Xen users - Jan 2010 - migrate in SLES11

Hi all,

i am trying to migrate a vm from SLES11 host to CentOS5.1 host.
SLES11 xen version is 3.3 and in CentOs it is 3.1.

i am getting error xc_save failed
content of the xend.log is given below.

can anyone help?


[2010-01-20 21:58:07 3658] DEBUG (XendCheckpoint:314)
restore:shadow=0x0, _static_max=0x10000000, _static_min=0x0,
[2010-01-20 21:58:08 3658] DEBUG (balloon:157) Balloon: 4892 KiB free;
0 to scrub; need 262144; retries: 20.
[2010-01-20 21:58:08 3658] DEBUG (balloon:157) Balloon: 4892 KiB free;
0 to scrub; need 262144; retries: 20.
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:2446)
XendDomainInfo.destroy: domid=6
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:1976) No device model
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:1978) Releasing devices
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:1991) Removing vif/0
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:922)
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:1991) Removing console/0
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:922)
XendDomainInfo.destroyDevice: deviceClass = console, device console/0
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:1991) Removing vbd/51712
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:922)
XendDomainInfo.destroyDevice: deviceClass = tap, device = vbd/51712
[2010-01-20 21:58:31 3658] ERROR (XendDomain:1146) Restore failed
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomain.py",
line 1144, in domain_restore_fd
    return XendCheckpoint.restore(self, fd, paused=paused,
relocating=relocating)
  File
"/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py",
line 323, in restore
    balloon.free(memory + shadow)
  File "/usr/lib64/python2.6/site-packages/xen/xend/balloon.py", line
195, in free
    free_mem + scrub_mem + dom0_alloc - dom0_min_mem))
VmError: I need 262144 KiB, but dom0_min_mem is 524288 and shrinking
to 524288 KiB would leave only 213784 KiB free.
[2010-01-20 21:58:31 3658] INFO (XendCheckpoint:451) Saving memory
pages: iter 1   0%ERROR Internal error: Error when writing to state
file (4b) (errno 104)
[2010-01-20 21:58:31 3658] INFO (XendCheckpoint:451) Save exit rc=1
[2010-01-20 21:58:31 3658] ERROR (XendCheckpoint:167) Save failed on
domain cent1 (5) - resuming.
Traceback (most recent call last):
  File
"/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py",
line 128, in save
    forkHelper(cmd, fd, saveInputHandler, False)
  File
"/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py",
line 439, in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 43 5 0 0 1 failed
[2010-01-20 21:58:31 3658] DEBUG (XendDomainInfo:2502)
XendDomainInfo.resumeDomain(5)


-- 
Rajasekharan.R

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

On Wed, Jan 20, 2010 at 6:36 PM, Rajasekhar <rajasekhar911@gmail.com>
wrote:
> VmError: I need 262144 KiB, but dom0_min_mem is 524288 and shrinking
> to 524288 KiB would leave only 213784 KiB free.
I''ll start with that (you don''t have enough free memory)
> [2010-01-20 21:58:31 3658] INFO (XendCheckpoint:451) Saving memory
> pages: iter 1   0%ERROR Internal error: Error when writing to state
> file (4b) (errno 104)
... and probably not enough disk space?

Also, I''m not sure whether live migrate between different Xen version
works.

-- 
Fajar

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users