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  1. JDK
  2. JDK-8256385

C2: fatal error: modified node is not on IGVN._worklist

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    • Subcomponent:
    • Resolved In Build:
      b26

      Description

      The attached fuzzer test fails with the following fatal error.

      To reproduce:
      $ java -XX:CompileOnly=Test
      or
      $ java -Xmx1G -Xcomp -Xbatch -XX:-TieredCompilation -XX:CompileOnly=Test

       934 MergeMem === _ 1 407 1 1 1 1 1 1 1 1 683 [[]] { - - - - - - - - N683:java/lang/Class:exact+156 * } Memory: @BotPTR *+bot, idx=Bot; !orig=688 !jvms: Test::iMeth @ bci:169
      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/opt/mach5/mesos/work_dir/slaves/47535081-0322-4d83-bb78-f7e11abb86d0-S45878/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/c909db09-6c9b-402f-b3f3-aca8c6860a96/runs/991019b7-aa93-4076-a8df-1733e5f45dc3/workspace/open/src/hotspot/share/opto/phaseX.cpp:1074), pid=27513, tid=27526
      # fatal error: modified node is not on IGVN._worklist
      #
      # JRE version: Java(TM) SE Runtime Environment (16.0+24) (fastdebug build 16-ea+24-1553)
      ...........
      Command Line: -Xmx1G -Xcomp -Xbatch -XX:CompileOnly=Test Test
      ...........
      Current thread (0x00007f27c04842d0): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=27526, stack(0x00007f27986fb000,0x00007f27987fc000)]


      Current CompileTask:
      C2: 216 12 b 4 Test::iMeth (312 bytes)

      Stack: [0x00007f27986fb000,0x00007f27987fc000], sp=0x00007f27987f6aa0, free space=1006k
      Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0x15ecde0] PhaseIterGVN::init_verifyPhaseIterGVN()+0x140
      V [libjvm.so+0x15ee0a9] PhaseIterGVN::optimize()+0x19
      V [libjvm.so+0x9fb76a] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x6ca
      V [libjvm.so+0x9f68a6] Compile::Optimize()+0x6b6
      V [libjvm.so+0x9f9470] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, DirectiveSet*)+0x1820
      V [libjvm.so+0x82c6ee] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x1ce
      V [libjvm.so+0xa095f8] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xe08
      V [libjvm.so+0xa0a148] CompileBroker::compiler_thread_loop()+0x5a8
      V [libjvm.so+0x1886f56] JavaThread::thread_main_inner()+0x256
      V [libjvm.so+0x188dc10] Thread::call_run()+0x100
      V [libjvm.so+0x1570066] thread_native_entry(Thread*)+0x116

        Attachments

        1. FuzzerUtils.java
          13 kB
        2. hs_err_pid27131.log
          173 kB
        3. hs_err_pid27925.log
          170 kB
        4. Test.java
          10 kB

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              Assignee:
              thartmann Tobias Hartmann
              Reporter:
              chagedorn Christian Hagedorn
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                Dates

                Created:
                Updated:
                Resolved: