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  1. JDK
  2. JDK-8249603

C1: assert(has_error == false) failed: register allocation invalid

    Details

    • Subcomponent:
    • Resolved In Build:
      b11

      Backports

        Description

        The attached fuzzer test fails with the following assertion.

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

        #
        # A fatal error has been detected by the Java Runtime Environment:
        #
        # Internal Error (/home/christian/jdk/open/src/hotspot/share/c1/c1_LinearScan.cpp:3295), pid=22028, tid=22044
        # assert(has_error == false) failed: register allocation invalid
        #
        # JRE version: Java(TM) SE Runtime Environment (16.0) (slowdebug build 16-internal+0-2020-07-13-1111353.christian...)
        # Java VM: Java HotSpot(TM) 64-Bit Server VM (slowdebug 16-internal+0-2020-07-13-1111353.christian..., compiled mode, tiered, compressed oops, g1 gc, linux-amd64)
        # Problematic frame:
        # V [libjvm.so+0x582a7b] LinearScan::verify_intervals()+0x5d9
        ..........
        Command Line: -Xmx1G -Xcomp -Xbatch -XX:CompileOnly=Test --add-modules=ALL-DEFAULT jdk.compiler/com.sun.tools.javac.launcher.Main Test.java
        ..........
        Current thread (0x00007f71d0346750): JavaThread "C1 CompilerThread0" daemon [_thread_in_native, id=22044, stack(0x00007f71c0012000,0x00007f71c0113000)]


        Current CompileTask:
        C1: 16017 128 % !b 2 Test::mainTest @ 317 (736 bytes)

        Stack: [0x00007f71c0012000,0x00007f71c0113000], sp=0x00007f71c0110bd0, free space=1018k
        Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
        V [libjvm.so+0x582a7b] LinearScan::verify_intervals()+0x5d9
        V [libjvm.so+0x5823c2] LinearScan::verify()+0x46
        V [libjvm.so+0x581d9e] LinearScan::do_linear_scan()+0x17a
        V [libjvm.so+0x4f511a] Compilation::emit_lir()+0x152
        V [libjvm.so+0x4f588c] Compilation::compile_java_method()+0x21e
        V [libjvm.so+0x4f5bee] Compilation::compile_method()+0x106
        V [libjvm.so+0x4f63ea] Compilation::Compilation(AbstractCompiler*, ciEnv*, ciMethod*, int, BufferBlob*, bool, DirectiveSet*)+0x362
        V [libjvm.so+0x4fa13d] Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0xd9
        V [libjvm.so+0x6ea926] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x88e
        V [libjvm.so+0x6e95b3] CompileBroker::compiler_thread_loop()+0x3df
        V [libjvm.so+0x10a0bdf] compiler_thread_entry(JavaThread*, Thread*)+0x69
        V [libjvm.so+0x109bd90] JavaThread::thread_main_inner()+0x146
        V [libjvm.so+0x109bc41] JavaThread::run()+0x11f
        V [libjvm.so+0x1097eca] Thread::call_run()+0x180
        V [libjvm.so+0xea6716] thread_native_entry(Thread*)+0x1e4

          Attachments

          1. FuzzerUtils.java
            13 kB
          2. hs_err_pid22028.log
            85 kB
          3. Test.java
            10 kB

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                • Assignee:
                  chagedorn Christian Hagedorn
                  Reporter:
                  chagedorn Christian Hagedorn
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                  Dates

                  • Created:
                    Updated:
                    Resolved: