PJ40719: AN OPR-4 SYSTEM ERROR OCCURS OUT OF SEGMENT GENOPS.C DURING HTTP CLIENT PROCESSING- OPENSOURCE

GLIBC and LIBSTDC++ downloads for z/TPF

APAR status

• Closed as program error.

Error description

• See Problem Summary.
  

Local fix

• na
  

Problem summary

• APAR NUMBER:  PJ40719
  PRODUCT:  z/TPF
  FUNCTIONAL AREA:  Open source C library
  SHIPPED IN PUT:  10
  
  ABSTRACT:
  An OPR-4 (000004) system error might occur out of genops.c when
  opening or closing folders in a threaded environment.
  
  PACKAGE CONTENTS:
  Source Segments:
  None.
  
  Object Only Binaries:
  None.
  
  Configuration Independent Binaries:
  None.
  
  Support Files:
  None.
  
  OTHER BINARIES TO BUILD: YES
  (C) opensource/include/bits/libc-lock.h
  (C) opensource/glibc/obj/genops.o
  (C) opensource/stdlib/libCISO.so
  (C) opensource/stdload/CISO.so
  
  COMMENTS:
  The File Stream List in the CISO library (part of the I/O
  support for glibc) is not thread safe. When opening and closing
  new files in threads, corruption might occur in the File Stream
  List. The implementation of the File Stream processing, which
  makes locking calls, is located in genops.c.
  

Problem conclusion

• SOLUTION:
  z/TPF pthread mutex lock and unlock calls were added to the
  libio macros, which are available for coding platform-specific
  locking APIs.
  
  COREQS: NO
  None.
  
  MIGRATION CONSIDERATIONS: NO
  None.
  
  BUILD COMMANDS AND INSTRUCTIONS: YES
  #maketpf commands for linux
  maketpf -f cisohdrs opensource/include/bits/libc-lock.h
  maketpf -f CISO genops.o
  maketpf CISO link TPF_VERIFY_LINK_REFS=NO
  maketpf CISO link
  
  UPDATED INFORMATION UNITS: NO
  None.
  
  See your IBM representative if you need additional information.
  
  DOWNLOAD INSTRUCTIONS:
  
  
  APAR URL:
  http://www.ibm.com/software/htp/tpf/ztpfmaint/put10/PJ40719.htm
  
  http://www.ibm.com/software/htp/tpf/ztpfmaint/runtimelib.html
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  Z/TPF

• Fixed component ID

  5748T1501

Applicable component levels

• R110 PSY

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