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https://issues.apache.org/jira/browse/LUCENE-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-3335:
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Attachment: patch-0uwe.patch
Hi,
we had some success with direct communication to the hotspot developers.
The whole story:
- Java 7 contains a fix to the readVInt issue since 1.6.0_21 (approx,
LUCENE-2975), this fix was fortunately not included in 1.6.0_26
- This fix causes the SIGSEGV on Porter code, but also breaks other loops (e.g.
a strange CheckIndex failure in
org.apache.lucene.facet.search.SamplingWrapperTest)
- We had contact to the hotspot-compiler-dev list and Vladimir sent me the
patches, that should fix the bug. The attached patch is a combination of all
patches received, in a format suitable for the FreeBSD ports build framework.
Place the file in your port's "files/" folder and rebuild the package. In
Debian/Ubuntu you should be able to do the same thing by placing the file in
the debian/patches folder somehow.
- I have now disabled all jenkins builds and queued the Java 7 builds for 3.x
and trunk quarter-hourly. The machine now stress tests.
- We will report the resuls back to Oracle, but it seems that the attached
patch fixes the issues.
If they would have added their original broken fix to the 1.6.0_26 release it
would have been catastrophic...
> jrebug causes porter stemmer to sigsegv
> ---------------------------------------
>
> Key: LUCENE-3335
> URL: https://issues.apache.org/jira/browse/LUCENE-3335
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: 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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