[Xen-bugs] [Bug 1653] save/restore cannot work

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1653


dokter@xxxxxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dokter@xxxxxxxxxxxxx




------- Comment #1 from dokter@xxxxxxxxxxxxx  2010-09-01 01:58 -------
I ran into the same bug as it seems, so I'll provide some additional log
output. 
I am running Xen 4.0.1-RELEASE with a 2.6.32.19-xen pvops dom0 kernel on ubuntu
server 10.04.1. 
I tried save/restore/migrate on ubuntu PVMs stored on file image and on
drbd/lvm partition via kernel stored on dom0 filesystem and via pvgrub. The
result was always the same.

xm info:
--------
root@xen01:~# xm info
host                   : xen01
release                : 2.6.32.19-intel-xen
version                : #1 SMP Thu Aug 26 15:15:11 CEST 2010
machine                : x86_64
nr_cpus                : 16
nr_nodes               : 2
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2394
hw_caps                :
bfebfbff:2c100800:00000000:00001f40:029ee3ff:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 24566
free_memory            : 23242
node_to_cpu            : node0:0-3,8-11
                         node1:4-7,12-15
node_to_memory         : node0:11183
                         node1:12059
node_to_dma32_mem      : node0:2995
                         node1:0
max_node_id            : 1
xen_major              : 4
xen_minor              : 0
xen_extra              : .1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        : dummy=dummy dom0_mem=1024M
cc_compiler            : gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) 
cc_compile_by          : markd
cc_compile_domain      : 
cc_compile_date        : Wed Aug 25 15:44:49 CEST 2010
xend_config_format     : 4


/var/log/xen/xend.log:
---------------------
[2010-09-01 01:11:53 1476] DEBUG (XendCheckpoint:286) restore:shadow=0x0,
_static_max=0x10000000, _static_min=0x0,
[2010-09-01 01:11:53 1476] DEBUG (XendCheckpoint:305) [xc_restore]:
/usr/lib/xen/bin/xc_restore 30 32 1 2 0 0 0 0
[2010-09-01 01:11:53 1476] INFO (XendCheckpoint:423) xc_domain_restore start:
p2m_size = 10000
[2010-09-01 01:11:53 1476] INFO (XendCheckpoint:423) ERROR Internal error:
Could not lock memory for version hypercall (12 = Cannot allocate memory)
[2010-09-01 01:11:53 1476] INFO (XendCheckpoint:423) ERROR Internal error:
Unable to get platform info.
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:3053) XendDomainInfo.destroy:
domid=32
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2416) No device model
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2418) Releasing devices
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2424) Removing tap2/51713
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:1286)
XendDomainInfo.destroyDevice: deviceClass = tap2, device = tap2/51713
[2010-09-01 01:11:54 1476] DEBUG (DevController:649) deviceDestroyCallback
/local/domain/0/backend/vbd/32/51713/hotplug-status.
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2424) Removing tap2/51714
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:1286)
XendDomainInfo.destroyDevice: deviceClass = tap2, device = tap2/51714
[2010-09-01 01:11:54 1476] DEBUG (DevController:649) deviceDestroyCallback
/local/domain/0/backend/vbd/32/51714/hotplug-status.
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2424) Removing vif/0
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:1286)
XendDomainInfo.destroyDevice: deviceClass = vif, device = vif/0
[2010-09-01 01:11:54 1476] DEBUG (DevController:649) deviceDestroyCallback
/local/domain/0/backend/vbd/32/51714/hotplug-status.
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:2424) Removing console/0
[2010-09-01 01:11:54 1476] DEBUG (XendDomainInfo:1286)
XendDomainInfo.destroyDevice: deviceClass = console, device = console/0
[2010-09-01 01:11:54 1476] ERROR (XendCheckpoint:357)
/usr/lib/xen/bin/xc_restore 30 32 1 2 0 0 0 0 failed
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", line 309,
in restore
    forkHelper(cmd, fd, handler.handler, True)
  File "/usr/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", line 411,
in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib/xen/bin/xc_restore 30 32 1 2 0 0 0 0 failed
[2010-09-01 01:11:54 1476] ERROR (XendDomain:1175) Restore failed
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/xen/xend/XendDomain.py", line 1159, in
domain_restore_fd
    dominfo = XendCheckpoint.restore(self, fd, paused=paused,
relocating=relocating)
  File "/usr/lib/python2.6/dist-packages/xen/xend/XendCheckpoint.py", line 358,
in restore
    raise exn
XendError: /usr/lib/xen/bin/xc_restore 30 32 1 2 0 0 0 0 failed


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