ORA-7445 [kpodpals] During DataPump Import
Last updated on NOVEMBER 28, 2016
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Information in this document applies to any platform.
***Checked for relevance on 22-Jan-2014***
You perform a DataPump import and this breaks with errors:
Copyright (c) 2003, 2005, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "SYSTEM"."SYS_IMPORT_FULL_01": system/******** directory=dpu
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
ORA-39014: One or more workers have prematurely exited.
ORA-39029: worker 1 with process name "DW01" prematurely terminated
ORA-31672: Worker process DW01 died unexpectedly.
Job "SYSTEM"."SYS_IMPORT_FULL_01" stopped due to fatal error at 09:23:32
The file alert.log contains:
ORA-7445: exception encountered: core dump [ACCESS_VIOLATION]
[__VInfreq__kpodpmop+7524] [PC:0x3121BE8] [ADDR:0x0] [UNABLE_TO_READ] 
-- On Unix/Linux
ORA-7445: exception encountered: core dump [kpodpals()+11332] [SIGSEGV]
[Address not mapped to object] [0x000000000]  
DataPump import (impdp) in version 11gR2 ends with:
Job "SYSTEM"."SYS_IMPORT_FULL_01" stopped due to fatal error at 09:29:24
No ORA-39014 ORA-39029 ORA-31672 are seen.
The alert.log contains:
[ADDR:0x0] [PC:0xC2B8C25] [Address not mapped to object] 
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