IV67820: JVM MAY CRASH WHEN -XDUMP:EVENTS=CATCH IS USED

APAR status

• Closed as program error.

Error description

• Error Message: Unhandled exceptionType=Segmentation error
  vmState=0x00020002J9Generic_Signal_Number=00000004
  Signal_Number=0000000b Error_Value=00000000
  Signal_Code=00000001Handler1=00007FA282A4FDB0
  Handler2=00007FA2823975D0
  InaccessibleAddress=0000000000000000RDI=00007FA27C03D400
  RSI=00007FA27C3B7EB0 RAX=0000000000000000
  RBX=00007FA249919610RCX=00007FA283B08998 RDX=0000000099669966
  R8=00007FA283B08998 R9=00007FA2499198B0R10=00007FA27C284000
  R11=0000000000000000 R12=00007FA28087F8C0
  R13=0000000000000000R14=0000000000000000
  R15=0000000000000002RIP=00007FA28059F571 GS=0000 FS=0000
  RSP=00007FA2499194F0EFlags=0000000000210246 CS=0033
  RBP=00007FA2280059C8 ERR=0000000000000004TRAPNO=000000000000000E
  OLDMASK=0000000000000000 CR2=0000000000000000xmm0
  00007fa283b08a00 (f: 2209384960.000000, d: 6.933518e-310)xmm1
  0000000000000010 (f: 16.000000, d: 7.905050e-323)xmm2
  0000000000010001 (f: 65537.000000, d: 3.237958e-319)xmm3
  00007fa27c280f00 (f: 2083000064.000000, d: 6.933512e-310)xmm4
  00007fa2499199f0 (f: 1234278912.000000, d: 6.933470e-310)xmm5
  00007fa24ac74866 (f: 1254574208.000000, d: 6.933471e-310)xmm6
  00007fa2499199f0 (f: 1234278912.000000, d: 6.933470e-310)xmm7
  0000000000000008 (f: 8.000000, d: 3.952525e-323)xmm8
  402e22f5a0b1b980 (f: 2696002048.000000, d: 1.506828e+01)xmm9
  3ff0000000000000 (f: 0.000000, d: 1.000000e+00)xmm10
  3ec1000000000000 (f: 0.000000, d: 2.026558e-06)xmm11
  3d75474c359916f1 (f: 899225344.000000, d: 1.209543e-12)xmm12
  3ec45f484c480625 (f: 1279788544.000000, d: 2.428555e-06)xmm13
  bbf3a2b49db2a368 (f: 2645730048.000000, d: -6.652789e-20)xmm14
  402e7f9c1e980d00 (f: 513281280.000000, d: 1.524924e+01)xmm15
  0000000000000000 (f: 0.000000, d:
  0.000000e+00)Module=/bluebird/builds/bld_212885/sdk/xa6480/jre/l
  ib/amd64/default/libj9gc28.soModule_base_address=00007FA2803AC00
  0Target=2_80_20140912_212885 (Linux
  2.6.32-431.17.1.el6.x86_64)CPU=amd64 (2 logical CPUs)
  (0x1675b0000 RAM)
  .
  Stack Trace: N/A
  .
  

Local fix

• This issue only occurs if the JIT is in use, so -Xint will work
  around it.
  

Problem summary

• The JVM misinterprets the exception handler location if
  -Xdump:events=catch triggers in a JIT compiled exception
  handler.
  

Problem conclusion

• The JVM has been updated to use the correct location.
  .
  This APAR will be fixed in the following Java Releases:
     6 R1 SR8 FP3   (6.1.8.3)
     7 R1 SR2 FP10  (7.1.2.10)
     6    SR16 FP3  (6.0.16.3)
     7    SR8 FP10  (7.0.8.10)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the Service
  Refreshes and Fix Packs can be found at:
             https://www.ibm.com/developerworks/java/jdk/
  

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

• R270 PSY

     UP

• R600 PSY

     UP