Last modified: 2012-02-09 23:02:07 UTC
while i was doing a wikipedia dump on my local machine i got segfaults for three segfaults for three specific ids in refreshLinks.php and dumpHTML.php. as this error occurred in both scripts i assume that they are not specific to these maintenance scripts. here is my php version: PHP 5.2.4-2ubuntu5.1 with Suhosin-Patch 0.9.6.2 (cli) (built: May 9 2008 16:54:00) Copyright (c) 1997-2007 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies with Xdebug v2.0.2, Copyright (c) 2002-2007, by Derick Rethans as you can see i installed xdebug to get a trace for my errors and to increase the maximum function nesting level but the error also occurs without xdebug. and my machine: Linux mediawiki 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC 2008 x86_64 GNU/Linux i run ubuntu 8.04 hardy and use the latest mediawiki from svn (r35317) but the segfaults were also there when i checked it out a week ago. to reproduce the segfaults just import this xml dump with mwdumper: http://download.wikimedia.org/dewiki/20080422/dewiki-20080422-pages-articles.xml.bz2 and then do: php extensions/DumpHTML/dumpHTML.php -s <startid> and php maintenance/refreshLinks.php <startid> where startid is one of the following numbers: 80377 180324 185305 you will get the segfault immediately with both scripts!
id 403232 has the same issue
unfortunately xdebug doesnt output anything. with gdb i get this backtrace: #0 0x00000000006720df in zend_objects_store_del_ref_by_handle () #1 0x00000000006722af in zend_objects_store_del_ref () #2 0x00000000006478b6 in _zval_ptr_dtor () #3 0x000000000065f153 in zend_hash_destroy () #4 0x000000000066edd9 in zend_object_std_dtor () [...] these five lines get repeated 27141 times!!! [...] #135707 0x000000000066edf9 in zend_objects_free_object_storage () #135708 0x0000000000672278 in zend_objects_store_del_ref_by_handle () #135709 0x00000000006722af in zend_objects_store_del_ref () #135710 0x00000000006478b6 in _zval_ptr_dtor () #135711 0x000000000065f3d3 in zend_hash_clean () #135712 0x000000000068244f in ?? () #135713 0x00000000006737f3 in execute () #135714 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135715 0x0000000000682334 in ?? () #135716 0x00000000006737f3 in execute () #135717 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135718 0x0000000000682334 in ?? () #135719 0x00000000006737f3 in execute () #135720 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135721 0x0000000000682334 in ?? () #135722 0x00000000006737f3 in execute () #135723 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135724 0x0000000000682334 in ?? () #135725 0x00000000006737f3 in execute () #135726 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135727 0x0000000000682334 in ?? () #135728 0x00000000006737f3 in execute () #135729 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135730 0x0000000000682334 in ?? () #135731 0x00000000006737f3 in execute () #135732 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135733 0x0000000000682334 in ?? () #135734 0x00000000006737f3 in execute () #135735 0x00007f0d7ba30ff7 in xdebug_execute () from /usr/lib/php5/20060613/xdebug.so #135736 0x0000000000654143 in zend_execute_scripts () #135737 0x00000000006103ba in php_execute_script () #135738 0x00000000006de772 in main ()
Does this still occur?
Closing as
Josch, if you can still reproduce this error with the current version of MediaWiki (that's in our Subversion trunk), please reopen and let us know. Thanks.
