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Nicola Bianchi
2006-Apr-27 12:29 UTC
[Xen-users] migration, domU crash on destination dom0

Hi,
I''ve 2 dom0 machine with slackware 10.2 and xen-3.0-testing istalled 
from source.

When I try to migrate a domU between the 2 dom0 machine I''ve problem.

The migration seem to work because, at the end, the domU migrate form a 
machine to the other but the domU crash and reboot before...

In the log of the source dom0 machine I''ve this error:

###
....
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2822. mfn ffffffff
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2823. mfn ffffffff
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2824. mfn ffffffff
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2825. mfn ffffffff
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2826. mfn ffffffff
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) netbuf race: iter 
4, pfn 2827. mfn ffffffff
....
[2006-04-27 14:08:47 xend] DEBUG (XendCheckpoint:80) [xc_save]: 
/usr/lib/xen/bin/xc_save 11 18 6 0 0 1
[2006-04-27 14:08:47 xend] ERROR (XendCheckpoint:227) Had 0 unexplained 
entries in p2m table
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:200) suspend
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:83) In saveInputHandler 
suspend
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:85) Suspending 6 ...
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) 
XendDomainInfo.handleShutdownWatch
  2: sent 56, skipped 0, delta 20ms, dom0 35%, target 0%, sent 91Mb/s, 
dirtied 0Mb/s 0 pages
  3: sent 0, skipped 0, Start last iterationpoint:227) Saving memory 
pages: iter 3   0%
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) 
XendDomainInfo.handleShutdownWatch
[2006-04-27 14:08:52 xend.XendDomainInfo] INFO (XendDomainInfo:836) 
Domain has shutdown: name=migrating-slack-1 id=6 reason=suspend.
[2006-04-27 14:08:52 xend] INFO (XendCheckpoint:88) Domain 6 suspended.
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:91) Written done
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) SUSPEND shinfo 
00000bd6 eip c01013a7 edx 00010b08
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) delta 18ms, dom0 
100%, target 0%, sent 0Mb/s, dirtied 136Mb/s 75 pages
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) 4: sent 75, 
skipped 0, delta 21ms, dom0 95%, target 0%, sent 117Mb/s, dirtied 
117Mb/s 75 pages
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Total pages sent= 
12387 (0.86x)
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) (of which 0 were 
fixups)
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) All memory is saved
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Save exit rc=0
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335) 
XendDomainInfo.destroyDomain(6)
###

and on the destination dom0 machine:

