From: Operating system: Linux x86 PHP version: 5.3SVN-2011-09-07 (snap) Package: Class/Object related Bug Type: Bug Bug description:GC causes SEGFAULT
Description: ------------ PHP sometimes ends with segfault. It actually works with gc_disabled(). Test script: --------------- Im unable to reproduce it with small script and I cannot provide whole application, it is possible to discover where problem is only with backtrace from GDB?. Expected result: ---------------- no SEGFAULT Actual result: -------------- #0 zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:372 #1 0x083bb129 in zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:379 #2 0x083bb129 in zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:379 #3 0x083bb129 in zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:379 #4 0x083bb129 in zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:379 #5 0x083bb129 in zval_mark_grey (pz=0xa059808) at /home/lm/php-5.3.8/Zend/zend_gc.c:379 #6 0x083bb9ed in gc_mark_roots () at /home/lm/php-5.3.8/Zend/zend_gc.c:435 #7 gc_collect_cycles () at /home/lm/php-5.3.8/Zend/zend_gc.c:664 #8 0x083bbbfb in gc_zval_possible_root (zv=0xa995780) at /home/lm/php-5.3.8/Zend/zend_gc.c:166 #9 0x0841692e in gc_zval_check_possible_root (execute_data=0x2) at /home/lm/php-5.3.8/Zend/zend_gc.h:183 #10 zend_pzval_unlock_func (execute_data=0x2) at /home/lm/php-5.3.8/Zend/zend_execute.c:80 #11 _get_zval_ptr_var (execute_data=0x2) at /home/lm/php-5.3.8/Zend/zend_execute.c:211 #12 ZEND_ASSIGN_SPEC_CV_VAR_HANDLER (execute_data=0x2) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:27425 #13 0x083c3396 in execute (op_array=0x9fd1f44) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:107 #14 0x083963da in zend_call_function (fci=0xbfd7cd00, fci_cache=0xbfd7cd24) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:968 #15 0x082de05b in zif_call_user_func_array (ht=2, return_value=0xa5bf698, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /home/lm/php-5.3.8/ext/standard/basic_functions.c:4797 #16 0x083e7691 in zend_do_fcall_common_helper_SPEC (execute_data=0x9f605d4) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:320 #17 0x083c3396 in execute (op_array=0xa058148) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:107 #18 0x083963da in zend_call_function (fci=0xbfd7cf9c, fci_cache=0xbfd7cfc0) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:968 #19 0x083b510b in zend_call_method (object_pp=0x9f42860, obj_ce=0xa094fdc, fn_proxy=0x9f4285c, function_name=0x9f51090 "nette\\loaders\\robotloader::tryload*", function_name_len=39, retval_ptr_ptr=0xbfd7d068, param_count=1, arg1=0xa4cda10, arg2=0x0) at /home/lm/php-5.3.8/Zend/zend_interfaces.c:97 #20 0x0826bc0a in zif_spl_autoload_call (ht=1, return_value=0xa535e3c, return_value_ptr=0xbfd7d250, this_ptr=0x0, return_value_used=1) at /home/lm/php-5.3.8/ext/spl/php_spl.c:405 #21 0x0839648a in zend_call_function (fci=0xbfd7d208, fci_cache=0xbfd7d22c) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:990 #22 0x083969eb in zend_lookup_class_ex (name=0xa58c5fc "I\\have\\to\\hide\\className", name_length=39, use_autoload=1, ce=0xbfd7d2ac) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:1125 #23 0x08396cb3 in zend_fetch_class (class_name=0xa58c5fc "I\\have\\to\\hide\\className", class_name_len=39, fetch_type=4) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:1567 #24 0x083c1f25 in ZEND_FETCH_CLASS_SPEC_CONST_HANDLER (execute_data=0x9f5f4f0) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:731 #25 0x083c3396 in execute (op_array=0xa58bc4c) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:107 #26 0x083963da in zend_call_function (fci=0xbfd7d49c, fci_cache=0xbfd7d4c0) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:968 #27 0x083b510b in zend_call_method (object_pp=0x9f42860, obj_ce=0xa094fdc, fn_proxy=0x9f4285c, function_name=0x9f51090 "nette\\loaders\\robotloader::tryload*", function_name_len=39, retval_ptr_ptr=0xbfd7d568, param_count=1, arg1=0xa4cbc28, arg2=0x0) at /home/lm/php-5.3.8/Zend/zend_interfaces.c:97 #28 0x0826bc0a in zif_spl_autoload_call (ht=1, return_value=0xa54d134, return_value_ptr=0xbfd7d760, this_ptr=0x0, return_value_used=1) at /home/lm/php-5.3.8/ext/spl/php_spl.c:405 #29 0x0839648a in zend_call_function (fci=0xbfd7d718, fci_cache=0xbfd7d73c) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:990 #30 0x083969eb in zend_lookup_class_ex (name=0xa35f380 "I\\have\\to\\hide\\className", name_length=61, use_autoload=1, ce=0xbfd7d7bc) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:1125 #31 0x08396cb3 in zend_fetch_class (class_name=0xa35f380 "I\\have\\to\\hide\\className", class_name_len=61, fetch_type=4) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:1567 #32 0x083c1f25 in ZEND_FETCH_CLASS_SPEC_CONST_HANDLER (execute_data=0x9f5edb4) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:731 #33 0x083c3396 in execute (op_array=0xa393054) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:107 #34 0x083963da in zend_call_function (fci=0xbfd7d9a8, fci_cache=0xbfd7d9cc) at /home/lm/php-5.3.8/Zend/zend_execute_API.c:968 #35 0x08219d25 in zim_reflection_method_invokeArgs (ht=2, return_value=0xa4bfa48, return_value_ptr=0x0, this_ptr=0xa4bfaa8, return_value_used=1) at /home/lm/php-5.3.8/ext/reflection/php_reflection.c:2750 #36 0x083e7691 in zend_do_fcall_common_helper_SPEC (execute_data=0x9f5eb4c) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:320 #37 0x083c3396 in execute (op_array=0xa4c7c7c) at /home/lm/php-5.3.8/Zend/zend_vm_execute.h:107 #38 0x0839f4e6 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/lm/php-5.3.8/Zend/zend.c:1236 #39 0x0834e636 in php_execute_script (primary_file=0xbfd81fa8) at /home/lm/php-5.3.8/main/main.c:2284 #40 0x08428d37 in main (argc=1, argv=0xbfd82104) at /home/lm/php-5.3.8/sapi/fpm/fpm/fpm_main.c:1902 -- Edit bug report at https://bugs.php.net/bug.php?id=55630&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=55630&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=55630&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=55630&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=55630&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55630&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=55630&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=55630&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=55630&r=needscript Try newer version: https://bugs.php.net/fix.php?id=55630&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=55630&r=support Expected behavior: https://bugs.php.net/fix.php?id=55630&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=55630&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=55630&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=55630&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=55630&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=55630&r=dst IIS Stability: https://bugs.php.net/fix.php?id=55630&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=55630&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=55630&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=55630&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=55630&r=mysqlcfg
