Yes, go ahead.
-----Original Message-----
From: cel tix44 [mailto:celti...@gmail.com]
Sent: Friday, November 06, 2009 12:38 AM
To: clucene-developers@lists.sourceforge.net
Subject: Re: [CLucene-dev] Crash when StandardAnalyzer used with empty
stoplist- GIT ba954e917f6ac8d96230b307e7d807ace2ac5c35
Itamar
Thanks for your response. Would it be okay to send it via email, with an
attached zip that would contain the index files + VS project + source code?
I'm on Visual Studio 2008.
Regards
Celto
On Fri, Nov 6, 2009 at 9:13 AM, Itamar Syn-Hershko <ita...@divrei-tora.com>
wrote:
> Hi,
>
> Running the following test, I hit no AV. If you can make a minified
> version of your use-case and send it over, that would help.
>
> I will look at the other issue when I'll have time later. If you or
> Michael could send a similar test function demonstrating that issue
> using the minimalistic approach that would greatly help.
>
> void testEmptyStopList(CuTest *tc)
> {
> StandardAnalyzer a((const TCHAR**)_T("\0"));
> RAMDirectory ram;
> IndexWriter writer(&ram, &a, true);
>
> Document doc;
> doc.add(*(_CLNEW lucene::document::Field(
> _T("First"), _T("Blah blah blah"), Field::STORE_YES |
> Field::INDEX_TOKENIZED)));
> writer.addDocument(&doc);
> writer.close();
>
> IndexSearcher searcher(&ram);
> Query* q = QueryParser::parse(_T("blah"), _T("First"), &a);
> Hits* h = searcher.search(q);
> _CLLDELETE(h);
> _CLLDELETE(q);
> }
>
> Itamar.
>
> -----Original Message-----
> From: cel tix44 [mailto:celti...@gmail.com]
> Sent: Thursday, November 05, 2009 5:04 PM
> To: clucene-developers@lists.sourceforge.net
> Subject: [CLucene-dev] Crash when StandardAnalyzer used with empty
> stop
> list- GIT ba954e917f6ac8d96230b307e7d807ace2ac5c35
>
> Itamar
>
> RE: GIT snapshot "ASCII + misc fixes"
> http://clucene.git.sourceforge.net/git/gitweb.cgi?p=clucene/clucene;a=
> snapsh ot;h=ba954e917f6ac8d96230b307e7d807ace2ac5c35;sf=tgz
>
> Using: Visual Studio 2008, CMake 2.6.4, ENABLE_ASCII_MODE = True,
> DISABLE_MULTITHREADING = True
>
> Problem: Access Violation occurs when using StandardAnalyzer with an
> empty stop list.
>
> Unfortunately, it's not easy to reproduce -- it only occurs on certain
> data with a certain query, but what's happening, roughly, is this:
>
> 1) create StandardAnalyzer with an empty stop list:
> az = _CLNEW lucene::analysis::standard::StandardAnalyzer( (const
> TCHAR**)"\0" );
> 2) index some data
> 3) run a certain query: h = s->search(q);
> 4) when MultiLevelSkipListReader::~MultiLevelSkipListReader() is
> exiting,
> ObjectArray->deleteValues() gets invoked and it crashes while looping
> through values.
> 5) the array element that causes the crash points to a memory block
> filled with 0xFEEEFEEE
> 6) looks like this memory has been previously freed.
>
> I'll keep the index and the code that runs the query that results in
> the crash in case you or someone else would want to have a look.
>
> Regards
> Celto
>
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