Description of problem:

SPM start fails as host fails to acquire resource on pool stating that resource is already locked, problem is, its not, and resource is not locked. 

771aa94b-7d56-4dde-9650-9bb25f58a3cd::DEBUG::2011-05-01 15:38:50,609::persistentDict::208::Storage.PersistentDict::(refresh) read lines (LvMetadataRW)=['CLASS=
Data', 'DESCRIPTION=PG-NEG-1', 'IOOPTIMEOUTSEC=10', 'LEASERETRIES=3', 'LEASETIMESEC=60', 'LOCKPOLICY=', 'LOCKRENEWALINTERVALSEC=5', 'MASTER_VERSION=1', 'POOL_D
ESCRIPTION=PG-iSCS-Neg', 'POOL_DOMAINS=99c8e8a3-949e-4c10-9078-b916471f51c6:Active', 'POOL_SPM_ID=-1', 'POOL_SPM_LVER=0', 'POOL_UUID=4004bae1-9a5d-4dd1-a13c-98
f77cf58cbf', 'PV0=pv:1RH-NEG-00003,uuid:B1I5bd-CF5T-RyK7-4SFB-DA87-MwSS-LHtlcZ,pestart:0,pecount:158,mapoffset:0', 'ROLE=Master', 'SDUUID=99c8e8a3-949e-4c10-90
78-b916471f51c6', 'TYPE=ISCSI', 'VERSION=0', 'VGUUID=YDd1YG-4tz9-3KBu-6sHG-r69u-s92p-ZQIBPp', '_SHA_CKSUM=31a8c82eeb41b9cd50b010927aff49c127ea5bdd']
771aa94b-7d56-4dde-9650-9bb25f58a3cd::ERROR::2011-05-01 15:38:50,610::task::855::TaskManager.Task::(_setError) Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 863, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/storage/task.py", line 300, in run
    return self.cmd(*self.argslist, **self.argsdict)
  File "/usr/share/vdsm/storage/spm.py", line 509, in start
    pool.acquireClusterLock()
  File "/usr/share/vdsm/storage/sp.py", line 200, in acquireClusterLock
    msd.acquireClusterLock(self.id)
  File "/usr/share/vdsm/storage/sd.py", line 363, in acquireClusterLock
    self._clusterLock.acquire(hostID)
  File "/usr/share/vdsm/storage/safelease.py", line 53, in acquire
    raise se.DomainAlreadyLocked(self._sdUUID)
DomainAlreadyLocked: Cannot acquire lock, resource marked as locked: ('99c8e8a3-949e-4c10-9078-b916471f51c6',)

metadata: 

1+0 records in
1+0 records out
2048 bytes (2.0 kB) copied, 0.00224396 s, 913 kB/s
CLASS=Data
DESCRIPTION=PG-NEG-1
IOOPTIMEOUTSEC=10
LEASERETRIES=3
LEASETIMESEC=60
LOCKPOLICY=
LOCKRENEWALINTERVALSEC=5
MASTER_VERSION=1
POOL_DESCRIPTION=PG-iSCS-Neg
POOL_DOMAINS=99c8e8a3-949e-4c10-9078-b916471f51c6:Active
POOL_SPM_ID=-1
POOL_SPM_LVER=0
POOL_UUID=4004bae1-9a5d-4dd1-a13c-98f77cf58cbf
PV0=pv:1RH-NEG-00003,uuid:B1I5bd-CF5T-RyK7-4SFB-DA87-MwSS-LHtlcZ,pestart:0,pecount:158,mapoffset:0
ROLE=Master
SDUUID=99c8e8a3-949e-4c10-9078-b916471f51c6
TYPE=ISCSI
VERSION=0
VGUUID=YDd1YG-4tz9-3KBu-6sHG-r69u-s92p-ZQIBPp
_SHA_CKSUM=31a8c82eeb41b9cd50b010927aff49c127ea5bdd


repro steps:

- used command dmsetup remove_all