From:             mbecc...@php.net
Operating system: FreeBSD 6.2
PHP version:      5.3CVS-2009-04-01 (CVS)
PHP Bug Type:     Arrays related
Bug description:  array() returns NULL

Description:
------------
Again, another bug happening in a unit test of OpenX. The problem always
happens in the same test at the same point. What happens is that a simple
array() call is returning NULL on my FreeBSD system. The same test
generates a segmentation fault when run on our Linux based continuous
integration system.

Unfortunately I can't create a self-contained test case, but I can provide
access to the system or more data.

I will also attach a backtrace of the core dump (which might even not be
happening at the same place as the FreeBSD failure).

Reproduce code:
---------------
$ids = array();
echo 'On FreeBSD: ';
var_dump($ids);

Expected result:
----------------
On FreeBSD: Array ()

Actual result:
--------------
On FreeBSD: NULL

Backtrace (Linux):

Program terminated with signal 11, Segmentation fault.
(gdb) bt full
#0  ZEND_ASSIGN_SPEC_CV_VAR_HANDLER (execute_data=0x2aaaaecf02d8) at
/usr/local/src/php-5.3.0RC1/Zend/zend_execute.c:664
        opline = (zend_op *) 0x12eb418
        free_op2 = {var = 0x273c0d0}
        value = (zval *) 0x1
        variable_ptr_ptr = (zval **) 0x2a0e848
#1  0x00000000007242fb in execute (op_array=0x10fdf40) at
/usr/local/src/php-5.3.0RC1/Zend/zend_vm_execute.h:104
        ret = <value optimized out>
        execute_data = (zend_execute_data *) 0x2aaaaecf02d8
        nested = 1 '\001'
        original_in_execution = 0 '\0'
#2  0x0000000000701306 in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /usr/local/src/php-5.3.0RC1/Zend/zend.c:1188
        files = {{gp_offset = 40, fp_offset = 73, overflow_arg_area =
0x7fffbdf97f10, reg_save_area = 0x7fffbdf97e20}}
        i = 1
        file_handle = (zend_file_handle *) 0x7fffbdf9a3e0
        orig_op_array = (zend_op_array *) 0x0
        orig_retval_ptr_ptr = (zval **) 0x0
#3  0x00000000006ae155 in php_execute_script (primary_file=0x7fffbdf9a3e0)
at /usr/local/src/php-5.3.0RC1/main/main.c:2157
        __orig_bailout = (jmp_buf *) 0x7fffbdf9a1c0
        __bailout = {{__jmpbuf = {15364672, 903771196811129754, 1, 0, 0,
0, 903771196811177402, 903720367174677233}, __mask_was_saved = 0,
__saved_mask = {__val = {48, 7, 15372768, 9416, 216135044429,
        17634384, 229440404087961, 48, 7403025, 15235744, 0, 206158430215,
140736380641392, 17634352, 17634352, 140736380641392}}}}
        prepend_file_p = (zend_file_handle *) 0x0
        append_file_p = (zend_file_handle *) 0x8
        prepend_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0,
opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0,
isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0,
        old_handle = 0x0, old_closer = 0}, reader = 0, fsizer = 0, closer
= 0}}, free_filename = 0 '\0'}
        append_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0,
opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0,
isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0,
        old_handle = 0x0, old_closer = 0}, reader = 0, fsizer = 0, closer
= 0}}, free_filename = 0 '\0'}
        old_cwd = 0x7fffbdf97f20 ""
        retval = 0
#4  0x000000000078bcee in main (argc=10, argv=0x7fffbdf9a658) at
/usr/local/src/php-5.3.0RC1/sapi/cli/php_cli.c:1159
        __bailout = {{__jmpbuf = {216132590528, 903720367176127146, 0,
140736380642896, 110, 0, 903771196811129834, 903720367173477278},
__mask_was_saved = 0, __saved_mask = {__val = {140736380642608,
        140736380642416, 57, 112, 15369344, 15369328, 216135048496,
216138037600, 81, 140736380641952, 216135037715, 47, 96, 50, 216130423719,
15369344}}}}
        exit_status = 0
        c = <value optimized out>
        file_handle = {type = ZEND_HANDLE_MAPPED, filename =
0x7fffbdf9a935 "run.php", opened_path = 0x0, handle = {fd = 17477016, fp =
0x10aad98, stream = {handle = 0x10aad98, isatty = 0, mmap = {
        len = 5351, pos = 0, map = 0x2aaaaed69000, buf = 0x2aaaaed69000
"", old_handle = 0x10d10b0, old_closer = 0x715dd0
<zend_stream_stdio_closer>}, reader = 0x716390 <zend_stream_stdio_reader>,
      fsizer = 0x7162d0 <zend_stream_stdio_fsizer>, closer = 0x716320
<zend_stream_mmap_closer>}}, free_filename = 0 '\0'}
        behavior = 1
        reflection_what = 0x0
        orig_optind = 1
        orig_optarg = 0x0
        arg_free = 0x7fffbdf9a935 "run.php"
        arg_excp = <value optimized out>
        script_file = 0x7fffbdf9a935 "run.php"
        interactive = 0
        module_started = 1
        request_started = 1
        lineno = 1
        exec_direct = 0x0
        exec_run = 0x0
        exec_begin = 0x0
        exec_end = 0x0
        param_error = <value optimized out>
        hide_argv = 0
        ini_entries_len = <value optimized out>


-- 
Edit bug report at http://bugs.php.net/?id=47870&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=47870&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=47870&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=47870&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=47870&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=47870&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=47870&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=47870&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=47870&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=47870&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=47870&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=47870&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=47870&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=47870&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=47870&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=47870&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=47870&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=47870&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=47870&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=47870&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=47870&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=47870&r=mysqlcfg

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