ID: 50519 Updated by: j...@php.net -Summary: segfault when using set_error_handler and DomDocument Reported By: robin dot kunde at gmail dot com -Status: Open +Status: Verified Bug Type: Scripting Engine problem -Operating System: linux +Operating System: * -PHP Version: 5.3.1 +PHP Version: 5.3, 6 New Comment:
Happens with latest SVN, disabling GC makes the crash go away. Backtrace: Program received signal SIGSEGV, Segmentation fault. zval_mark_grey (pz=0xa6cb578) at /home/jani/src/php-5.3/Zend/zend_gc.c:360 360 pz = *(zval**)p->pData; (gdb) bt #0 zval_mark_grey (pz=0xa6cb578) at /home/jani/src/php-5.3/Zend/zend_gc.c:360 #1 0x082c5525 in gc_collect_cycles () at /home/jani/src/php-5.3/Zend/zend_gc.c:417 #2 0x082aa9d5 in zend_deactivate () at /home/jani/src/php-5.3/Zend/zend.c:900 #3 0x0825abcf in php_request_shutdown (dummy=0x0) at /home/jani/src/php-5.3/main/main.c:1606 #4 0x08329604 in main (argc=3, argv=0xbff82544) at /home/jani/src/php-5.3/sapi/cli/php_cli.c:1373 Previous Comments: ------------------------------------------------------------------------ [2009-12-18 17:32:38] robin dot kunde at gmail dot com that snapshot (200912181530) seems to be identical to the one i used (200912181330). anyway, the problem persists. ------------------------------------------------------------------------ [2009-12-18 16:27:30] johan...@php.net Please try using this snapshot: http://snaps.php.net/php5.3-latest.tar.gz For Windows: http://windows.php.net/snapshots/ sounds like #43918 ------------------------------------------------------------------------ [2009-12-18 16:17:35] robin dot kunde at gmail dot com Description: ------------ After setting a custom class based error handler, then using DomDocument, then setting the same error handler again, without resetting it first, PHP segfaults during shutdown. A function based error handler doesn't cause the problem. Executed the three commands in any other order doesn't cause the problem. tested with: php-5.3.1 php5.3-200912181330 (./configure --enable-debug) libxml2 (2.7.5) Reproduce code: --------------- <?php set_error_handler(array('ErrorHandler', 'handlePhpError')); new DomDocument(); set_error_handler(array('ErrorHandler', 'handlePhpError')); class ErrorHandler { static function handlePhpError($errno, $errstr, $errfile, $errline) { return true; } } >? Expected result: ---------------- nothing Actual result: -------------- segmentation fault backtrace: Program received signal SIGSEGV, Segmentation fault. zval_mark_grey (pz=0x86fafec) at /home/xxx/src/php5.3-200912181330/Zend/zend_gc.c:360 360 pz = *(zval**)p->pData; (gdb) bt #0 zval_mark_grey (pz=0x86fafec) at /home/xxx/src/php5.3-200912181330/Zend/zend_gc.c:360 #1 0x082f3aed in gc_mark_roots () at /home/xxx/src/php5.3-200912181330/Zend/zend_gc.c:417 #2 gc_collect_cycles () at /home/xxx/src/php5.3-200912181330/Zend/zend_gc.c:628 #3 0x082d85f5 in zend_deactivate () at /home/xxx/src/php5.3-200912181330/Zend/zend.c:900 #4 0x08287953 in php_request_shutdown (dummy=0x0) at /home/xxx/src/php5.3-200912181330/main/main.c:1606 #5 0x08357956 in main (argc=2, argv=0xbffff4c4) at /home/xxx/src/php5.3-200912181330/sapi/cli/php_cli.c:1373 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=50519&edit=1
