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From "Shay Banon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3335) jrebug causes porter stemmer to sigsegv
Date Tue, 02 Aug 2011 05:56:29 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13076053#comment-13076053
] 

Shay Banon commented on LUCENE-3335:
------------------------------------

@Uwe I actually forgot about this, and did not think it was because of the porter stemmer
at the time, especially since I did try and reproduce it and never managed to (I thought it
was coincidence it crashed there). From my experience, you get very little help from sun/oracle
when using unorthodox flags like agressive opts without proper recreation. Well, you get very
little help there even when you do produce recreation... (see this issue that I opened for
example: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7066129) . I am the reason behind
Lucene 1.9.1 release with the major bug in buffering introduced in 1.9 way back in the days,
do you really think I would not contact if I thought there really was a problem associated
with Lucene?

> jrebug causes porter stemmer to sigsegv
> ---------------------------------------
>
>                 Key: LUCENE-3335
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3335
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 1.9, 1.9.1, 2.0.0, 2.1, 2.2, 2.3, 2.3.1, 2.3.2, 2.4, 2.4.1, 2.9,
2.9.1, 2.9.2, 2.9.3, 2.9.4, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.1, 3.2, 3.3, 3.4, 4.0
>         Environment: - JDK 7 Preview Release, GA (may also affect update _1, targeted
fix is JDK 1.7.0_2)
> - JDK 1.6.0_20+ with -XX:+OptimizeStringConcat or -XX:+AggressiveOpts
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>              Labels: Java7
>         Attachments: LUCENE-3335.patch, LUCENE-3335_slow.patch, patch-0uwe.patch
>
>
> happens easily on java7: ant test -Dtestcase=TestPorterStemFilter -Dtests.iter=100
> might happen on 1.6.0_u26 too, a user reported something that looks like the same bug
already:
> http://www.lucidimagination.com/search/document/3beaa082c4d2fdd4/porterstemfilter_kills_jvm

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