Ferret talk - Sep 2006 - Crashes and tests failures again with 0.10.4

In the beginning 0.10.4 looked promising, but now that my index has 
grown to > 100 MB I''m getting segfaults on some searches again:
>> Post.find_by_contents(''rubyforum'')
# ok
>> Post.find_by_contents(''ruby-forum'')
/usr/local/lib/ruby/gems/1.8/gems/ferret-0.10.4/lib/ferret/index.rb:351: 
[BUG] Segmentation fault
ruby 1.8.4 (2005-12-24) [i686-linux]

The tests run fine on Linux, on OS X testall crashes with a segfault on 
test_index and several of the Ruby tests fail:

  1) Failure:
test_sorts(SearchAndSortTest)
   
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:40:in
`do_test_top_docs''
    
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:39:in
`do_test_top_docs''
    
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:113:in
`test_sorts'']:
<8> expected but was
<1>.

  2) Failure:
test_boolean_query(SearcherTest)
   
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_index_searcher.rb:39:in
`check_hits''
    
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tm_searcher.rb:90:in
`test_boolean_query'']:
<14> expected but was
<2>.

  3) Failure:
test_boolean_query(SimpleMultiSearcherTest)
   
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_index_searcher.rb:39:in
`check_hits''
    
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tm_searcher.rb:90:in
`test_boolean_query'']:
<14> expected but was
<2>.

149 tests, 11066 assertions, 3 failures, 0 errors

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On 9/15/06, Andreas Schwarz <f at andreas-s.net>
wrote:
> In the beginning 0.10.4 looked promising, but now that my index has
> grown to > 100 MB I''m getting segfaults on some searches again:
>
> >> Post.find_by_contents(''rubyforum'')
> # ok
> >> Post.find_by_contents(''ruby-forum'')
> /usr/local/lib/ruby/gems/1.8/gems/ferret-0.10.4/lib/ferret/index.rb:351:
> [BUG] Segmentation fault
> ruby 1.8.4 (2005-12-24) [i686-linux]
>
> The tests run fine on Linux, on OS X testall crashes with a segfault on
> test_index and several of the Ruby tests fail:
>
>   1) Failure:
> test_sorts(SearchAndSortTest)
>    
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:40:in
> `do_test_top_docs''
>     
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:39:in
> `do_test_top_docs''
>     
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_search_and_sort.rb:113:in
> `test_sorts'']:
> <8> expected but was
> <1>.
>
>   2) Failure:
> test_boolean_query(SearcherTest)
>    
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_index_searcher.rb:39:in
> `check_hits''
>     
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tm_searcher.rb:90:in
> `test_boolean_query'']:
> <14> expected but was
> <2>.
>
>   3) Failure:
> test_boolean_query(SimpleMultiSearcherTest)
>    
[./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tc_index_searcher.rb:39:in
> `check_hits''
>     
./test/unit/../unit/analysis/../../unit/index/../../unit/query_parser/../../unit/search/tm_searcher.rb:90:in
> `test_boolean_query'']:
> <14> expected but was
> <2>.
>
> 149 tests, 11066 assertions, 3 failures, 0 errors
Hi Andreas,

Sorry for the slow reply. Do you think you would be able to run this
through gdb?

$ gdb ruby
(gdb) run yourscript.rb
(gdb) backtrace

Cheers,
Dave

One other question for you. What version of gcc do you have?

First a testall run on OS X (gcc version 4.0.0 20041026 (Apple Computer, 
Inc. build 4061)):
http://andreas-s.net/gdb-testall-segfault-osx.txt

My crashed search on Linux (gcc version 3.3.5 (Debian 1:3.3.5-13)):
http://andreas-s.net/gdb-mysearch-segfault.txt

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