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CCS6 tracepod automation: TraceCompMgr-IceStorm: Berkeley DB errors

Hi,

during our trace pod automation (CCS6/javascript) we sporadically observe a problem after more or less everything has been finished.

014-11-19 19:19:59 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": fsync Stale NFS file handle ]
2014-11-19 19:19:59 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": fsync Stale NFS file handle ]
2014-11-19 19:19:59 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: Stale NFS file handle ]
2014-11-19 19:19:59 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:21:07 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:21:07 DEBUG : TB_038: Tracepod Automation: TraceCompMgr-IceStorm: warning: checkpoint on DbEnv "IceStorm" raised DbException: DbEnv::txn_checkpoint: DB_RUNRECOVERY: Fatal error, run database recovery
2014-11-19 19:23:07 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:23:07 DEBUG : TB_038: Tracepod Automation: TraceCompMgr-IceStorm: warning: checkpoint on DbEnv "IceStorm" raised DbException: DbEnv::txn_checkpoint: DB_RUNRECOVERY: Fatal error, run database recovery
2014-11-19 19:25:07 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:25:07 DEBUG : TB_038: Tracepod Automation: TraceCompMgr-IceStorm: warning: checkpoint on DbEnv "IceStorm" raised DbException: DbEnv::txn_checkpoint: DB_RUNRECOVERY: Fatal error, run database recovery
2014-11-19 19:27:07 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:27:07 DEBUG : TB_038: Tracepod Automation: TraceCompMgr-IceStorm: warning: checkpoint on DbEnv "IceStorm" raised DbException: DbEnv::txn_checkpoint: DB_RUNRECOVERY: Fatal error, run database recovery
2014-11-19 19:29:07 DEBUG : TB_038: Tracepod Automation: [ TraceCompMgr-IceStorm: Berkeley DB: DbEnv "IceStorm": PANIC: fatal region error detected; run recovery ]
2014-11-19 19:29:07 DEBUG : TB_038: Tracepod Automation: TraceCompMgr-IceStorm: warning: checkpoint on DbEnv "IceStorm" raised DbException: DbEnv::txn_checkpoint: DB_RUNRECOVERY: Fatal error, run database recovery

It happens after

script.traceWrite("trace done.");

during 

debugServer.stop();
script.traceEnd();

Do you've any idea what this means or how to avoid this problem?

Best Regards,

Florian.