如何解决/调试 JVM 崩溃的最佳方法 (SIGSEGV)

Question

我真的很迷茫，我不知道如何面对和解决我的问题。我有一段简单的 Java 代码，导致 JVM 崩溃：

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00000001057ce9d4, pid=10727, tid=18947
#
# JRE version: Java(TM) SE Runtime Environment (8.0_73-b02) (build 1.8.0_73-b02)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.73-b02 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.dylib+0x3ce9d4]  PhaseIdealLoop::idom_no_update(Node*) const+0x12
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

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

Current thread (0x00007feeef003800):  JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=18947, stack(0x0000700000ec4000,0x0000700000fc4000)]

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000008

我不知道如何解决这个问题。该程序非常简单，它通过 Kafka 接收消息并根据收到的消息触发任务。如果我添加两个不同的任务，程序会在 900 - 1,500 条消息后崩溃。所有消息都是相同的，并且程序不使用任何 JNI 东西（据我所知，使用过的第 3 方库也不使用任何 JNI）。

我从未遇到过这个问题，但我希望/需要找到一种方法来找出问题所在。我已经使用过其他版本的 JVM（Java 8.0_66、8.0_73-b02 和 8.0_74-b02）。那么我能做什么呢？非常感谢！

编辑（1）：有时我也会收到以下错误/信息：

...
# JRE version: Java(TM) SE Runtime Environment (8.0_73-b02) (build 1.8.0_73-b02)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.73-b02 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.dylib+0x3ce9d4]
...

编辑 (2)：我将 Java 版本更新为 8.0_74。错误仍然存​​在:(。

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00000001073cdef8, pid=11227, tid=19715
#
# JRE version: Java(TM) SE Runtime Environment (8.0_74-b02) (build 1.8.0_74-b02)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.74-b02 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.dylib+0x3cdef8]  PhaseIdealLoop::idom_no_update(Node*) const+0x12
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

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

Current thread (0x00007f89e481c800):  JavaThread "C2 CompilerThread1" daemon [_thread_in_native, id=19715, stack(0x000070000104a000,0x000070000114a000)]

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000008

编辑（3）：核心转储

所以最后我创建了一个核心转储并将其加载到 Java VisualVM 中（我无法使用 DROY 提供的解决方案，因为调用 jmap 会导致另一个错误：“附加到核心文件时出错：无法附加到核心文件” ）。使用 VisualVM 创建的线程转储结果：

Thread 30239 "Keep-Alive-Timer": (state = BLOCKED)
    at java.lang.Thread.sleep(Native Method)
    at sun.net.www.http.KeepAliveCache.run(KeepAliveCache.java:172)
    at java.lang.Thread.run(Thread.java:745)

Thread 29699 "threadDeathWatcher-4-1": (state = BLOCKED)
    at java.lang.Thread.sleep(Native Method)
    at io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:137)
    at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
    at java.lang.Thread.run(Thread.java:745)

Thread 26635 "nioEventLoopGroup-3-1": (state = IN_NATIVE)
    at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
    at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198)
    at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    - locked <0x00000006c049ec98> (a io.netty.channel.nio.SelectedSelectionKeySet)
    - locked <0x00000006c049ec88> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000006c049ecb8> (a sun.nio.ch.KQueueSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:622)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:310)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
    at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
    at java.lang.Thread.run(Thread.java:745)

Thread 29187 "pool-3-thread-1": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
    at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:63)
    at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:33)
    at kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:66)
    at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:58)
    at com.sosse.common.messaging.DefaultHandler.doRun(DefaultHandler.java:22)
    at com.sosse.common.concurrency.DefaultRunnable.run(DefaultRunnable.java:11)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Thread 28675 "pool-4-thread-1": (state = BLOCKED)
    at java.lang.Thread.sleep(Native Method)
    at io.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:461)
    at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:360)
    at java.lang.Thread.run(Thread.java:745)

Thread 28163 "ConsumerFetcherThread-analytics-group_Philipp.local-1458441725398-581eabc3-0-0": (state = IN_NATIVE)
    at sun.nio.ch.Net.poll(Native Method)
    at sun.nio.ch.SocketChannelImpl.poll(SocketChannelImpl.java:954)
    - locked <0x00000006c056d538> (a java.lang.Object)
    at sun.nio.ch.SocketAdaptor$SocketInputStream.read(SocketAdaptor.java:204)
    - locked <0x00000006c056d5b8> (a java.lang.Object)
    at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:103)
    - locked <0x00000006c056d5f8> (a sun.nio.ch.SocketAdaptor$SocketInputStream)
    at java.nio.channels.Channels$ReadableByteChannelImpl.read(Channels.java:385)
    - locked <0x00000006c056d618> (a java.lang.Object)
    at kafka.utils.Utils$.read(Utils.scala:380)
    at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54)
    at kafka.network.Receive$class.readCompletely(Transmission.scala:56)
    at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29)
    at kafka.network.BlockingChannel.receive(BlockingChannel.scala:111)
    at kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:71)
    at kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:68)
    - locked <0x00000006c056d6e0> (a java.lang.Object)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SimpleConsumer.scala:112)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:112)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:112)
    at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply$mcV$sp(SimpleConsumer.scala:111)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:111)
    at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:111)
    at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
    at kafka.consumer.SimpleConsumer.fetch(SimpleConsumer.scala:110)
    at kafka.server.AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:94)
    at kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:86)
    at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:60)