####

[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:253) 
XendDomainInfo.restore([''domain'', [''domid'',
''6''], [''uuid'',
''404d7c42-5c61-502f-1108-6b50d4d942f8''],
[''ssidref'', ''0''],
[''vcpus'',
''1''], [''vcpu_avail'', ''1''],
[''cpu_weight'', ''1.0''],
[''memory'', ''48''],
[''maxmem'', ''48''], [''name'',
''slack-1''], [''on_poweroff'',
''destroy''],
[''on_reboot'', ''restart''],
[''on_crash'', ''restart''],
[''image'', [''linux'',
[''kernel'', ''/boot/vmlinuz-2.6.16-xen''],
[''ip'',
''192.168.168.222:1.2.3.4:192.168.168.1:255.255.255.0:virtual:eth0:no''],
[''root'', ''/dev/sda1 ro''],
[''args'', ''3'']]],
[''device'', [''vif'',
[''backend'', ''0''],
[''script'', ''vif-bridge''],
[''mac'',
''00:16:3e:56:c2:5f'']]], [''device'',
[''vbd'', [''backend'', ''0''],
[''dev'',
''sda1''], [''uname'',
''file:/vds/root_fs''], [''mode'',
''w'']]], [''state'',
''-b----''], [''shutdown_reason'',
''poweroff''], [''cpu_time'',
''2.020679711''],
[''online_vcpus'', ''1''],
[''up_time'', ''199.204096079''],
[''start_time'',
''1146139528.13''], [''store_mfn'',
''68359''], [''console_mfn'',
''68358'']])
[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:284) 
parseConfig: config is [''domain'', [''domid'',
''6''], [''uuid'',
''404d7c42-5c61-502f-1108-6b50d4d942f8''],
[''ssidref'', ''0''],
[''vcpus'',
''1''], [''vcpu_avail'', ''1''],
[''cpu_weight'', ''1.0''],
[''memory'', ''48''],
[''maxmem'', ''48''], [''name'',
''slack-1''], [''on_poweroff'',
''destroy''],
[''on_reboot'', ''restart''],
[''on_crash'', ''restart''],
[''image'', [''linux'',
[''kernel'', ''/boot/vmlinuz-2.6.16-xen''],
[''ip'',
''192.168.168.222:1.2.3.4:192.168.168.1:255.255.255.0:virtual:eth0:no''],
[''root'', ''/dev/sda1 ro''],
[''args'', ''3'']]],
[''device'', [''vif'',
[''backend'', ''0''],
[''script'', ''vif-bridge''],
[''mac'',
''00:16:3e:56:c2:5f'']]], [''device'',
[''vbd'', [''backend'', ''0''],
[''dev'',
''sda1''], [''uname'',
''file:/vds/root_fs''], [''mode'',
''w'']]], [''state'',
''-b----''], [''shutdown_reason'',
''poweroff''], [''cpu_time'',
''2.020679711''],
[''online_vcpus'', ''1''],
[''up_time'', ''199.204096079''],
[''start_time'',
''1146139528.13''], [''store_mfn'',
''68359''], [''console_mfn'',
''68358'']]
[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:380) 
parseConfig: result is {''ssidref'': 0,
''uuid'':
''404d7c42-5c61-502f-1108-6b50d4d942f8'',
''on_crash'': ''restart'',
''on_reboot'': ''restart'',
''image'': [''linux'',
[''kernel'',
''/boot/vmlinuz-2.6.16-xen''], [''ip'', 
''192.168.168.222:1.2.3.4:192.168.168.1:255.255.255.0:virtual:eth0:no''],
[''root'', ''/dev/sda1 ro''],
[''args'', ''3'']],
''on_poweroff'': ''destroy'',
''cpus'': None, ''name'':
''slack-1'', ''backend'': [],
''vcpus'': 1,
''cpu_weight'': 1.0, ''vcpu_avail'': 1,
''memory'': 48, ''device'':
[(''vif'',
[''vif'', [''backend'', ''0''],
[''script'', ''vif-bridge''],
[''mac'',
''00:16:3e:56:c2:5f'']]), (''vbd'',
[''vbd'', [''backend'', ''0''],
[''dev'',
''sda1''], [''uname'',
''file:/vds/root_fs''], [''mode'',
''w'']])], ''bootloader'':
None, ''cpu'': None, ''maxmem'': 48}
[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164) 
XendDomainInfo.construct: None 0
[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:671) 
Storing VM details: {''ssidref'': ''0'',
''uuid'':
''404d7c42-5c61-502f-1108-6b50d4d942f8'',
''on_reboot'': ''restart'',
''image'':
"(linux (kernel /boot/vmlinuz-2.6.16-xen) (ip 
192.168.168.222:1.2.3.4:192.168.168.1:255.255.255.0:virtual:eth0:no) 
(root ''/dev/sda1 ro'') (args 3))",
''on_poweroff'': ''destroy'',
''name'':
''slack-1'', ''vcpus'': ''1'',
''vcpu_avail'': ''1'',
''memory'': ''48'',
''on_crash'':
''restart'', ''maxmem'': ''48''}
[2006-04-27 14:08:47 xend] DEBUG (DevController:103) DevController: 
writing {''backend-id'': ''0'',
''mac'': ''00:16:3e:56:c2:5f'',
