From: Operating system: Linux (Ubuntu) PHP version: 5.3.4 Package: DOM XML related Bug Type: Bug Bug description:Intermittent Seg Fault during DOMDocument clean up
Description: ------------ libxml causes a seg fault *intermittently* after all PHP user code has finished running. I'm using DOMFragment to parse chunks of XHTML and append them to a DOMDocument which gets output (via saveHTML) once it's completely assembled. The output completes successfully but at least half the time I get seg fault related to the clean up of the DOMDocument and no response is sent to the client. Core Dump: #0 0x00007fb2f77c6e6f in xmlDictOwns () from /usr/lib/libxml2.so.2 #1 0x00007fb2f77276a7 in xmlFreeNodeList () from /usr/lib/libxml2.so.2 #2 0x00007fb2f76ff85f in ?? () from /usr/lib/libxml2.so.2 #3 0x00007fb2f772f256 in xmlHashFree () from /usr/lib/libxml2.so.2 #4 0x00007fb2f7727335 in xmlFreeDtd () from /usr/lib/libxml2.so.2 #5 0x00007fb2f772746a in xmlFreeDoc () from /usr/lib/libxml2.so.2 #6 0x00007fb2f8409d5b in php_libxml_decrement_doc_ref () from /usr/lib/apache2/modules/libphp5.so #7 0x00007fb2f842e8cf in ?? () from /usr/lib/apache2/modules/libphp5.so #8 0x00007fb2f8661adc in zend_objects_store_del_ref_by_handle_ex () from /usr/lib/apache2/modules/libphp5.so #9 0x00007fb2f8661b03 in zend_objects_store_del_ref () from /usr/lib/apache2/modules/libphp5.so #10 0x00007fb2f86301cd in _zval_ptr_dtor () from /usr/lib/apache2/modules/libphp5.so #11 0x00007fb2f8649198 in zend_hash_destroy () from /usr/lib/apache2/modules/libphp5.so #12 0x00007fb2f863c19f in _zval_dtor_func () from /usr/lib/apache2/modules/libphp5.so #13 0x00007fb2f86301cd in _zval_ptr_dtor () from /usr/lib/apache2/modules/libphp5.so #14 0x00007fb2f8649198 in zend_hash_destroy () from /usr/lib/apache2/modules/libphp5.so #15 0x00007fb2f865e0d9 in zend_object_std_dtor () from /usr/lib/apache2/modules/libphp5.so #16 0x00007fb2f865e0f9 in zend_objects_free_object_storage () from /usr/lib/apache2/modules/libphp5.so #17 0x00007fb2f8661adc in zend_objects_store_del_ref_by_handle_ex () from /usr/lib/apache2/modules/libphp5.so #18 0x00007fb2f8661b03 in zend_objects_store_del_ref () from /usr/lib/apache2/modules/libphp5.so #19 0x00007fb2f86301cd in _zval_ptr_dtor () from /usr/lib/apache2/modules/libphp5.so #20 0x00007fb2f8649198 in zend_hash_destroy () from /usr/lib/apache2/modules/libphp5.so #21 0x00007fb2f863c19f in _zval_dtor_func () from /usr/lib/apache2/modules/libphp5.so #22 0x00007fb2f86301cd in _zval_ptr_dtor () from /usr/lib/apache2/modules/libphp5.so #23 0x00007fb2f8649198 in zend_hash_destroy () from /usr/lib/apache2/modules/libphp5.so #24 0x00007fb2f865e0d9 in zend_object_std_dtor () from /usr/lib/apache2/modules/libphp5.so #25 0x00007fb2f865e0f9 in zend_objects_free_object_storage () from /usr/lib/apache2/modules/libphp5.so #26 0x00007fb2f86615ec in zend_objects_store_free_object_storage () from /usr/lib/apache2/modules/libphp5.so #27 0x00007fb2f86305c5 in ?? () from /usr/lib/apache2/modules/libphp5.so #28 0x00007fb2f863cee2 in ?? () from /usr/lib/apache2/modules/libphp5.so #29 0x00007fb2f85e8b75 in php_request_shutdown () from /usr/lib/apache2/modules/libphp5.so -- Edit bug report at http://bugs.php.net/bug.php?id=53569&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53569&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53569&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53569&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53569&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53569&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53569&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53569&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53569&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53569&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53569&r=support Expected behavior: http://bugs.php.net/fix.php?id=53569&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53569&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53569&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53569&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53569&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53569&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53569&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53569&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53569&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53569&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53569&r=mysqlcfg
