PI86569: CRASH MAY OCCUR AFTER RUNNING A MAP WITH WORK FILES IN MEMORY

APAR status

• Closed as program error.

Error description

• A crash may occur in Core Engine after running a map with work
  files in memory.
  
  The following is an example stack trace:
  
  ==17678== Thread 12:
  ==17678== Invalid free() / delete / delete[] / realloc()
  ==17678==    at 0x4C2EDEB: free
  ==17678==    by 0x6747E29: FreePoolDS
  ==17678==    by 0x673FF10: ISFreeAll
  ==17678==    by 0x673AC4E: FreeInstance
  ==17678==    by 0x6735058: RunMercMap
  ==17678==    by 0x47DEB5: RunAllMaps
  ==17678==    by 0x48218E: RunMap
  ==17678==    by 0x45484A: DoRunExit
  ==17678==    by 0x451899: MercExitProcEx
  ==17678==    by 0x4996E9: MercExitProc
  ==17678==    by 0x67E9D32: CallExitProc
  ==17678==    by 0x67DEA81: FindOperand
  ==17678==    by 0x67E4057: FindOperand
  ==17678==    by 0x67DD98C: FindOperand
  ==17678==    by 0x67DD98C: FindOperand
  ...
  

Local fix

• ITXCQ - ITX00058162
  GM / VP
  Circumvention: Change map WorkSpace from Memory to File.
  

Problem summary

• Users Affected:
  ITX Transformation Extender customers who use work files in
  memory
  
  Problem Description:
  Crash (do to double memory free) after running a map. Work files
  have to be in memory, and the core engine has to have "unfound"
  enough objects that it needs to destroy an entire work file
  page.
  
  Platforms Affected:
  All
  

Problem conclusion

• Code has been modified to avoid the double free.
  
  Applies to:
  9.0.0.2
  
  Fixed in the next service packs and releases.
  
  To obtain the fix for this APAR:
  
  To see if the next service pack or product release is available,
  check the IBM Transformation Extender Downloads page:
  http://www.ibm.com/support/entry/portal/product/other_software/t
  ransformation_extender
  
  If the service pack or product release is available, download it
  from Fix Central:
  http://www.ibm.com/support/fixcentral/
  
  If the service pack or product release is not available and you
  require the APAR fix immediately, request a Limited Availability
  Interim Fix (LAIF) by opening a PMR:
  http://www.ibm.com/support/servicerequest/Home.action
  
  Prior to version 9.0.0, IBM Transformation Extender was called
  IBM WebSphere Transformation Extender.
  

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

  ITX

• Fixed component ID

  5724Q2300

Applicable component levels