''handle'': ''0'',
''state'': ''1'', ''backend'':
''/local/domain/0/backend/vif/7/0''} to
/local/domain/7/device/vif/0.
[2006-04-27 14:08:47 xend] DEBUG (DevController:105) DevController: 
writing {''mac'': ''00:16:3e:56:c2:5f'',
''state'': ''1'', ''handle'':
''0'',
''script'': ''/etc/xen/scripts/vif-bridge'',
''frontend-id'': ''7'',
''domain'':
''slack-1'', ''frontend'':
''/local/domain/7/device/vif/0''} to
/local/domain/0/backend/vif/7/0.
[2006-04-27 14:08:47 xend] DEBUG (DevController:103) DevController: 
writing {''virtual-device'': ''2049'',
''backend-id'': ''0'',
''state'': ''1'',
''backend'':
''/local/domain/0/backend/vbd/7/2049''} to
/local/domain/7/device/vbd/2049.
[2006-04-27 14:08:47 xend] DEBUG (DevController:105) DevController: 
writing {''domain'': ''slack-1'',
''frontend'':
''/local/domain/7/device/vbd/2049'', ''dev'':
''sda1'', ''state'': ''1'',
''params'': ''/vds/root_fs'',
''mode'': ''w'',
''frontend-id'': ''7'',
''type'':
''file''} to /local/domain/0/backend/vbd/7/2049.
[2006-04-27 14:08:47 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) 
Storing domain details: {''console/port'':
''2'', ''name'': ''slack-1'',
''console/limit'': ''1048576'',
''vm'':
''/vm/404d7c42-5c61-502f-1108-6b50d4d942f8'',
''domid'': ''7'',
''cpu/0/availability'': ''online'',
''memory/target'': ''49152'',
''store/port'': ''1''}
[2006-04-27 14:08:47 xend] DEBUG (balloon:126) Balloon: free 175; need 
57; done.
[2006-04-27 14:08:47 xend] DEBUG (XendCheckpoint:148) [xc_restore]: 
/usr/lib/xen/bin/xc_restore 11 4 7 14336 1 2
[2006-04-27 14:08:47 xend] ERROR (XendCheckpoint:227) xc_linux_restore 
start: max_pfn = 3800
[2006-04-27 14:08:47 xend] ERROR (XendCheckpoint:227) Increased domain 
reservation by e000 KB
[2006-04-27 14:08:47 xend] ERROR (XendCheckpoint:227) Reloading memory 
pages:   0%
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:200) store-mfn 49283
[2006-04-27 14:08:52 xend] DEBUG (XendCheckpoint:200) console-mfn 49282
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Received all pages 
(0 races)
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:2100%
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Memory reloaded.
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Decreased 
reservation by 2048 pages
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Domain ready to be 
built.
[2006-04-27 14:08:52 xend] ERROR (XendCheckpoint:227) Restore exit with rc=0
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:648) 
XendDomainInfo.completeRestore
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) 
Storing domain details: {''console/ring-ref'':
''49282'', ''console/port'':
''2'', ''name'': ''slack-1'',
''console/limit'': ''1048576'',
''vm'':
''/vm/404d7c42-5c61-502f-1108-6b50d4d942f8'',
''domid'': ''7'',
''cpu/0/availability'': ''online'',
''memory/target'': ''49152'',
''store/ring-ref'': ''49283'',
''store/port'': ''1''}
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) 
XendDomainInfo.handleShutdownWatch
[2006-04-27 14:08:52 xend.XendDomainInfo] DEBUG (XendDomainInfo:658) 
XendDomainInfo.completeRestore done
[2006-04-27 14:08:54 xend.XendDomainInfo] WARNING (XendDomainInfo:819) 
Domain has crashed: name=slack-1 id=7.
[2006-04-27 14:08:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335) 
XendDomainInfo.destroyDomain(7)
..... and new machine boot log!
####

the strange part is "Domain has crashed: name=slack-1 id=7."

Sometime the migration completly fails beacuse I can connect to the new 
console but the domU system is freezed and I must restart the VM with 
"xm reboot slack-1".

You know this problem?

byebye
	nick

-- 
Nicola Bianchi
System Administrator


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Xen users - Apr 2006 - migration, domU crash on destination dom0

[Xen-users] migration, domU crash on destination dom0
