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  1. JDK
  2. JDK-8271055

Crash during deoptimization with "assert(bb->is_reachable()) failed: getting result from unreachable basicblock" with -XX:+VerifyStack

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      Description

      The attached Java Fuzzer test crashes with the following assertion:

      To reproduce:
      $ java -XX:+VerifyStack Test.java
      $ java -XX:+VerifyStack Reduced.java

      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S124123/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/57294efe-464f-4c0a-b55a-fd67bfa32e7b/runs/71c23d41-87fd-4de4-92b5-4ba130c3e1dd/workspace/open/src/hotspot/share/oops/generateOopMap.cpp:2216), pid=2766569, tid=2766570
      # assert(bb->is_reachable()) failed: getting result from unreachable basicblock
      #
      # JRE version: Java(TM) SE Runtime Environment (18.0+7) (fastdebug build 18-ea+7-268)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 18-ea+7-268, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0xd349cc] GenerateOopMap::result_for_basicblock(int)+0x9c
      ..........
      Command Line: -XX:CompileCommand=quiet -XX:CompileCommand=dontinline,Test::* -XX:+VerifyOops -XX:+VerifyStack -XX:+VerifyLastFrame -XX:+VerifyBeforeGC -XX:+VerifyAfterGC -XX:+VerifyDuringGC -XX:+VerifyAdapterSharing Test
      ..........
      Current thread (0x00007f5934029370): JavaThread "main" [_thread_in_Java, id=2766570, stack(0x00007f593d827000,0x00007f593d928000)]

      Stack: [0x00007f593d827000,0x00007f593d928000], sp=0x00007f593d9242c0, free space=1012k
      Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0xd349cc] GenerateOopMap::result_for_basicblock(int)+0x9c
      V [libjvm.so+0x1530e2e] OopMapForCacheEntry::compute_map(Thread*)+0x17e
      V [libjvm.so+0x1532ad1] OopMapCacheEntry::fill(methodHandle const&, int)+0xf1
      V [libjvm.so+0x15333c3] OopMapCache::compute_one_oop_map(methodHandle const&, int, InterpreterOopMap*)+0x63
      V [libjvm.so+0xa9edcc] Deoptimization::unpack_frames(JavaThread*, int)+0xaec
      v ~DeoptimizationBlob
      j Test.iMeth(II)I+346
      j Test.vMeth1(II)V+86
      j Test.vMeth(IJJ)V+119
      j Test.mainTest([Ljava/lang/String;)V+72
      j Test.main([Ljava/lang/String;)V+18
      v ~StubRoutines::call_stub
      V [libjvm.so+0xe5f8f4] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, JavaThread*)+0x504
      V [libjvm.so+0xf91c95] jni_invoke_static(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, JavaThread*) [clone .constprop.1]+0x375
      V [libjvm.so+0xf953a5] jni_CallStaticVoidMethod+0x1c5
      C [libjli.so+0x47e7] JavaMain+0xd37
      C [libjli.so+0x7d19] ThreadJavaMain+0x9

      Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
      v ~DeoptimizationBlob
      j Test.iMeth(II)I+346
      j Test.vMeth1(II)V+86
      j Test.vMeth(IJJ)V+119
      j Test.mainTest([Ljava/lang/String;)V+72
      j Test.main([Ljava/lang/String;)V+18
      v ~StubRoutines::call_stub

        Attachments

        1. FuzzerUtils.java
          13 kB
        2. hs_err_pid2766569.log
          63 kB
        3. Reduced.java
          0.3 kB
        4. Test.java
          14 kB

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              Assignee:
              yyang Yi Yang
              Reporter:
              chagedorn Christian Hagedorn
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                Dates

                Created:
                Updated: