[Xen-users] Problems migrating DomUs in 4.4

[Agustin Lopez <Agustin.Lopez@xxxxx>]

Hello!

I am testing Xen 4.4 and xl with Debian Jessie systems.

In 4.1, I could migrate domus between dom0 without problems (pv and hvm).
Now, with 4.4, the migrating process with xl it is frustrating.

First, I got the next error:
   xc: error: Couldn't set eXtended States for vcpu0 (22 = Invalid 
argument): Internal error
After read some docs, I had set in the domu cfg the next:
   cpuid = 'host,xsave=0'

With this, the domu appears that is migrated. But in the next dom0, the 
domu get kernel errors and do not work:
[   48.786638] xen:grant_table: Grant tables using version 1 layout
[   48.786638] Using NULL legacy PIC
[   48.786614] PM: noirq restore of devices complete after 0.118 msecs
[   48.786614] PM: early restore of devices complete after 0.052 msecs
[   48.794780] invalid opcode: 0000 [#1] SMP
[   48.794790] Modules linked in: xfs libcrc32c xen_netfront 
xen_blkfront crct10dif_pclmul crct10dif_common crc32c_intel
[   48.794808] CPU: 1 PID: 2236 Comm: kworker/1:2 Not tainted 
3.16-3-amd64 #1 Debian 3.16.5-1
[   48.794823] Workqueue: events linkwatch_event
................

In both directions, in that hardware, the live migrating  process was Ok.
Now, I can not get work.

Any pointer, please.


PS: the hardware for two dom0s is:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Xeon(R) CPU           E5405  @ 2.00GHz
...

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 62
model name      : Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
....


Regards,
AgustÃn

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