Thread 27651 "analytics-group_Philipp.local-1458441725398-581eabc3-leader-finder-thread": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at kafka.consumer.ConsumerFetcherManager$LeaderFinderThread.doWork(ConsumerFetcherManager.scala:61)
    at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:60)

Thread 27139 "analytics-group_Philipp.local-1458441725398-581eabc3_watcher_executor": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
    at kafka.consumer.ZookeeperConsumerConnector$ZKRebalancerListener$$anon$1.run(ZookeeperConsumerConnector.scala:544)

Thread 26115 "kafka-consumer-scheduler-0": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Thread 25603 "main-EventThread": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
    at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:494)

Thread 25091 "main-SendThread(localhost:2181)": (state = IN_NATIVE)
    at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
    at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198)
    at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    - locked <0x00000006c0022c50> (a sun.nio.ch.Util$2)
    - locked <0x00000006c0022c60> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00000006c0022c00> (a sun.nio.ch.KQueueSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)

Thread 24579 "ZkClient-EventThread-16-localhost:2181": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
    at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:67)

Thread 24067 "metrics-meter-tick-thread-2": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Thread 23555 "metrics-meter-tick-thread-1": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Thread 23303 "pool-1-thread-1": (state = BLOCKED)
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

VM Thread 20995 "Service Thread": (state = BLOCKED)

VM Thread 20483 "C1 CompilerThread3": (state = BLOCKED)

VM Thread 19971 "C2 CompilerThread2": (state = IN_NATIVE)

VM Thread 19459 "C2 CompilerThread1": (state = IN_NATIVE)

VM Thread 18947 "C2 CompilerThread0": (state = IN_NATIVE)

Thread 15887 "Signal Dispatcher": (state = BLOCKED)

Thread 14339 "Finalizer": (state = BLOCKED)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000006c005fa88> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
    - locked <0x00000006c005fa88> (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

Thread 13827 "Reference Handler": (state = BLOCKED)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000006c0029358> (a java.lang.ref.Reference$Lock)
    at java.lang.Object.wait(Object.java:502)
    at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
    - locked <0x00000006c0029358> (a java.lang.ref.Reference$Lock)
    at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)

Thread 2823 "main": (state = BLOCKED)
    at java.lang.Thread.sleep(Native Method)
    at com.sosse.analytics.ActivityProducer.sleep(ActivityProducer.java:110)
    at com.sosse.analytics.DemoMain$1.startApplication(DemoMain.java:37)
    at com.sosse.common.application.DefaultApplication.start(DefaultApplication.java:166)
    - locked <0x00000006c00e6080> (a java.lang.Thread)
    at com.sosse.common.application.DefaultApplication.start(DefaultApplication.java:118)
    at com.sosse.analytics.DemoMain.main(DemoMain.java:48)

编辑（4）：源代码反序列化器

public static Object[] deserialize(final JsonElement jsonElement, final JsonDeserializationContext context, final BiFunction<Class<?>, JsonElement, Serializable[]> timeSeriesDeserializer) {
    final JsonObject jsonObject = jsonElement.getAsJsonObject();

    // get the important classes
    final Class<?> bucketContent = resolveClass("bucketContent", jsonObject, context);

    // configuration
    final TimeUnit timeUnit = context.deserialize(jsonObject.get("timeUnit"), TimeUnit.class);
    final int bucketSize = context.deserialize(jsonObject.get("bucketSize"), int.class);
    final boolean fillNumberWithZero = context.deserialize(jsonObject.get("fillNumberWithZero"), boolean.class);

    // the values
    final Long now = context.deserialize(jsonObject.get("now"), Long.class);
    final Serializable[] timeSeries = timeSeriesDeserializer.apply(bucketContent, jsonObject.get("timeSeries"));

    @SuppressWarnings("unchecked")
    final BucketTimeSeriesConfig config = new BucketTimeSeriesConfig(bucketContent, timeUnit, timeSeries.length, bucketSize, fillNumberWithZero);
    return new Object[]{config, timeSeries, now};
}

