Xen users - Mar 2009 - Successfully running VM, subsequently startup gives this error -- VmError: Boot loader didn''t return any data!

Hi
I have configured few VMs with RHEL5,32 bit, but some VMs
after successful stop/restart few times, suddenly they start giving
following error from "xm create vm1.cfg" startup.
----
Error: (''c618d493-a696-7637-333d-bd891fa41ac2'',
''VM_metrics'')
----

If i replace system.img, they starts working again. This is what i see in
xend.log file.
This happens randomly to any VM i have, no changes are happening before this
error situation.

________________________________
 2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:85)
XendDomainInfo.create([''vm'', , , , , , , , ,
, [''image'', , [''device'',
[''vbd'', , , , [''device'',
[''vbd'', , , ,
[''device'', [''vbd'', , , ,
[''device'', [''vbd'', , , ,
[''device'', [''vif'', ,
[''device'', , [''device'',
[''vfb'', , , , )
2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:1534)
XendDomainInfo.constructDomain
2009-03-10 20:51:50 2861 DEBUG (balloon:116) Balloon: 1943800 KiB free; need
2048; done.
2009-03-10 20:51:50 2861 DEBUG (XendDomain:434) Adding Domain: 3
2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:1600) XendDomainInfo.initDomain:
3 256
2009-03-10 20:51:50 8138 DEBUG (XendBootloader:100) Launching bootloader as .
2009-03-10 20:51:50 2861 ERROR (XendBootloader:171) Boot loader didn''t
return any data!
2009-03-10 20:51:50 2861 ERROR (XendDomainInfo:430) VM start failed
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 410, in start
XendTask.log_progress(31, 60, self._initDomain)
File "/usr/lib/python2.4/site-packages/xen/xend/XendTask.py", line
209, in log_progress
retval = func(*args, **kwds)
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1602, in _initDomain
self._configureBootloader()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1969, in _configureBootloader
bootloader_args, kernel, ramdisk, args)
File "/usr/lib/python2.4/site-packages/xen/xend/XendBootloader.py",
line 172, in bootloader
raise VmError, msg
VmError: Boot loader didn''t return any data!
2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:1804) XendDomainInfo.destroy:
domid=3
2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:1823)
XendDomainInfo.destroyDomain(3)
2009-03-10 20:51:50 2861 ERROR (XendDomainInfo:90) Domain construction failed
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 88, in create
vm.start()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 410, in start
XendTask.log_progress(31, 60, self._initDomain)
File "/usr/lib/python2.4/site-packages/xen/xend/XendTask.py", line
209, in log_progress
retval = func(*args, **kwds)
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1602, in _initDomain
self._configureBootloader()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1969, in _configureBootloader
bootloader_args, kernel, ramdisk, args)
File "/usr/lib/python2.4/site-packages/xen/xend/XendBootloader.py",
line 172, in bootloader
raise VmError, msg
VmError: Boot loader didn''t return any data!
2009-03-10 20:51:50 2861 DEBUG (XendDomainInfo:1804) XendDomainInfo.destroy:
domid=None
2009-03-10 20:51:50 2861 ERROR (xmlrpclib2:178) Internal error handling
xend.domain.create
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/util/xmlrpclib2.py", line
131, in _marshaled_dispatch
response = self._dispatch(method, params)
File "/usr/lib/python2.4/SimpleXMLRPCServer.py", line 406, in
_dispatch
return func(*params)
File
"/usr/lib/python2.4/site-packages/xen/xend/server/XMLRPCServer.py",
line 72, in domain_create
info = XendDomain.instance().domain_create(config)
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line
920, in domain_create
dominfo = XendDomainInfo.create(config)
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 91, in create
vm.destroy()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1808, in destroy
self._cleanupVm()
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 2007, in _cleanupVm
self.metrics.destroy()
File "/usr/lib/python2.4/site-packages/xen/xend/XendBase.py", line 94,
in destroy
XendAPIStore.deregister(self.get_uuid(), self.getClass())
File "/usr/lib/python2.4/site-packages/xen/xend/XendAPIStore.py", line
36, in deregister
del __classes(uuid, type)
KeyError: (''c618d493-a696-7637-333d-bd891fa41ac2'',
''VM_metrics'')
________________________________
 
Appreciate any hint/help
Thanks
Ken


      

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