Harmony
  1. Harmony
  2. HARMONY-1194

[classlib][nio] unexpected "Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[xxx]" messages

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Classlib
    • Labels:
      None

      Description

      The test below report on the 2CPU computers messages like this
      "Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[159703592]"

      Note, on 1 CPU it works fine. I did not detect problem yet so continue to investigate.

      ============================= test.java ===========================
      import java.io.File;
      import java.io.FileOutputStream;
      import java.io.IOException;
      import java.nio.ByteBuffer;
      import java.nio.channels.FileChannel;

      public class test {

      public int NUMBER_OF_ITERATIONS = 10000;
      public int NUMBER_OF_BYTE_BUFFERS = 3;
      public int bufferSize = 1024;
      public int numThreads = 15;

      // Each thread sets PASS/FAIL flag into its corresponding array element
      public int[] statuses;

      public static void main(String[] args)

      { System.exit(new test().test(args)); }

      public int test(String[] params) {
      // Start 'numThreads' threads each reading from file, inflating/deflating
      Thread[] t = new Thread[numThreads];
      statuses = new int[t.length];

      for (int i = 0; i < t.length; i++)

      { t[i] = new Thread(new ChannelWriteThread(i, this)); t[i].start(); System.out.println("Thread " + i + " started"); }

      // wait for all threads to finish
      for (int i = 0; i < t.length; ++i){
      try

      { t[i].join(); System.out.println("Thread " + i + ": joined() "); }

      catch (InterruptedException ie)

      { System.out.println("interruptedException while join() of thread #" + i); return -1; }

      }

      // check status
      for (int i = 0; i < statuses.length; ++i){
      if (statuses[i] != 10)

      { System.out.println("thread #" + i + " returned not PASS status"); return -1; }

      }
      System.out.println("OK");
      return 0;
      }
      }

      class ChannelWriteThread implements Runnable {

      public int id;
      public test base;

      public ChannelWriteThread(int id, test base)

      { this.id = id; this.base = base; }

      public void run() {
      FileOutputStream fos = null;
      FileChannel channel = null;

      try

      { File file = File.createTempFile("test", null); file.deleteOnExit(); fos = new FileOutputStream(file); channel = fos.getChannel(); }

      catch (IOException e)

      { e.printStackTrace(); }


      base.statuses[id] = 10;
      ByteBuffer[] buffer = new ByteBuffer[base.NUMBER_OF_BYTE_BUFFERS];

      for (int i = 0; i < base.NUMBER_OF_ITERATIONS; ++i) {
      for(int j = 0; j < base.NUMBER_OF_BYTE_BUFFERS; j++)

      { buffer[j] = ByteBuffer.allocate(2 * base.bufferSize); }

      buffer[0].flip();
      try

      { channel.write(buffer); }

      catch (IOException e)

      { base.statuses[id] = -1; System.out.println("Thread " + id + " : IOException while buffer writing"); }

      buffer[0].clear();
      }
      try

      { channel.close(); fos.close(); }

      catch (IOException e)

      { base.statuses[id] = -1; System.out.println("Thread " + id + " : IOException while closing"); }

      }
      }
      ===============================================================

      Output (for 4 CPU comp):
      Y:\site\proj\drl\qe\my>inaries\builds\combined\20060815\Harmony-drlvm_20060815_win_ia32_0000_msvc\bin\java.exe -Dvm.assert_dialog=false -cp . -showversion test
      java version "1.5.0"
      pre-alpha : not complete or compatible
      svn = rsvn: '.' is not a working copy, (Aug 15 2006), Windows/ia32/msvc 1310, debug build
      http://incubator.apache.org/harmony
      Thread 0 started
      Thread 1 started
      Thread 2 started
      Thread 3 started
      Thread 4 started
      Thread 5 started
      Thread 6 started
      Thread 7 started
      Thread 8 started
      Thread 9 started
      Thread 10 started
      Thread 11 started
      Thread 12 started
      Thread 13 started
      Thread 14 started
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[187955296]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[161934880]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[175398240]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[168220896]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[161925840]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[172589448]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[190659456]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[200620192]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[171946168]
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[192747808]
      Thread 0: joined()
      Memory Spy! Fixed attempt to free memory that was not allocated PlatformAddress[172558608]
      Thread 1: joined()
      Thread 2: joined()
      Thread 3: joined()
      Thread 4: joined()
      Thread 5: joined()
      Thread 6: joined()
      Thread 7: joined()
      Thread 8: joined()
      Thread 9: joined()
      Thread 10: joined()
      Thread 11: joined()
      Thread 12: joined()
      Thread 13: joined()
      Thread 14: joined()
      OK

      1. Harmony-1194.diff
        0.8 kB
        Ruth Cao
      2. Harmony-1194-2.diff
        0.8 kB
        Ruth Cao
      3. Harmony-1194-3.diff
        1 kB
        Paulex Yang

        Activity

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          People

          • Assignee:
            Tim Ellison
            Reporter:
            Vladimir Ivanov
          • Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development