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  1. JDK
  2. JDK-8229499

Node budget assert in fuzzed test

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    • Resolved In Build:
      b17

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        Description

        (synopsis is provisional, please change as you see fit).

        Found by fuzzing. Test bundle is attached. Crashes every time for me:

        $ ~/trunks/jdk-jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java Test

        #
        # A fatal error has been detected by the Java Runtime Environment:
        #
        # Internal Error (/home/shade/trunks/jdk-jdk/src/hotspot/share/opto/loopnode.hpp:1410), pid=22965, tid=22976
        # assert(C->live_nodes() - live_at_begin <= 2 * _nodes_required) failed: Bad node estimate: actual = 768 >> request = 166
        #
        # JRE version: OpenJDK Runtime Environment (14.0) (fastdebug build 14-internal+0-adhoc.shade.jdk-jdk)
        # Java VM: OpenJDK 64-Bit Server VM (fastdebug 14-internal+0-adhoc.shade.jdk-jdk, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
        # Problematic frame:
        # V [libjvm.so+0x11e762a] AutoNodeBudget::~AutoNodeBudget()+0x1ba
        #
        # Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P" (or dumping to /home/shade/trunks/JavaFuzzer/tests/08508/core.22965)
        #
        # If you would like to submit a bug report, please visit:
        # http://bugreport.java.com/bugreport/crash.jsp
        #

        --------------- S U M M A R Y ------------

        Command Line: Test

        Host: shade-desktop, Intel(R) Core(TM) i7-7820X CPU @ 3.60GHz, 16 cores, 125G, Ubuntu 18.04.3 LTS
        Time: Tue Aug 13 21:39:29 2019 CEST elapsed time: 0 seconds (0d 0h 0m 0s)

        --------------- T H R E A D ---------------

        Current thread (0x00007f2708596000): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=22976, stack(0x00007f26a815e000,0x00007f26a825f000)]


        Current CompileTask:
        C2: 245 65 ! 4 Test::iMeth (538 bytes)

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                Assignee:
                phedlin Patric Hedlin (Inactive)
                Reporter:
                shade Aleksey Shipilev
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                  Updated:
                  Resolved: