Bug #63405 [Com]: Segfault with traits and namespaces and as operator

Edit report at https://bugs.php.net/bug.php?id=63405&edit=1 ID: 63405 Comment by: mbretter@php.net Reported by: mbretter@php.net Summary: Segfault with traits and namespaces and as operator Status: Open Type: Bug Package: Scripting Engine problem Operating System: Ubuntu 12.04 32bit PHP Version: 5.4.8 Block user comment: N Private report: N New Comment: I could reduce it to the relevant files: http://www.1401.at/phpcrash.tgz => just invoke index.php several times, the crash occurs reliably ;) Previous Comments: ------------------------------------------------------------------------ [2012-10-31 14:39:43] laruence@php.net could you give us a complete test script? ------------------------------------------------------------------------ [2012-10-31 09:30:49] mbretter@php.net Description: ------------ It looks like that this segfault occurs on every second request, when using namespaces + traits + autloader + 'as' operator. Without 'as' op it works. Test script: --------------- <?php namespace app\modules\backend\rest\controllers; class Language extends Generic { use \app\traits\rest\Mongo { \app\traits\rest\Mongo::setQueryParam as _setQueryParam; } .... public function setQueryParam(&$query, $p, $op, $v) { switch ($p) { case 'name': // whatever break; default: $this->_setQueryParam($query, $p, $op, $v); } } ... } Actual result: -------------- Program received signal SIGSEGV, Segmentation fault. zend_do_bind_traits (ce=0xb6c0873c) at /build/buildd/php5-5.4.8/Zend/zend_compile.c:4029 4029 /build/buildd/php5-5.4.8/Zend/zend_compile.c: No such file or directory. (gdb) bt #0 zend_do_bind_traits (ce=0xb6c0873c) at /build/buildd/php5-5.4.8/Zend/zend_compile.c:4029 #1 0xb6785bab in ZEND_BIND_TRAITS_SPEC_HANDLER (execute_data=0xb75ab04c) at /build/buildd/php5-5.4.8/Zend/zend_vm_execute.h:1027 #2 0xb67bc975 in execute (op_array=0xb67442a6) at /build/buildd/php5-5.4.8/Zend/zend_vm_execute.h:410 #3 0xb67442a6 in zend_call_function (fci=0x0, fci_cache=0x0) at /build/buildd/php5-5.4.8/Zend/zend_execute_API.c:958 #4 0xb676abd4 in zend_call_method (object_pp=<error reading variable: Unknown argument list address for object_pp'.>, obj_ce=<error reading variable: Unknown argument list address for obj_ce'.>, fn_proxy=<error reading variable: Unknown argument list address for fn_proxy'.>, function_name=<error reading variable: Unknown argument list address for function_name'.>, function_name_len=<error reading variable: Unknown argument list address for function_name_len'.>, retval_ptr_ptr=<error reading variable: Unknown argument list address for retval_ptr_ptr'.>, param_count=<error reading variable: Unknown argument list address for param_count'.>, arg1=<error reading variable: Unknown argument list address for arg1'.>, arg2=<error reading variable: Unknown argument list address for `arg2'.>) at /build/buildd/php5-5.4.8/Zend/zend_interfaces.c:97 #5 0xb662772a in zif_spl_autoload_call (ht=0, return_value=0x1, return_value_ptr=0x80225b58, this_ptr=0x0, return_value_used=-2145232000) at /build/buildd/php5-5.4.8/ext/spl/php_spl.c:436 #6 0xb6744379 in zend_call_function (fci=0x5283354c, fci_cache=0xbfffcd0b) at /build/buildd/php5-5.4.8/Zend/zend_execute_API.c:980 #7 0xb6744b8d in zend_lookup_class_ex (name=0x802278a8 "app\\modules\\backend\\rest\\controllers\\Language", name_length=45, key=0x0, use_autoload=1, ce=0xbfffcda0) at /build/buildd/php5-5.4.8/Zend/zend_execute_API.c:1127 #8 0xb6744d4b in zend_lookup_class (name=0x802278a8 "app\\modules\\backend\\rest\\controllers\\Language", name_length=45, ce=0xbfffcda0) at /build/buildd/php5-5.4.8/Zend/zend_execute_API.c:1152 #9 0xb6764d21 in zif_class_exists (ht=2, return_value=0x80225924, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /build/buildd/php5-5.4.8/Zend/zend_builtin_functions.c:1233 #10 0xb6800dfa in zend_do_fcall_common_helper_SPEC (execute_data=0xb75aa9f0) at /build/buildd/php5-5.4.8/Zend/zend_vm_execute.h:642 #11 0xb67bc975 in execute (op_array=0xb6753729) at /build/buildd/php5-5.4.8/Zend/zend_vm_execute.h:410 #12 0xb6753729 in zend_execute_scripts (type=0, retval=0xbffff164, file_count=0) at /build/buildd/php5-5.4.8/Zend/zend.c:1309 #13 0xb66ecdae in php_execute_script (primary_file=0xbffff164) at /build/buildd/php5-5.4.8/main/main.c:2482 #14 0xb68036c0 in php_handler (r=0xb2c61888) at /build/buildd/php5-5.4.8/sapi/apache2handler/sapi_apache2.c:682 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63405&edit=1