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From "Elena Semukhina (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-2343) [drlvm][kernel test] ThreadTest.testYield() fails intermittently on linux.
Date Tue, 28 Nov 2006 12:07:22 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2343?page=all ]

Elena Semukhina updated HARMONY-2343:

    Attachment: H-2343_ThreadTest.patch

I attached the patch which fixes the test. We should just make sure that yield() does not
prevent threads from successful run.

> [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
>         Attachments: H-2343_ThreadTest.patch, ThreadYield.java
> The test 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
> 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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