Answer 1

崩溃报告告诉 JIT 编译器线程中发生了错误：

Current thread (0x00007f89e481c800):  JavaThread "C2 CompilerThread1"

采取以下步骤诊断编译器问题：

1. 试用 JDK 9 EA 中可用的最新 JVM 构建：https://jdk9.java.net/download/

   如果问题消失，您可以继续使用此版本，或者尝试找到解决问题的确切提交，然后将其反向移植到 JDK 8。如何反向移植修复以及如何自己构建 HotSpot - 这是一个单独的主题，但我可以告诉你是否有兴趣。

2. 如果问题仍然存在，请尝试找到有问题的方法并将其从编译中排除。

   Current CompileTask: C2: 114667 5303 4 com.sosse.time.timeseries.gson.TypeConverterHelper::deserialize (157 bytes)
   

   在您的情况下，它似乎无法编译 TypeConverterHelper.deserialize()。添加以下 JVM 选项以排除此特定方法：

   -XX:CompileCommand=exclude,com.sosse.time.timeseries.gson.TypeConverterHelper::deserialize
   

3. 如果没有帮助，请尝试通过提供多个-XX:CompileCommand 来排除更多方法。要查找要排除的候选人，请使用-XX:+PrintCompilation 并查看打印列表的底部。您还可以从编译中排除整个类和包，例如

   -XX:CompileCommand=exclude,com.sosse.time.timeseries.gson.*::*
   

4. 尝试一一禁用某些编译器优化。可以尝试的一些选项是：

   -XX:-DoEscapeAnalysis
   -XX:LoopUnrollLimit=0
   -XX:-PartialPeelLoop
   -XX:-UseLoopPredicate
   -XX:-LoopUnswitching
   -XX:-ReassociateInvariants
   -XX:MaxInlineLevel=1
   -XX:-IncrementalInline
   -XX:-RangeCheckElimination
   -XX:-EliminateAllocations
   -XX:-UseTypeProfile
   -XX:AliasLevel=0
   

5. 无论是否找到有问题的方法/优化，再次运行 JVM

   -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation
   

   这将在当前目录中创建hotspot_pid1234.log 文件，其中包含详细的编译日志。

6. 在bugreport.java.com 提交错误报告。选择

   Product/Category: HotSpot Virtual Machine (errors)
   Subcategory:      J2SE Server Compiler
   

   确保包含第 5 步中的完整 hs_err_pid.log 和 hotspot_pid.log。如果您可以提供一个简化的独立示例来演示该问题，这将非常有帮助。

   为了更快的反应，您也可以向hotspot-compiler-dev 邮件列表发消息。

Answer 2

看起来像 JDK 错误JDK-6675699。根据错误报告，该错误的修复已被向后移植到 8u74、8u81 和 8u82。

请注意，（截至目前）以最终用户为中心的 Java Download Site 提供 8u73 作为最新版本。你可以从Java Developer Download Site获取8u74。

---

如果更新到 8u74 不能解决问题，那么您应该将此作为错误报告提交给 Oracle。可能的诊断是您正在运行的代码导致 JIT 代码编译器在尝试编译/优化它时崩溃。这就是PhaseIdealLoop::idom_no_update 所表明的。

JDK-6675699 是针对特定 JIT 编译器错误的。很可能还有其他未诊断的 JIT 编译器错误。如果您提交新的错误报告，它可以帮助维护人员追踪这些错误。但是，只有在您能够提供足够的信息让他们重现您的错误时，错误报告才会对他们有用。

（当然，根本原因也可能是完全不同的；例如，您的代码中的某些第 3 方代码破坏了导致编译器崩溃的 JVM 数据结构。但对于损坏以重复破坏编译器......并且只有编译器。）

---

更新 - 根据这些Release Notes，您实际需要的版本是Java SE 8u74-b32。

Answer 3

我认为你应该花一些时间来分析核心。

分段错误

这有几个可能的原因。 JVM 本身或包中可能存在错误（其中一些是用 C 或 C++ 编写的）。这也可能是由于不兼容的组件一起使用的错误配置造成的。

根据经验，JVM 错误是其中最不可能的。尽管@Stephen 认为这很可能是这种情况。

如果您在崩溃点捕获堆栈跟踪，这可能会为您提供一些关于崩溃发生的确切位置的线索。

首先，我看到您需要配置 ulimit -c unlimited 以便您可以将核心文件存储到磁盘。

分析核心文件
完成后，您应该使用以下方法分析核心。

要转换文件，请使用命令行工具 jmap。

jmap -dump:format=b,file=dump.hprof /usr/bin/java core_file

地点：

dump.hprof 是您要创建的 hprof 文件的名称

/usr/bin/java 是生成核心转储的 java 二进制文件版本的路径