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From "weldon washburn (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-2343) [drlvm][kernel test] ThreadTest.testYield() fails intermittently on linux.
Date Fri, 08 Dec 2006 16:50:26 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2343?page=all ]

weldon washburn reassigned HARMONY-2343:
----------------------------------------

    Assignee: weldon washburn

> [drlvm][kernel test] ThreadTest.testYield() fails intermittently on linux.
> --------------------------------------------------------------------------
>
>                 Key: HARMONY-2343
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2343
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Elena Semukhina
>         Assigned To: weldon washburn
>         Attachments: H-2343_ThreadTest.patch, ThreadYield.java
>
>
> The ThreadTest.testYield() fails approximately once per 10 runs. It fails mainly in the
batch mode and usually passes when running separately.
> The attached test is an excerpt from ThreadTest but it is not an issue reproducer. On
the contrary, it demonstrates fine threads alternating on DRLVM while it always fails on RI
1.5.0_08. 
> Nevertheless, I think ThreadTest is not quite correct. The spec says:
> (yield) Causes the currently executing thread object to temporarily pause and allow other
threads to execute.
> The test should not expect that the two threads alternate. Any other thread can execute
while some thread yields. And this happens most likely when a lot of threads are alive during
the test run.

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