From:
Operating system: Windows Server 2003 SP2
PHP version: 5.3.2
Package: Scripting Engine problem
Bug Type: Bug
Bug description:Silent crash when memory usage >= 4MByte
Description:
------------
Hi,
I get a silent crash when I add data to an array. I access a com object and
an oracle database in the script but not while it crashes.
memory_get_usage(true) shows 3932160 bytes before script crashes.
Windows Task Manager shows php.exe mem usage building up to a maximum of
around 42,100 K when it crashes.
phpinfo() shows memory_limit => 256M => 256M
I use php.exe (VC6 thread safe) but get the same crash using php-win.exe or
via apache 2.2 module.
The script crashes on 5.3.0 as well but works on an older system using php
4.3.4 & Windows Server 2000 SP4.
Test script:
---------------
Can't provide entire script and include files but this is what I do when it
crashes:
for ($i=0;$i<20000;$i++) {
print "$i ";
$arr[$i][0]='2010-03-29 00:00:'+$i%100;
$arr[$i][1]=rand(1,100);
print memory_get_usage(true);
print "\r\n";
usleep(10);
}
print "ok";
Expected result:
----------------
I expect the script to loop 20000 times and finish by writing "ok".
Actual result:
--------------
End of the output is:
9990 3932160
9991 3932160
9992 3932160
9993 3932160
9994
So it crashes on one of the lines where array data is added.
Backtrace:
Thread 0 - System ID 5760
Entry point php+2d78
Create time 3/29/2010 12:23:21 AM
Time spent in user mode 0 Days 0:0:0.15
Time spent in kernel mode 0 Days 0:0:0.93
Function Arg 1 Arg 2 Arg 3 Source
php5ts!zobj_mark_grey+51 01b42eac 00c0fb14 00222718
php5ts!gc_mark_roots+76 00222718 00222718 01c6ac18
php5ts!gc_collect_cycles+64 00222718 057c820c 01b80e78
php5ts!gc_zval_possible_root+df 057c8190 00222718 00000000
php5ts!ZEND_ASSIGN_DIM_SPEC_VAR_CONST_HANDLER+72 00c0fc0c 00222718
00c0fea8
php5ts!execute+2fe 01b80e78 00222700 00000000
php5ts!zend_execute_scripts+f6 00000008 00222718 00000000
php5ts!php_execute_script+245 00c0fea8 00222718 00000000
php+1ec1 00000002 00223fc8 00222ba8
php+2e5b 00000000 00000000 7ffdb000
kernel32!ProcessIdToSessionId+209 00402d78 00000000 00000000
PHP5TS!ZOBJ_MARK_GREY+51In
php__PID__6396__Date__03_29_2010__Time_12_25_58AM__869__Second_Chance_Exception_C0000005.dmp
the assembly instruction at php5ts!zobj_mark_grey+51 in C:\Program
Files\PHP\php5ts.dll from The PHP Group has caused an access violation
exception (0xC0000005) when trying to read from memory location 0x00000014
on thread 0
--
Edit bug report at http://bugs.php.net/bug.php?id=51420&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51420&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51420&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51420&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51420&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51420&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51420&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51420&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51420&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51420&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51420&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51420&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51420&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51420&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51420&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51420&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51420&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51420&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51420&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51420&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51420&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51420&r=mysqlcfg
