RE: FW: [Xen-users] Standard VM live migration OK but Windows GPLPV VM livemigration broken

["Robert Dunkley" <Robert@xxxxxxxxx>]

Hi,

I'm using Centos 5.2 with OFED 1.3 (Infiniband Drivers), Xen 3.3.0 from
Gitco RPM and DRBD 8.2.6 installed. I have always installed the VMs as
full HVM and modified them later for PV. I used an rpm called
kmod-xenpv-0.1-10.el4.centos.x86_64 to change the Centos 4.7 HVM to
para, it gave a good increase in performance but unfortunately a
suitable KMod does not seem to be available for Centos 5.2 yet. 

Below are the Xen logs during transfer of a PV VM. Does anything look
out of place?

Thanks,

Rob

Sending Dom0:
[2009-01-21 14:19:33 11509] DEBUG (XendCheckpoint:103) [xc_save]:
/usr/lib64/xen/bin/xc_save 50 15 0 0 5
[2009-01-21 14:19:33 11509] INFO (XendCheckpoint:403) xc_save: could not
read suspend event channel
[2009-01-21 14:19:39 11509] INFO (XendCheckpoint:403) Saving memory
pages: iter  1: sent 982721, skipped 287, delta 6046ms, dom0 47%, target
0%, sent 5326Mb/s, dirtied 2Mb/s 503 pages
[2009-01-21 14:19:39 11509] INFO (XendCheckpoint:403) Saving memory
pages: iter  2: sent 509, skipped 0, delta 23ms, dom0 65%, target 0%,
sent 725Mb/s, dirtied 18Mb/s 13 pages
[2009-01-21 14:19:39 11509] INFO (XendCheckpoint:403) Saving memory
pages: iter  3: sent 0, skipped 13, Start last iteration
[2009-01-21 14:19:39 11509] DEBUG (XendCheckpoint:374) suspend
[2009-01-21 14:19:39 11509] DEBUG (XendCheckpoint:106) In
saveInputHandler suspend
[2009-01-21 14:19:39 11509] DEBUG (XendCheckpoint:108) Suspending 15 ...
[2009-01-21 14:19:39 11509] DEBUG (XendDomainInfo:472)
XendDomainInfo.shutdown(suspend)
[2009-01-21 14:19:39 11509] DEBUG (XendDomainInfo:1443)
XendDomainInfo.handleShutdownWatch

Receiving Dom0:
[2009-01-21 14:19:34 11571] DEBUG (DevController:124) DevController:
writing {'bridge': 'lanbr', 'domain': 'dns2', 'handle': '1', 'uuid':
'48bac5cb-2332-8ba8-8d59-484bb2969c59', 'script':
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3e:44:d3:a9',
'frontend-id': '13', 'state': '1', 'online': '1', 'frontend':
'/local/domain/13/device/vif/1'} to /local/domain/0/backend/vif/13/1.
[2009-01-21 14:19:34 11571] DEBUG (XendDomainInfo:1359) Storing domain
details: {'console/port': '3', 'name': 'dns2', 'console/limit':
'1048576', 'image/suspend-cancel': '1', 'domid': '13', 'vm':
'/vm/9ef8a7c9-efc1-73c7-40c1-b3013c2f1336', 'cpu/0/availability':
'online', 'memory/target': '524288',
'control/platform-feature-multiprocessor-suspend': '1', 'console/type':
'ioemu', 'store/port': '2'}
[2009-01-21 14:19:34 11571] INFO (XendCheckpoint:229) restore hvm domain
13, apic=1, pae=1
[2009-01-21 14:19:34 11571] DEBUG (image:300) Stored a VNC password for
vfb access
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: boot, val: c
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: fda, val: None
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: fdb, val: None
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: soundhw, val: None
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: localtime, val: 0
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: serial, val: pty
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: std-vga, val: 0
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: isa, val: 0
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: acpi, val: 1
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: usb, val: 0
[2009-01-21 14:19:34 11571] DEBUG (image:743) args: usbdevice, val: None
[2009-01-21 14:19:34 11571] DEBUG (XendCheckpoint:247)
restore:shadow=0x5, _static_max=0x20000000, _static_min=0x0,
[2009-01-21 14:19:34 11571] DEBUG (balloon:132) Balloon: 23809136 KiB
free; need 537600; done.
[2009-01-21 14:19:34 11571] DEBUG (XendCheckpoint:264) [xc_restore]:
/usr/lib64/xen/bin/xc_restore 4 13 2 3 1 1 1
[2009-01-21 14:19:34 11571] INFO (XendCheckpoint:403) xc_domain_restore
start: p2m_size = f2021
[2009-01-21 14:19:34 11571] INFO (XendCheckpoint:403) Reloading memory
pages:   0%

-----Original Message-----
From: Fajar A. Nugraha [mailto:fajar@xxxxxxxxx] 
Sent: 21 January 2009 14:07
To: Robert Dunkley
Cc: xen-users
Subject: Re: FW: [Xen-users] Standard VM live migration OK but Windows
GPLPV VM livemigration broken

On Wed, Jan 21, 2009 at 7:35 PM, Robert Dunkley <Robert@xxxxxxxxx>
wrote:
> Sorry, a correction, it seems none of the Paravirt machines will live
> migrate (Centos PVs act in same way)

Now that's weird. What OS/Xen combo are you using? Have you test it
with RHEL/CentOS 5.2 PV domUs?

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