#34435 [NEW]: segmentation fault on object serialize

From: voxus at mail dot ru Operating system: Gentoo Linux PHP version: 5.0.5 PHP Bug Type: Reproducible crash Bug description: segmentation fault on object serialize Description: ------------ php is crashing when trying to serialize any given object. problem is reproducible on x86_64 arch (known to be ok on x86 with any sane CFLAGS) with php-5.0.5 (5.0.4 is ok), for example - AMD Athlon(tm) 64 Processor 3200+. recompilation with CFLAGS="-O0" or with debug symbols "solves" the problem. Reproduce code: --------------- compile php with CFLAGS="-O2" (yes, nothing more here) execute from cli: class foo { public function bah() { var_dump(serialize($this)); } } $foo = new foo(); $foo->bah(); Expected result: ---------------- var_dump'ed serialized object, i.e. - just string Actual result: -------------- segmentation fault. backtrace from php: (gdb) bt #0 0x00000037ecf6fb9b in memcpy () from /lib/libc.so.6 #1 0x000000000053c8ed in zif_var_export () #2 0x000000000053e419 in php_var_serialize () #3 0x000000000053e4d6 in zif_serialize () #4 0x00000000005c76cb in zend_do_fcall_common_helper () #5 0x00000000005c7941 in zend_do_fcall_handler () #6 0x00000000005bad54 in execute () #7 0x00000000005c721e in zend_do_fcall_common_helper () #8 0x00000000005bad54 in execute () #9 0x0000000000597806 in zend_execute_scripts () #10 0x000000000055e379 in php_execute_script () #11 0x00000000005d1779 in main () -- Edit bug report at http://bugs.php.net/?id=34435&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34435&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=34435&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=34435&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=34435&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=34435&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=34435&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=34435&r=needscript Try newer version: http://bugs.php.net/fix.php?id=34435&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=34435&r=support Expected behavior: http://bugs.php.net/fix.php?id=34435&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=34435&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=34435&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=34435&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34435&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=34435&r=dst IIS Stability: http://bugs.php.net/fix.php?id=34435&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=34435&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=34435&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=34435&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=34435&r=mysqlcfg