#41645 [Opn->Fbk]: php crashes with an empty function (works with --enable-debug !!)

ID: 41645 Updated by: scottmac@php.net Reported By: slogster at gmail dot com -Status: Open +Status: Feedback Bug Type: Reproducible crash Operating System: FreeBSD 6-STABLE PHP Version: 5.2.3 New Comment: Definately unable to reproduce without a debug build, if you can then recompile PHP without debug mode but leave debug symbols in to give a more detailed back trace. export CFLAGS="-g" make clean, configure and compile. If you can disable all extensions and only enable the minimum you require. Previous Comments: ------------------------------------------------------------------------ [2007-06-11 20:11:39] stas@php.net Such simple code is unlikely to crash as a result of any bug in PHP engine. The problem is probably elsewhere - such as incompatible extensions linked together, wrong library versions, broken compilation, compiler bug, using module/extension of incompatible version, etc. ------------------------------------------------------------------------ [2007-06-10 11:45:32] slogster at gmail dot com Hm, this is strange. When I compile it with debug it works! Doesn`t do Segmentation Fault. I don`t have any third party extentions. Can you please test it without debug enabled? ------------------------------------------------------------------------ [2007-06-10 01:42:06] scottmac@php.net Can you recompile PHP with --enable-debug please so we can get some more useful information. Also do you have any sort of third party zend extensions like APC, eAccelerator or Zend Optimizer? If so they should be disabled as well and test again. ------------------------------------------------------------------------ [2007-06-09 23:54:10] slogster at gmail dot com (gdb) bt #0 0x0814ed7c in _zval_ptr_dtor () #1 0x08182072 in zend_do_fcall_common_helper_SPEC () #2 0x08181b6c in execute () #3 0x081615cf in zend_execute_scripts () #4 0x081175a6 in php_execute_script () #5 0x00000000 in ?? () #6 0x00000003 in ?? () #7 0x00000000 in ?? () #8 0xbfbfec00 in ?? () #9 0x00000000 in ?? () #10 0x00000002 in ?? () #11 0x65646f63 in ?? () #12 0x00000000 in ?? () #13 0xbfbfe85c in ?? () #14 0x00000002 in ?? () #15 0x08164e67 in zend_register_functions () Previous frame inner to this frame (corrupt stack?) (gdb) frame 2 #2 0x08181b6c in execute () ------------------------------------------------------------------------ [2007-06-09 23:12:43] scottmac@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. I however can't reproduce this with the provided test case. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/41645 -- Edit this bug report at http://bugs.php.net/?id=41645&edit=1