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  1. JDK
  2. JDK-6475811

iCMS: assert(top < _icms_stop_limit,"Tautology")

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 6
    • Fix Version/s: hs10
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Introduced In Build:
      1.4.2
    • Introduced In Version:
    • Resolved In Build:
      b03
    • CPU:
      generic
    • OS:
      generic

      Backports

        Description

        The following tests failed:
        gc/gctests/Compact/compact017 (gc.gctests.Compact.compact017)
        gc/gctests/Compact/compact018 (gc.gctests.Compact.compact018)

        The assert triggered below was introduced in the recent fix for 6472335.
        It does not indicate a correctness issue (see comments), just a very minor
        performance issue.

        For example:

        #
        # An unexpected error has been detected by Java Runtime Environment:
        #
        # Internal Error (/net/prt-solx86-q1-3/PrtBuildDir/workspace/src/share/vm/memory/concurrentMarkSweepGeneration.cpp, 1169), pid=1196, tid=14
        #
        # Java VM: Java HotSpot(TM) Client VM (20060922160805.ysr.bot-debug mixed mode)
        #
        # Error: assert(top < _icms_stop_limit,"Tautology")
        # If you would like to submit a bug report, please visit:
        # http://java.sun.com/webapps/bugreport/crash.jsp
        #

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

        Current thread (0x08219000): JavaThread "Thread-1" [_thread_in_vm, id=14]

        Stack: [0xf2a34000,0xf2a84000), sp=0xf2a83138, free space=316k
        Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
        V [libjvm.so+0x928a6f]
        V [libjvm.so+0x29d61f]
        V [libjvm.so+0x25d4f2]
        V [libjvm.so+0x25d8d0]
        V [libjvm.so+0x6551d]
        V [libjvm.so+0x2ea7b8]
        V [libjvm.so+0x22ebf1]
        V [libjvm.so+0x2ea851]
        V [libjvm.so+0x5de6e]
        V [libjvm.so+0x32d9a5]
        V [libjvm.so+0x316e62]
        V [libjvm.so+0x15b8db]
        v ~RuntimeStub::fast_new_instance Runtime1 stub
        J gc.gctests.Compact.compact017$AuxiliaryThread.run()V
        v ~StubRoutines::call_stub
        V [libjvm.so+0x38138c]
        V [libjvm.so+0x740c6f]
        V [libjvm.so+0x380cc0]
        V [libjvm.so+0x37ffe2]
        V [libjvm.so+0x3801f4]
        V [libjvm.so+0x492a99]
        V [libjvm.so+0x85daaa]
        V [libjvm.so+0x85d854]
        V [libjvm.so+0x73b81f]
        C [libc.so.1+0x9f6f8]
        C [libc.so.1+0x9f9e0]

        Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
        v ~RuntimeStub::fast_new_instance Runtime1 stub
        J gc.gctests.Compact.compact017$AuxiliaryThread.run()V
        v ~StubRoutines::call_stub

        --------------- P R O C E S S ---------------

        Java Threads: ( => current thread )
        =>0x08219000 JavaThread "Thread-1" [_thread_in_vm, id=14]
          0x081d8000 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=12]
          0x081d6000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=11]
          0x081d4400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=10]
          0x081d3000 JavaThread "Surrogate Locker Thread (CMS)" daemon [_thread_blocked, id=9]
          0x081ba400 JavaThread "Finalizer" daemon [_thread_blocked, id=8]
          0x081b5800 JavaThread "Reference Handler" daemon [_thread_blocked, id=7]
          0x08088400 JavaThread "main" [_thread_blocked, id=2]

        Other Threads:
          0x081a9000 VMThread [id=6]
          0x081da400 WatcherThread [id=13]

        VM state:not at safepoint (normal execution)

        VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
        [0x08087338/0x08087398] Heap_lock - owner thread: 0x08219000

        Heap
         par new generation total 14784K, used 14783K [0xf3600000, 0xf4600000, 0xf4600000)
          eden space 13184K, 99% used [0xf3600000, 0xf42dfff8, 0xf42e0000)
          from space 1600K, 100% used [0xf42e0000, 0xf4470000, 0xf4470000)
          to space 1600K, 0% used [0xf4470000, 0xf4470000, 0xf4600000)
         concurrent mark-sweep generation total 49152K, used 49152K [0xf4600000, 0xf7600000, 0xf7600000)
         concurrent-mark-sweep perm gen total 12288K, used 1682K [0xf7600000, 0xf8200000, 0xfb600000)

