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From "Ilya Berezhniuk (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-2772) [drlvm][gc] test stress.Mix intermittently failed on the em64t platform
Date Thu, 06 Dec 2007 02:42:43 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-2772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548905
] 

Ilya Berezhniuk commented on HARMONY-2772:
------------------------------------------

I've performed 1000 runs of stress.Mix in cycle, all 1000 runs are successful (PASSED).

The only problem I saw is exception message:
--------------------------------
Co............................................................uc+cdsuacecd+salleuccds+alecud+saleuccc+sdaleuccd+saleu
allocate6 terminated by java.lang.NullPointerException
cjava.lang.NullPointerException
        at stress.Mix.allocate(Mix.java:281)
        at stress.Mix.run(Mix.java:74)
cd+sd+ad+aleuccd+saleuccd+saleuccd+saleuccd+saleuccd+s
PASSED
--------------------------------
But the test is passed anyway.


I've also added assertions to GC_GEN to check if GC is called in disabled mode (with filtering
GC threads, of course).
These assertions did not occur for me on 1000 runs. 

> [drlvm][gc] test stress.Mix intermittently failed on the em64t platform
> -----------------------------------------------------------------------
>
>                 Key: HARMONY-2772
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2772
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Linux / x86_64
>            Reporter: Vladimir Ivanov
>            Assignee: Xiao-Feng Li
>         Attachments: HARMONY-2772_GC_assert.patch, HARMONY-2772_GC_assert.patch
>
>
> Test stress.Mix intermittently failed on the em64t platform with "Segmentation fault".
> Execution log:
> vivanov1@nstdrlel18:/export/users/viv/trunk/cc/projects/drlvm/trunk/build/lnx_em64t_gcc_debug/semis/vm/_smoke.tests/classes>
../../../../deploy/jdk/jre/bin/java -cp . stress.Mix
> oC............................................................ccd+saeuluccd+saleuccd+saleuccd+saleucd+sacleuccd+saleucd+sc
> PASSED
> vivanov1@nstdrlel18:/export/users/viv/trunk/cc/projects/drlvm/trunk/build/lnx_em64t_gcc_debug/semis/vm/_smoke.tests/classes>
../../../../deploy/jdk/jre/bin/java -cp . stress.Mix
> Co............................................................uccd+saleuccd+saleuccd+saleuccd+saleuccd+saleuccd+salSegmentation
fault
> vivanov1@nstdrlel18:/export/users/viv/trunk/cc/projects/drlvm/trunk/build/lnx_em64t_gcc_debug/semis/vm/_smoke.tests/classes>

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