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  1. JDK
  2. JDK-8212766

TestPromotionEventWithG1.java failed due to "RuntimeException: PLAB size is smaller than object size."

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 12
    • Fix Version/s: 12
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b18
    • CPU:
      x86_64
    • OS:
      linux_ubuntu

      Description

      The following test failed due to an exception on Linux-X64
      in a fastdebug and a slowdebug config using jdk-12+16 bits:

      jdk/jfr/event/gc/detailed/TestPromotionEventWithG1.java

      The test only failed in 1 of 3 'fastdebug' bits runs and 1 of 3
      'slowdebug' bits runs so I'm tagging this bug as intermittent.
      It did not fail at all in the 'release' bits runs.

      Here's a snippet from one of the log files:

      ----------System.out:(0/0)----------
      ----------System.err:(65/2436)----------
      java.lang.RuntimeException: PLAB size is smaller than object size. Event: PromoteObjectInNewPLAB {
        startTime = 21955328706
        eventThread = {
          osName = "GC Thread#2"
          osThreadId = 24965
          javaName = null
          javaThreadId = 0
          group = null
        }
        gcId = 36
        objectClass = {
          classLoader = {
            type = null
            name = "bootstrap"
          }
          name = "[B"
          package = null
          modifiers = 0
        }
        objectSize = 144
        tenuringAge = 1
        tenured = true
        plabSize = 24
      }
      : expected true, was false
              at jdk.test.lib.Asserts.fail(Asserts.java:594)
              at jdk.test.lib.Asserts.assertTrue(Asserts.java:486)
              at jdk.jfr.event.gc.detailed.PromotionEvent.verifyPromotionSampleEvents(PromotionEvent.java:173)
              at jdk.jfr.event.gc.detailed.PromotionEvent.test(PromotionEvent.java:140)
              at jdk.jfr.event.gc.detailed.TestPromotionEventWithG1.main(TestPromotionEventWithG1.java:42)
              at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
              at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.base/java.lang.reflect.Method.invoke(Method.java:566)
              at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
              at java.base/java.lang.Thread.run(Thread.java:835)

      JavaTest Message: Test threw exception: java.lang.RuntimeException: PLAB size is smaller than object size. Event: PromoteObjectInNewPLAB {
        startTime = 21955328706
        eventThread = {
          osName = "GC Thread#2"
          osThreadId = 24965
          javaName = null
          javaThreadId = 0
          group = null
        }
        gcId = 36
        objectClass = {
          classLoader = {
            type = null
            name = "bootstrap"
          }
          name = "[B"
          package = null
          modifiers = 0
        }
        objectSize = 144
        tenuringAge = 1
        tenured = true
        plabSize = 24
      }
      : expected true, was false
      JavaTest Message: shutting down test

      STATUS:Failed.`main' threw exception: java.lang.RuntimeException: PLAB size is smaller than object size. Event: PromoteObjectInNewPLAB { startTime = 21955328706 eventThread = { osName = "GC Thread#2" osThreadId = 24965 javaName = null javaThreadId = 0 group = null } gcId = 36 objectClass = { classLoader = { type = null name = "bootstrap" } name = "[B" package = null modifiers = 0 } objectSize = 144 tenuringAge = 1 tenured = true plabSize = 24 } : expected true, was false
      ----------rerun:(40/4410)*----------

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              • Assignee:
                tschatzl Thomas Schatzl
                Reporter:
                dcubed Daniel Daugherty
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                • Created:
                  Updated:
                  Resolved: