ORA-03106 SAP Export

Hi ,

We are performing test for NW 7.3 system copy ,

SAP NW PI 7.3 , Oracle 11 , Sun Solaris SPARC

While SAP export we are getting fallowing error,

SAPPOOL.log

/usr/sap/PI1/SYS/exe/uc/sun_64/R3load: START OF LOG: 20110919195047

/usr/sap/PI1/SYS/exe/uc/sun_64/R3load: sccsid @(#) $Id: //bas/720_REL/src/R3ld/R3load/R3ldmain.c#13 $ SAP
/usr/sap/PI1/SYS/exe/uc/sun_64/R3load: version R7.20/V1.4 [UNICODE]
Compiled Sep 10 2011 04:27:46
/usr/sap/PI1/SYS/exe/uc/sun_64/R3load -e SAPPOOL.cmd -datacodepage 4102 -l SAPPOOL.log -stop_on_error 

(DB) INFO: connected to DB
(DB) INFO: DbSlControl(DBSL_CMD_NLS_CHARACTERSET_GET): UTF8
(DB) INFO: Export without hintfile
(GSI) INFO: dbname   = "PI120110914090918                                                                                "
(GSI) INFO: vname    = "ORACLE                          "
(GSI) INFO: hostname = "edssap01                                                        "
(GSI) INFO: sysname  = "SunOS"
(GSI) INFO: nodename = "edssap01"
(GSI) INFO: release  = "5.10"
(GSI) INFO: version  = "Generic_127127-11"
(GSI) INFO: machine  = "sun4v"
(GSI) INFO: instno   = "0000000000"


(RTF) ########## WARNING ###########
	Without ORDER BY PRIMARY KEY the exported data may be unusable for some databases

DbSl Trace: Error 3106 in stmt_fetch() from oci_execute_stmt(), orpc=191

DbSl Trace: ORA-03106 occurred when executing SQL stmt (parse error offset=0)

(EXP) ERROR: DbSlExeRead failed
  rc = 99, table "ATAB"
  (SQL error 3106)
  error message returned by DbSl:
ORA-03106: fatal two-task communication protocol error
(DB) INFO: disconnected from DB

/usr/sap/PI1/SYS/exe/uc/sun_64/R3load: job finished with 1 error(s)
/usr/sap/PI1/SYS/exe/uc/sun_64/R3load: END OF LOG: 20110919195048

Please help me ,