IZ90070: *WIN32* SEVERAL CRASHES IN SAME LOCATION IN JDWP.DLL

APAR status

• Closed as program error.

Error description

• Error Message: When debugging RAD from another instance of RAD
  the JVM crashed
  In javacore file following info can be found:
  An exception occurred attempting to access in-flight data.
  Stack Trace: "_jdwp_PacketDispatcher" J9VMThread:0x42126D00,
  j9thread_t:0x0039C494, java/lang/Thread:0x008F44B8, state:R,
  prio=10
  (native thread ID:0x1550, native priority:0xA,
  native
  policy:UNKNOWN)
  
             No Java callstack associated with this thread
  
             Native callstack:
  ?Execute@OwnedMonitorsHandler@ThreadReference@jdwp@@MAEHPAUJNIEn
  v_@@@Z+0
  x12c
   (0x7F37DB73 <OSB>jdwp+0xdb73<CSB>)
  ?Run@SyncCommandHandler@jdwp@@UAEHPAUJNIEnv_@@PAVCommandParser@2
  @@Z+0x5a
   (0x7F384590 <OSB>jdwp+0x14590<CSB>)
  ?ExecCommand@CommandDispatcher@jdwp@@QAEHPAUJNIEnv_@@PAVCommandP
  arser@2@
  @Z+0x119
   (0x7F38444D <OSB>jdwp+0x1444d<CSB>)
  ?Run@PacketDispatcher@jdwp@@IAEXPAUJNIEnv_@@@Z+0x30b
  (0x7F38A2B8 <OSB>jdwp+0x1a2b8<CSB>)
  ?StartFunction@PacketDispatcher@jdwp@@KGXPAU_jvmtiEnv@@PAUJNIEnv
  _@@PAX@Z
  +0x42
   (0x7F38A762 <OSB>jdwp+0x1a762<CSB>)
                 wrappedAgentThreadStart+0xb0 (jvmtithread.c:905,
  0x7FCF8860 <OSB>j9jvmti24+0x18860<CSB>)
                 j9sig_protect+0x41 (j9signal.c:144, 0x7FECC2E1
  <OSB>J9PRT24+0xc2e1<CSB>)
                 agentThreadStart+0x42 (jvmtithread.c:866,
  0x7FCF9122
  <OSB>j9jvmti24+0x19122<CSB>)
                 thread_wrapper+0xbf (j9thread.c:947, 0x7FFA3F2F
  <OSB>J9THR24+0x3f2f<CSB>)
                 _endthread+0xaa (0x7C34940F
  <OSB>msvcr71+0x940f<CSB>)
                 GetModuleFileNameA+0x1ba (0x7C80B729
  <OSB>kernel32+0xb729<CSB>)
  

Local fix

Problem summary

• The problem is caused when dubug one jvm from another jvm
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR10
  .
  The JDWP has been updated to prevent the crash from occurring
  when debug one jvm from another jvm
  .
  To obtain the fix:
  Install build 20101211 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:

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSN

     UP