        Dynamic libraries:
        0x08050000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/bin/java
        0xfefa0000 /lib/libthread.so.1
        0xfef80000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/bin/../jre/lib/i386/jli/libjli.so
        0xfefb0000 /lib/libdl.so.1
        0xfee90000 /lib/libc.so.1
        0xfdc00000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/client/libjvm.so
        0xfee50000 /lib/libsocket.so.1
        0xfee70000 /usr/lib/libsched.so.1
        0xfee10000 /lib/libm.so.1
        0xfdbd0000 /usr/lib/libCrun.so.1
        0xfdbb0000 /lib/libdoor.so.1
        0xfdb10000 /lib/libnsl.so.1
        0xfdab0000 /lib/libm.so.2
        0xfda80000 /lib/libscf.so.1
        0xfda60000 /lib/libuutil.so.1
        0xfda40000 /lib/libmd5.so.1
        0xfda20000 /lib/libmp.so.2
        0xfd940000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/native_threads/libhpi.so
        0xfd900000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/libverify.so
        0xfd8b0000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/libjava.so
        0xfd880000 /export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/libzip.so

        VM Arguments:
        jvm_args: -Xmixed -DHANGINGJAVA22160 -XX:-PrintVMOptions -Xincgc -XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled
        java_command: gc.gctests.Compact.compact017 -iterations=1 -gcTimeout=5
        Launcher Type: SUN_STANDARD

        Environment Variables:
        CLASSPATH=/export/gtee/Work/exec/vm.gc-27-NIGHTLY-Gc_Baseline-Xinc-ClientVM-mixed-solx86-2006-09-27-04-54-18/run2/gridadm.Solaris.x86/compact017:/net/gtee.sfbay/export/gtee/suites/testbase_vm.1.6/vm/bin/classes:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/lib/tools.jar
        PATH=/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/bin:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/bin:/bin:/usr/bin:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/bin:/mksnt
        LD_LIBRARY_PATH=/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/client:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/../lib/i386:/export/gtee/Work/JDK/NIGHTLY/Gc_Baseline-Xinc/solaris-i586/jre/lib/i386/client:/net/gtee.sfbay/export/gtee/suites/testbase_vm.1.6/vm/bin/lib/solaris-i586/nsk/share/gc/lock/jni:/net/gtee.sfbay/export/gtee/suites/testbase_vm.1.6/vm/bin/lib/solaris-i586/nsk/share/gc/lock/malloc:/net/gtee.sfbay/export/gtee/suites/testbase_vm.1.6/vm/bin/lib/solaris-i586/nsk/share/gc/lock/jvmti:/net/gtee.sfbay/export/gtee/suites/testbase_vm.1.6/vm/bin/lib/solaris-i586/nsk/share/gc/lock/jniref
        SHELL=/usr/bin/sh
        DISPLAY=vmsqe.sfbay:0.0

        Signal Handlers:
        SIGSEGV: [libjvm.so+0x929660], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
        SIGBUS: [libjvm.so+0x929660], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
        SIGFPE: [libjvm.so+0x740c78], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
        SIGPIPE: [libjvm.so+0x740c78], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
        SIGILL: [libjvm.so+0x740c78], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
        SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
        SIGUSR2: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
        SIGHUP: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIGINT: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIGQUIT: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIGTERM: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIGQUIT: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIGTERM: [libjvm.so+0x73dc80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
        SIG39: [libjvm.so+0x740ca4], sa_mask[0]=0x00000000, sa_flags=0x00000008
        SIG40: [libjvm.so+0x740c78], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c


        --------------- S Y S T E M ---------------

        OS: Solaris 10 10/05 s10x_u1wos_07 X86
                   Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
                                Use is subject to license terms.
                                      Assembled 17 May 2005

        uname:SunOS 5.10 Generic_Patch_118844-30 i86pc (T2 libthread)
        rlimit: STACK 8192k, CORE 50k, NOFILE 65536, AS infinity
        load average:1.10 1.51 1.78

        CPU:total 2 family 15, cmov, cx8, fxsr, mmx, sse, sse2, mmxext, 3dnowext, 3dnow

        Memory: 4k page, physical 4127784k(3278012k free)

        vm_info: Java HotSpot(TM) Client VM (20060922160805.ysr.bot) for solaris-x86, built on Sep 22 2006 21:04:19 by "PRT" with unknown Workshop:0x580

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                • Assignee:
                  ysr Y. Ramakrishna
                  Reporter:
                  ysr Y. Ramakrishna
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                  • Created:
                    Updated:
                    Resolved:
                    Imported:
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