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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-2986) [drlvm][test][reliability] VM hangs on Dekkers algorithm
Date Mon, 18 Jun 2007 12:26:26 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-2986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mikhail Fursov closed HARMONY-2986.
-----------------------------------


> [drlvm][test][reliability] VM hangs on Dekkers algorithm
> --------------------------------------------------------
>
>                 Key: HARMONY-2986
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2986
>             Project: Harmony
>          Issue Type: Test
>          Components: DRLVM
>         Environment: win XP with 2 Xeon CPUs, drlvm (msvc, debug), svn = r495493
>            Reporter: tatyana doubtsova
>            Assignee: weldon washburn
>         Attachments: DekkerTest.java, DekkerTest.java, run.bat
>
>
> Running DekkerTest from reliability test suite (https://issues.apache.org/jira/browse/HARMONY-2918)
> I observed intermittent drlVM hangs (~1 out of 5). Typing <ctrl><break> gives:
> .....
> iteration number is 2
> The stack trace of the 02CE40A8 java thread:
> The stack trace of the 02CE60D8 java thread:
>   [02CE60D8] 03320F02(m): Dekkerthread.regionIn(I)V
>   [02CE60D8] 03320C03(m): Dekkerthread.run()V
>   [02CE60D8] 033106B8(m): java/lang/Thread.runImpl()V
> The stack trace of the 02C24270 java thread:
>   [02C24270] 00000000(n): java/lang/VMThreadManager.wait(Ljava/lang/Object;JI)I
>   [02C24270] 0331042B(m): java/lang/Object.wait()V
>   [02C24270] 034416EC(m): java/lang/FinalizerThread.waitNewTask()V
>   [02C24270] 03440432(m): java/lang/FinalizerThread.run()V
>   [02C24270] 033106B8(m): java/lang/Thread.runImpl()V
> The stack trace of the 012EF160 java thread:
>   [012EF160] 00000000(n): java/lang/VMThreadManager.wait(Ljava/lang/Object;JI)I
>   [012EF160] 0331042B(m): java/lang/Object.wait()V
>   [012EF160] 034612EE(m): java/lang/Thread.join()V
>   [012EF160] 0332053A(m): DekkerTest.test()I
>   [012EF160] 033200FA(m): DekkerTest.main([Ljava/lang/String;)V
> ...........
> Reproducing code and run script attached.
> It should be noticed that test also hang on jdk1.5.0_08 and IBM VME. But it occurs ~50
times rarely.

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