IZ75310: CRASH DUE TO DIVIDE BY ZERO ERROR IN J9TIME_USEC_CLOCK()

APAR status

• Closed as program error.

Error description

• Error Message: A GPF is received when a user tries to launch
  JAVA on a Windows box.
  .
  Stack Trace: _alldiv+0x4b (lldiv.asm:120, 0x7FED801B
  <OSB>J9PRT24+0x1801b<CSB>)
  j9time_usec_clock+0x52 (j9time.c:76, 0x7FED46B2
  <OSB>J9PRT24+0x146b2<CSB>)
  TR_CompilationInfo::startCompilationThread+0x20
  (compilationthread.cpp:1444, 0x7F82A900
  <OSB>j9jit24+0xa900<CSB>)
  onLoadInternal+0x682 (rossa.cpp:1964, 0x7F847BC2
  <OSB>j9jit24+0x27bc2<CSB>)
  J9VMDllMain+0x4cf (rossa.cpp:879, 0x7F84816F
  <OSB>j9jit24+0x2816f<CSB>)
  runJ9VMDllMain+0xcd (jvminit.c:2483, 0x7FF169AD
  <OSB>j9vm24+0x269ad<CSB>)
  pool_do+0x54 (pool.c:432, 0x7FF381C4 <OSB>j9vm24+0x481c4<CSB>)
  runInitializationStage+0x55 (jvminit.c:2445, 0x7FF1AE25
  <OSB>j9vm24+0x2ae25<CSB>)
  protectedInitializeJavaVM+0x49d (jvminit.c:6512, 0x7FF1DB4D
  <OSB>j9vm24+0x2db4d<CSB>)
  j9sig_protect+0x41 (j9signal.c:144, 0x7FECBFA1
  <OSB>J9PRT24+0xbfa1<CSB>)
  initializeJavaVM+0x166 (jvminit.c:1089, 0x7FF1DDC6
  <OSB>j9vm24+0x2ddc6<CSB>)
  JNI_CreateJavaVM+0x6e (jniinv.c:101, 0x7FF0A39E
  <OSB>j9vm24+0x1a39e<CSB>)
  JNI_CreateJavaVM+0x8b0 (jvm.c:1526, 0x7FBD6830
  <OSB>jvm+0x6830<CSB>)
  handleAvailable+0x2c (io_util_md.c:295, 0x00402F6E
  <OSB>java+0x2f6e<CSB>)
  JNU_CallMethodByNameV+0xf7 (jni_util.c:295, 0x00403429
  <OSB>java+0x3429<CSB>)
  Java_java_io_WinNTFileSystem_getDriveDirectory+0x69
  (winntfilesystem_md.c:732, 0x00409615 <OSB>java+0x9615<CSB>)
  GetModuleHandleA+0xdf (0x77E6482F <OSB>kernel32+0x2482f<CSB>)
  .
  n/a
  

Local fix

• n/a
  

Problem summary

• The problem manifests when we read the high performance counter
  from Windows OS. If the value returned is less than 1000000 then
  we crash (due to divide by zero). The fix is applicable "only"
  on those systems where the value returned by
  QueryPerformanceFrequency() is lessthan 1000000
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  5.0.0 SR12
  .
  JVM has been updated to take care of this divide by zero
  scenario.
  .
  To obtain the fix:
  Install build 20100410 or later
  

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:

  IZ75314

Fix information

• Fixed component name

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R600 PSN

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