HD65581: MEMORY ACCESS VIOLATION IN ASSEMBLY WHEN SYNCHRONIZING

APAR status

• Closed as program error.

Error description

• Memory access violation in assembly when
  synchronizing.
  .
  We have developed a dedicated test object that
  reproduces the crash we have on win_b64 in LMS
  Virtual.Lab when synchronizing after having
  replaced an assembly component by another one.
  .
  The test object also crashes when replayed using
  purify or memory check on win32.
  .
  Scenario:
  - Unzip the attached workspace and compile using
  B17 or B18 as PreReq.
  - Using mkodt -a -B purify, the result is the
  following:
  .
  [E] EXU: Unhandled exception {1 occurrence}
  Exception code: 0xc0000005 [Error: access
  violation writing to freed memory]
  Exception address: [CATSAM0Explicit.dll
  ip=0x0CDCA459]
  Filter: mainCRTStartup [crtexe.c:411]
  Exception location
  [CATSAM0Explicit.dll ip=0x0CDCA45A]
  CAAAssemblyTools::Synchronize(CATDocument
  const*) [caaassemblytools.cpp:249]
  .
  => HRESULT hr=spAsy->SetAssemblyAnalysis
  (ProductList2,ShapeList2);
  .
  CATDocument* pDoc=NULL;
  spContext->GetDocument(pDoc);
  SynchronizeAssembly(CATDocument *)
  [main.cpp:79]
  CAAAssemblyDefinition(CATUnicodeString
  const&,CATUnicodeString const&,CATUnicodeString
  const&,CATUnicodeString const&) [main.cpp:267]
  main [main.cpp:352]
  .
  - Using mkodt -a -B MemoryCheck, the free
  memory read and write errors are detected (see
  CAAAssemblyDefinition01_mc.txt for details).
  .
  You can find the complete results of Memory Check
  analysis on \\autrena2dsy\HOME\tmp\DSLEU05542
  \data\R18W25
  \CAATestFramework.tst\FunctionTests\Output\intel_
  a.
  .
  

Local fix

Problem summary

• Memory access violation in assembly when synchronizing
  Memory access violation in assembly when
  synchronizing.
  .
  We have developed a dedicated test object that
  reproduces the crash we have on win_b64 in LMS
  Virtual.Lab when synchronizing after having
  replaced an assembly component by another one.
  .
  The test object also crashes when replayed using
  purify or memory check on win32.
  .
  Scenario:
  - Unzip the attached workspace and compile using
  B17 or B18 as PreReq.
  - Using mkodt -a -B purify, the result is the
  following:
  .
   E  EXU: Unhandled exception {1 occurrence}
  Exception code: 0xc0000005  Error: access
  violation writing to freed memory
  Exception address:  CATSAM0Explicit.dll
  ip=0x0CDCA459
  Filter: mainCRTStartup  crtexe.c:411
  Exception location
   CATSAM0Explicit.dll ip=0x0CDCA45A
  CAAAssemblyTools::Synchronize(CATDocument
  const*)  caaassemblytools.cpp:249
  .
  => HRESULT hr=spAsy->SetAssemblyAnalysis
  (ProductList2,ShapeList2);
  .
  CATDocument* pDoc=NULL;
  spContext->GetDocument(pDoc);
  SynchronizeAssembly(CATDocument *)
   main.cpp:79
  CAAAssemblyDefinition(CATUnicodeString
  const&,CATUnicodeString const&,CATUnicodeString
  const&,CATUnicodeString const&)  main.cpp:267
  main  main.cpp:352
  .
  - Using mkodt -a -B MemoryCheck, the free
  memory read and write errors are detected (see
  CAAAssemblyDefinition01_mc.txt for details).
  .
  You can find the complete results of Memory Check
  analysis on \\autrena2dsy\HOME\tmp\DSLEU05542
  \data\R18W25
  \CAATestFramework.tst\FunctionTests\Output\intel_
  a.
  .
  

Problem conclusion

• THIS PROBLEM WILL BE FIXED ON CATIA VERSION
  5 RELEASE 19 GA level.
  NOTE THAT THIS PROBLEM WILL ALSO BE FIXED
  ON V5R18SP01.
  .
  Incident Diagnosis:
  When unloading an assembled analysis, all its
  children were scanned and destroyed. However,
  when removing the parent-child link after the
  destruction, we had to create an object that pointed
  the child analysis, which does not exist anymore.
  .
  Correction Explanation:
  The child analysis is destroyed after the link
  removal.
  .
  Answer and By-Pass:
  None.
  .
  

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

  CATIA V5 NT>XP

• Fixed component ID

  569151000

Applicable component levels

• R518 PSN SP51802

     UP07/11/13 I 1000