#39640 [NEW]: Segfault with "Allowed memory size exhausted"

From: phpbugs at thequod dot de Operating system: Ubuntu Linux PHP version: 5CVS-2006-11-26 (CVS) PHP Bug Type: Reproducible crash Bug description: Segfault with "Allowed memory size exhausted" Description: ------------ If the memory limit gets exhausted in a line like: $a = new stdClass; PHP segfaults during shutdown. Reproduce code: --------------- <?php $o = new stdClass; $i = 0; while( ++$i ) { $a = new stdClass; $a->foo = rand(1000, 9999); $a->bar = rand(1000, 9999); $o->a[$i] = $a; } ?> Expected result: ---------------- No segmentation fault. Actual result: -------------- Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 40 bytes) in /X/memory_usage1.php on line 8 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1218541376 (LWP 549)] _zend_mm_free_int (heap=0x8606160, p=0x860624c) at /PHP_5_2/Zend/zend_alloc.c:1332 1332 /PHP_5_2/Zend/zend_alloc.c: No such file or directory. in /PHP_5_2/Zend/zend_alloc.c (gdb) bt #0 _zend_mm_free_int (heap=0x8606160, p=0x860624c) at /PHP_5_2/Zend/zend_alloc.c:1332 #1 0x0831a5e2 in zend_object_std_dtor (object=0xb6586ff0) at /PHP_5_2/Zend/zend_objects.c:45 #2 0x0831a60a in zend_objects_free_object_storage (object=0xb6586ff0) at /PHP_5_2/Zend/zend_objects.c:122 #3 0x0831d4ef in zend_objects_store_free_object_storage (objects=0x8605988) at /PHP_5_2/Zend/zend_objects_API.c:89 #4 0x082f9b75 in shutdown_executor () at /PHP_5_2/Zend/zend_execute_API.c:299 #5 0x08304cf4 in zend_deactivate () at /PHP_5_2/Zend/zend.c:841 #6 0x082c9290 in php_request_shutdown (dummy=0x0) at /PHP_5_2/main/main.c:1306 #7 0x083882ad in main (argc=3, argv=0xbf8aef94) at /PHP_5_2/sapi/cgi/cgi_main.c:1792 -- Edit bug report at http://bugs.php.net/?id=39640&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39640&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39640&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39640&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39640&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39640&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39640&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39640&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39640&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39640&r=support Expected behavior: http://bugs.php.net/fix.php?id=39640&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39640&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39640&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39640&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39640&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39640&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39640&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39640&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39640&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39640&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39640&r=mysqlcfg