>  'memory': 64, 'device': [('vif', ['vif',
> ['backend', '0'], ['script',
>  'vif-bridge'], ['mac', '00:16:3e:03:c0:44']]), ('vbd',
> ['vbd', ['backend',
>  '0'], ['dev', 'sda1'], ['uname',
> 'file:/home/chris/images/fedoraNode.img'],
>  ['mode', 'w']])], 'bootloader': None, 'cpu': None,
> 'maxmem': 64}
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:1205)
>  XendDomainInfo.construct: None
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:700)
>  Storing VM details: {'name': 'fedoraNode', 'on_reboot':
> 'restart', 'image':
>  "(linux (kernel /boot/vmlinuz- 2.6.16-1.2122_FC5xenU) (root /dev/sda1)
>  (args 'selinux=0 3  HOSTINFO=testnode151:192.168.0.70SERVERINFO=testnode150:
>  192.168.0.70 NODELIST= GATEWAY= 192.168.0.1 DNS=192.168.0.1USERLIST=test1:mike APP=
> APPARGS='))", 'on_poweroff': 'destroy', 'uuid':
>  'aeb7627f-88cb-2248-726c-42a57950aa83', 'on_crash': 'restart',
> 'vcpus': '1',
>  'vcpu_avail': '1', 'memory': '64', 'maxmem':
> '64'}
>  [2006-06-21 14:33:01 xend] DEBUG (DevController:110) DevController:
>  writing {'backend-id': '0', 'mac': '00:16:3e:03:c0:44',
> 'handle': '0',
>  'state': '1', 'backend':
> '/local/domain/0/backend/vif/23/0'} to
>  /local/domain/23/device/vif/0.
>  [2006-06-21 14:33:01 xend] DEBUG (DevController:112) DevController:
>  writing {'mac': '00:16:3e:03:c0:44', 'state': '1',
> 'handle': '0', 'script':
>  '/etc/xen/scripts/vif-bridge', 'frontend-id': '23',
> 'domain': 'fedoraNode',
>  'frontend': '/local/domain/23/device/vif/0'} to
>  /local/domain/0/backend/vif/23/0.
>  [2006-06-21 14:33:01 xend] DEBUG (blkif:24) exception looking up device
>  number for sda1: [Errno 2] No such file or directory: '/dev/sda1'
>  [2006-06-21 14:33:01 xend] DEBUG (DevController:110) DevController:
>  writing {'virtual-device': '2049', 'backend-id': '0',
> 'state': '1',
>  'backend': '/local/domain/0/backend/vbd/23/2049'} to
>  /local/domain/23/device/vbd/2049.
>  [2006-06-21 14:33:01 xend] DEBUG (DevController:112) DevController:
>  writing {'domain': 'fedoraNode', 'frontend':
>  '/local/domain/23/device/vbd/2049', 'dev': 'sda1',
> 'state': '1', 'params':
>  '/home/chris/images/fedoraNode.img', 'mode': 'w',
> 'frontend-id': '23',
>  'type': 'file'} to /local/domain/0/backend/vbd/23/2049.
>  [2006-06-21 14:33:01 xend.XendDomainInfo] DEBUG (XendDomainInfo:725)
>  Storing domain details: {'console/port': '2', 'name':
> 'fedoraNode',
>  'console/limit': '1048576', 'vm':
>  '/vm/aeb7627f-88cb-2248-726c-42a57950aa83', 'domid': '23',
>  'cpu/0/availability': 'online', 'memory/target': '65536',
> 'store/port': '1'}
>
>  [2006-06-21 14:33:01 xend] DEBUG (balloon:126) Balloon: free 237; need 73;
>  done.
>  [2006-06-21 14:33:01 xend] DEBUG (XendCheckpoint:155) [xc_restore]:
>  /usr/lib/xen/bin/xc_restore 10 20 23 18432 1 2
>  [2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) xc_linux_restore
>  start: max_pfn = 4800
>  [2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) Increased domain
>  reservation by 12000 KB
>  [2006-06-21 14:33:01 xend] ERROR (XendCheckpoint:234) Reloading memory
>  pages:   0%
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Received all pages
>  (0 races)
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) ^H^H^H^H100%
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Memory reloaded.
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Decreased
>  reservation by 2136 pages
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Domain ready to be
>  built.
>  [2006-06-21 14:33:08 xend] ERROR (XendCheckpoint:234) Restore exit with
>  rc=0
>  [2006-06-21 14:33:08 xend] DEBUG (XendCheckpoint:207) store-mfn 107286
>  [2006-06-21 14:33:08 xend] DEBUG (XendCheckpoint:207) console-mfn 28893
>  [2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:663)
>  XendDomainInfo.completeRestore
>  [2006-06-21 14:33:08 xend.XendDomainInfo ] DEBUG (XendDomainInfo:725)
>  Storing domain details: {'console/ring-ref': '28893',
> 'console/port': '2',
>  'name': 'fedoraNode', 'console/limit': '1048576',
> 'vm':
>  '/vm/aeb7627f-88cb-2248-726c-42a57950aa83', 'domid': '23',
>  'cpu/0/availability': 'online', 'memory/target': '65536',
> 'store/ring-ref':
>  '107286', 'store/port': '1'}
>  [2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:908)
>  XendDomainInfo.handleShutdownWatch
>  [2006-06-21 14:33:08 xend.XendDomainInfo] DEBUG (XendDomainInfo:673)
>  XendDomainInfo.completeRestore done
>
>  Any help would be appreciated.  Both distros are running FC5.  Does the
>  same hardware, kernel and image need to exist on the host and the migration
>  destination?
>
>  Thanks,
>
>
>  --
>  ------------------------------
>  Christopher Vaughan
>  


-- 
------------------------------
Christopher Vaughan