PHP & Zend crashing Apache

Hello,

I've compiled PHP 5.3.3 with Zend.
Sometimes, my Apache 2.2.11 crashed and created a core dump (probably due to the 
Zend enabled in PHP).
OS : Solaris 10 10/09 s10x_u8wos_08a X86

Apache logfile:
---------------

[Mon Oct 25 13:11:47 2010] [notice] child pid 3485 exit signal Segmentation 
fault (11)
possible coredump in /var/opt/webstack/apache2/2.2/logs
and the Apache log file is full of the following message:
------------------------------------------------------
 
[Fri Oct 22 15:03:18 2010]  Script: 
'/var/opt/webstack/apache2/2.2/htdocs/oracleimage.php'
---------------------------------------
Zend/zend_language_scanner.l(697) : Block 0x0df81c14 status:
Beginning:      Cached
Freed (invalid)
    Start:      OK
      End:      OKPHP ERROR logfile:
---------------------
[25-Oct-2010 14:31:35] PHP Fatal error:  Allowed memory size of 134217728 bytes 
exhausted at /opt/src/php-5.3.3/Zend/zend_opcode.c:48 (tried to allocate 4864 
bytes) in /var/opt/webstack/apache2/2.2/htdocs/inc/Module.php(64) : eval()'d 
code on line 1

Here below is my Backtrace:
-----------------------------
gdb /opt/webstack/apache2/2.2/bin/httpd core
 
Core was generated by `/opt/webstack/apache2/2.2/bin/httpd -D 32bit -f
>/etc/opt/webstack/apache2/2.2/h'.
>Program terminated with signal 11, Segmentation fault.
>[New process 69021    ]
>[New process 134557    ]
>#0  0xfd614e6c in zend_mm_check_ptr (heap=0x81e0790, ptr=0x5a5a5a5a,
>silent=1,
>    __zend_filename=0xfdb16fb4 "/opt/src/php-5.3.3/Zend/zend_opcode.c",
>__zend_lineno=284, __zend_orig_filename=0x0, __zend_orig_lineno=0)
>    at /opt/src/php-5.3.3/Zend/zend_alloc.c:1347
>1347            if (p->info._size != ZEND_MM_NEXT_BLOCK(p)->info._prev) {
>(gdb)
>
>
 
(gdb) bt
>#0  0xfd614e6c in zend_mm_check_ptr (heap=0x81e0790, ptr=0x5a5a5a5a,
>silent=1,
>    __zend_filename=0xfdb16fb4 "/opt/src/php-5.3.3/Zend/zend_opcode.c",
>__zend_lineno=284, __zend_orig_filename=0x0, __zend_orig_lineno=0)
>    at /opt/src/php-5.3.3/Zend/zend_alloc.c:1347
>#1  0xfd616374 in _zend_mm_free_int (heap=0x81e0790, p=0x5a5a5a5a,
>__zend_filename=0xfdb16fb4 "/opt/src/php-5.3.3/Zend/zend_opcode.c",
>    __zend_lineno=284, __zend_orig_filename=0x0, __zend_orig_lineno=0)
>at /opt/src/php-5.3.3/Zend/zend_alloc.c:1983
>#2  0xfd617196 in _efree (ptr=0x5a5a5a5a, __zend_filename=0xfdb16fb4
>"/opt/src/php-5.3.3/Zend/zend_opcode.c", __zend_lineno=284,
>    __zend_orig_filename=0x0, __zend_orig_lineno=0) at
>/opt/src/php-5.3.3/Zend/zend_alloc.c:2351
>#3  0xfd62e6c5 in destroy_op_array (op_array=0x8e4a630) at
>/opt/src/php-5.3.3/Zend/zend_opcode.c:284
>#4  0xfd62e05b in destroy_zend_function (function=0x8e4a630) at
>/opt/src/php-5.3.3/Zend/zend_opcode.c:115
>#5  0xfd62e081 in zend_function_dtor (function=0x8e4a630) at
>/opt/src/php-5.3.3/Zend/zend_opcode.c:127
>#6  0xfd6468b3 in zend_hash_apply_deleter (ht=0x81e0a38, p=0x86f0e48) at
>/opt/src/php-5.3.3/Zend/zend_hash.c:611
>#7  0xfd646d9d in zend_hash_reverse_apply (ht=0x81e0a38,
>apply_func=0xfd627f12 <clean_non_persistent_function>)
>    at /opt/src/php-5.3.3/Zend/zend_hash.c:760
>#8  0xfd628991 in shutdown_executor () at
>/opt/src/php-5.3.3/Zend/zend_execute_API.c:309
>#9  0xfd6389a3 in zend_deactivate () at /opt/src/php-5.3.3/Zend/zend.c:890
>#10 0xfd5d01f3 in php_request_shutdown (dummy=0x0) at
>/opt/src/php-5.3.3/main/main.c:1633
>#11 0xfd6ed100 in php_apache_request_dtor (r=0x83d4510) at
>/opt/src/php-5.3.3/sapi/apache2handler/sapi_apache2.c:509
>#12 0xfd6ed861 in php_handler (r=0x83d4510) at
>/opt/src/php-5.3.3/sapi/apache2handler/sapi_apache2.c:681
>#13 0x0807c038 in ap_run_handler ()
>#14 0x0807c438 in ap_invoke_handler ()
>#15 0x08087a55 in ap_process_request ()
>#16 0x08085603 in ?? ()
>#17 0x083d4510 in ?? ()
>#18 0x00000004 in ?? ()
>#19 0x083d4510 in ?? ()
>#20 0xfed63b5a in proc_mutex_fcntl_release () from
>/opt/webstack/apache2/2.2/lib/libapr-1.so.0
>#21 0x0808207c in ap_run_process_connection ()
>#22 0x0808c36c in ?? ()
Is this a PHP bug, or my PHP is not correctly compiled and installed ?
Any help would be appreciated.

El Dancer