IV35580: SEGMENTATION FAULT IN J9BCV_VERIFYBYTECODES()

APAR status

• Closed as program error.

Error description

• Error Message: A segmentation fault occurs in
  j9bcv_verifyBytecodes after the system has exhausted native
  memory.
  .
  Stack Trace: XMTHREADINFO3           Java callstack:
  4XESTACKTRACE                at
  java/lang/J9VMInternals.verifyImpl(Native Method)
  4XESTACKTRACE                at
  java/lang/J9VMInternals.verify(J9VMInternals.java:93(Compiled
  Code))
  4XESTACKTRACE                at
  java/lang/J9VMInternals.verify(J9VMInternals.java:91(Compiled
  Code))
  4XESTACKTRACE                at
  java/lang/J9VMInternals.verify(J9VMInternals.java:91(Compiled
  Code))
  4XESTACKTRACE                at
  java/lang/J9VMInternals.initialize(J9VMInternals.java:170(Compil
  ed Code))
  4XESTACKTRACE                at
  java/lang/J9VMInternals.newInstanceImpl(Native Method)
  4XESTACKTRACE                at
  java/lang/Class.newInstance(Class.java:1557(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/xtq/xslt/jaxp/TemplatesImpl.getTransletInstance(Bytecode
  PC:41(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/xtq/xslt/jaxp/TemplatesImpl.newTransformer(Bytecode
  PC:5(Compiled Code))
  5XESTACKTRACE                   (entered lock:
  com/ibm/xtq/xslt/jaxp/TemplatesImpl@0x3F86FC40, entry count: 1)
  4XESTACKTRACE                at
  com/ibm/xtq/xslt/jaxp/AbstractTransformerFactory.newTransformer(
  Bytecode PC:11(Compiled Code))
  4XESTACKTRACE                at
  testcases/xml/xalan/Examples.exampleUseAssociated(Examples.java:
  992)
  4XESTACKTRACE                at
  testcases/xml/xalan/Examples.run(Examples.java:305(Compiled
  Code))
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/workunitadapters/JGrinderWorkUnit.runWork(
  JGrinderWorkUnit.java:441)
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/threads/WorkUnitRunner.run(WorkUnitRunner.
  java:113)
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/threads/pooling/PooledRunnable.runWork(Poo
  ledRunnable.java:170)
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/threads/pooling/PooledRunnable.getAndRunWo
  rk(PooledRunnable.java:136(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/threads/pooling/PooledRunnable.run(PooledR
  unnable.java:93)
  4XESTACKTRACE                at
  com/ibm/jtc/test/jltf/threads/PooledLangThreadFactory$JavaLangPo
  oledThread.run(PooledLangThreadFactory.java:152)
  3XMTHREADINFO3           Native callstack:
  4XENATIVESTACK
  protectedIntrospectBacktraceSymbols+0x17e (, 0x22D945FE)
  4XENATIVESTACK               j9sig_protect+0x67a ( 0x22DAF60A)
  4XENATIVESTACK
  j9introspect_backtrace_symbols+0x17e (, 0x22D94536)
  4XENATIVESTACK
  JavaCoreDumpWriter::writeThreadSection()+0x724 (, 0x22E92574)
  4XENATIVESTACK               protectedWriteSection+0x14 (
  0x22E8E424)
  4XENATIVESTACK               j9sig_protect+0x67a ( 0x22DAF60A)
  4XENATIVESTACK               ( 0x22E8D510)
  4XENATIVESTACK               runJavadump+0x18 (, 0x22E9A680)
  4XENATIVESTACK               doJavaDump+0x4fa (0x22E71932)
  4XENATIVESTACK               protectedDumpFunction+0x1e (,
  0x22E71B9E)
  4XENATIVESTACK               j9sig_protect+0x67a ( 0x22DAF60A)
  4XENATIVESTACK               runDumpAgent+0x362 (, 0x22E74952)
  4XENATIVESTACK               triggerDumpAgents+0x496
  (0x22EA7FCE)
  4XENATIVESTACK               generateDiagnosticFiles+0x1d0 (,
  0x22C4A138)
  4XENATIVESTACK               j9sig_protect+0x67a ( 0x22DAF60A)
  4XENATIVESTACK               structuredSignalHandler+0x1b0 (
  0x22C4B9D0)
  4XENATIVESTACK               masterSynchSignalHandler+0x20a (
  0x22DAD75A)
  4XENATIVESTACK               (, 0x214349E4)
  4XENATIVESTACK               __zerros+0x1d8 (, 0x21433EC8)
  4XENATIVESTACK               CEEVROND+0x1200 (, 0x0C5F96E8)
  4XENATIVESTACK               (, 0x0C4EC6D8
  <OSB>CEEHDSP+0xd60<CSB>)
  4XENATIVESTACK               (, 0x0C4FAE6E
  <OSB>CEEHRNUH+0x96<CSB>)
  4XENATIVESTACK               j9bcv_verifyBytecodes+0xb4e (,
  0x2420C3B6)
  4XENATIVESTACK               SENDINITIALIZE+0x1ccf1d8 (,
  0x248F0620)
  4XENATIVESTACK               RUNJAVATHREAD+0x1cd1a1e (,
  0x248EFF06)
  4XENATIVESTACK               javaProtectedThreadProc+0xd2 (,
  0x22CAF3A2)
  4XENATIVESTACK               j9sig_protect+0x67a ( 0x22DAF60A)
  4XENATIVESTACK               javaThreadProc+0x54 ( 0x22CB1714)
  4XENATIVESTACK               thread_wrapper+0x3ec (, 0x22D2087C)
  4XENATIVESTACK               CEEVROND+0x1200 (, 0x0C5F96E8)
  4XENATIVESTACK               (, 0x00B9EF12
  <OSB>CEEOPCMM+0x96a<CSB>)
  .
  The following tracepoint will have recently fired if this is the
  same issue:
  15:54:37.686878750 *0x4882a300       j9vm.302  Entry
  >setCurrentExceptionUTF exceptionNumber=33554443
  detailUTF=verifier unable to allocate native memory
  

Local fix

Problem summary

• The issue is caused by a native memory allocation failure in the
  verifier.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR4
  6.0.1 SR5
  6.0.0 SR13
  .
  The JVM has been updated to correctly handle the case where a
  native memory allocation fails in the verifier.
  

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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

     UP

• R600 PSY

     UP