[Xen-bugs] [Bug 1126] HVM local live migration does not work

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1126





------- Comment #2 from yongkang.you@xxxxxxxxx  2007-12-20 04:59 -------
> I can't reproduce this behaviour.  Can you please attach the full xend.log 
> from
> a failed save/restore or migrate operation?

Hi Tim,

Here is the log for local migration failure. 

[2007-12-20 20:46:23 7618] INFO (XendDomain:1165) Domain ExampleHVMDomain (2)
unpaused.
[2007-12-20 20:46:48 7618] DEBUG (XendCheckpoint:89) [xc_save]:
/usr/lib64/xen/bin/xc_save 21 2 0 0 5
[2007-12-20 20:46:48 7618] DEBUG (XendDomainInfo:217)
XendDomainInfo.restore(['domain', ['domid', '2'], ['on_crash', 'restart'],
['uuid', '9cd9d6e9-add8-167f-bb5b-4531606d0716'], ['bootloader_args'],
['vcpus', '2'], ['name', 'ExampleHVMDomain'], ['on_poweroff', 'destroy'],
['on_reboot', 'restart'], ['bootloader'], ['maxmem', '512'], ['memory', '512'],
['shadow_memory', '6'], ['vcpu_avail', '3'], ['features'], ['on_xend_start',
'ignore'], ['on_xend_stop', 'ignore'], ['start_time', '1198154781.85'],
['cpu_time', '10.795995728'], ['online_vcpus', '2'], ['image', ['hvm',
['kernel', '/usr/lib/xen/boot/hvmloader'], ['acpi', '1'], ['apic', '1'],
['boot', 'c'], ['device_model', '/usr/lib64/xen/bin/qemu-dm'], ['display',
'localhost:1.0'], ['isa', '0'], ['localtime', '0'], ['monitor', '0'],
['nographic', '0'], ['pae', '1'], ['rtc_timeoffset', '0'], ['serial', 'pty'],
['sdl', '1'], ['stdvga', '0'], ['usb', '0'], ['vnc', '0'], ['timer_mode', '3'],
['vncunused', '1'], ['xauthority', '/root/.Xauthority'], ['pci', []],
['guest_os_type', 'default'], ['notes', ['SUSPEND_CANCEL', '1']]]], ['status',
'2'], ['state', 'r-----'], ['store_mfn', '131070'], ['device', ['vif',
['bridge', 'xenbr0'], ['uuid', '6a11892f-1835-2f31-ef31-cd91aa660148'],
['script', 'vif-bridge'], ['mac', '00:16:3e:6f:c2:d4'], ['type', 'ioemu'],
['backend', '0']]], ['device', ['vbd', ['uname', 'file:/root/fc6.img'],
['uuid', '38ae099f-5d47-30ed-08c1-73132f9d7142'], ['mode', 'w'], ['dev',
'hda:disk'], ['backend', '0'], ['bootable', '1']]], ['device', ['vbd', ['uuid',
'0338ffab-9600-427c-da4b-fbf93c42a4ff'], ['mode', 'r'], ['dev', 'hdc:cdrom'],
['backend', '0'], ['bootable', '0']]], ['device', ['console', ['protocol',
'vt100'], ['location', '4'], ['uuid',
'6b67963c-7afb-4121-99ba-068538c5fc3e']]]])
[2007-12-20 20:46:48 7618] ERROR (XendDomain:1142) Restore failed
Traceback (most recent call last):
  File "/usr/lib64/python/xen/xend/XendDomain.py", line 1134, in
domain_restore_fd
    return XendCheckpoint.restore(self, fd, paused=paused)
  File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 177, in restore
    dominfo = xd.restore_(vmconfig)
  File "/usr/lib64/python/xen/xend/XendDomain.py", line 498, in restore_
    dominfo = XendDomainInfo.restore(config)
  File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 218, in restore
    vm = XendDomainInfo(XendConfig.XendConfig(sxp_obj = config),
  File "/usr/lib64/python/xen/xend/XendConfig.py", line 276, in __init__
    self._sxp_to_xapi(sxp_obj)
  File "/usr/lib64/python/xen/xend/XendConfig.py", line 656, in _sxp_to_xapi
    cfg = self._parse_sxp(sxp_cfg)
  File "/usr/lib64/python/xen/xend/XendConfig.py", line 542, in _parse_sxp
    self.device_add(dev_type, cfg_sxp = config, target = cfg)
  File "/usr/lib64/python/xen/xend/XendConfig.py", line 1121, in device_add
    self.device_duplicate_check(dev_type, dev_info, target)
  File "/usr/lib64/python/xen/xend/XendConfig.py", line 993, in
device_duplicate_check
    blkdev_file = blkdev_uname_to_file(dev_uname)
  File "/usr/lib64/python/xen/util/blkif.py", line 81, in blkdev_uname_to_file
    return _parse_uname(uname)[0]
  File "/usr/lib64/python/xen/util/blkif.py", line 71, in _parse_uname
    if uname.find(":") != -1:
AttributeError: 'NoneType' object has no attribute 'find'
[2007-12-20 20:46:48 7618] INFO (XendCheckpoint:365) Saving memory pages: iter
1   0%ERROR Internal error: Error when writing to state file (5) (errno 104)
[2007-12-20 20:46:48 7618] INFO (XendCheckpoint:365) Save exit rc=1
[2007-12-20 20:46:48 7618] ERROR (XendCheckpoint:141) Save failed on domain
ExampleHVMDomain (2).
Traceback (most recent call last):
  File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 109, in save
    forkHelper(cmd, fd, saveInputHandler, False)
  File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 353, in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 21 2 0 0 5 faile(In reply to comment #1)


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