Description:
------------
Apache crashes when running an oci8 script.

PHP is 5.2.4
Apache is 2.2.6
Oracle Client is: 10.2.0.3.0 (which is the latest patch version..)
OS: Oracle Enterprise Linux Enterprise Linux Server release 5 (Carthage)

env for oracle:
export ORACLE_HOME=/opt/oracle/product/10.2.0/client_1
export TNS_ADMIN=$ORACLE_HOME/network/admin
export NLS_LANG=german_germany.we8iso8859p15
export LC_ALL="de_DE"
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib

apache uses wwwrun user,which is member of dba group
oracle sw belongs to oracle:dba

php configure:
'./configure' '--with-apxs2=/usr/local/apache2/bin/apxs' '--with-mysql' '--with-oci8=/opt/oracle/product/10.2.0/client_1' '--enable-ftp' '--with-gettext' '--with-zlib' '--with-gd' '--enable-gd-native-ttf' '--with-ttf' '--with-mcrypt' '--with-curl' '--enable-pdo' '--with-pdo-oci=/opt/oracle/product/10.2.0/client_1' '--with-imap=/root/software/imap-2006k.DEV.SNAP-0711021517'

played around with:
;oci8.default_prefetch = 10
OR
oci8.default_prefetch = 10
OR
oci8.default_prefetch = 0
no change...

Reproduce code:
---------------
?php
        error_reporting(255);

        echo "connecting...\n";
        $db = oci_connect("gwtest","gwtest","ENTW");
        if(!$db)
                die("oci_connect error");

        $s = oci_parse($db,"select * from cat");
        oci_execute($s);
        oci_fetch_all($s,$res);

        print_r($res);

        oci_close($db);
?>


Expected result:
----------------
objects of schema gwtest

Actual result:
--------------
(gdb) run -X
Starting program: /usr/local/apache2/bin/httpd -X
[Thread debugging using libthread_db enabled]
[New Thread -1208908096 (LWP 17198)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208908096 (LWP 17198)]
0x0203414c in lxhcsn () from /opt/oracle/product/10.2.0/client_1/lib/libclntsh.so.10.1
(gdb) bt
#0  0x0203414c in lxhcsn () from /opt/oracle/product/10.2.0/client_1/lib/libclntsh.so.10.1
#1  0x018caad2 in kpcsnevget () from /opt/oracle/product/10.2.0/client_1/lib/libclntsh.so.10.1
#2  0x0184ff56 in OCINlsEnvironmentVariableGet ()
   from /opt/oracle/product/10.2.0/client_1/lib/libclntsh.so.10.1
#3  0x011e74c3 in php_oci_do_connect_ex (username=0x99f8090 "gwtest", username_len=6,
    password=0x99f80a0 "gwtest", password_len=6, new_password=0x0, new_password_len=0,
    dbname=0x99f80c8 "ENTW", dbname_len=4, charset=0x0, session_mode=0, persistent=0, exclusive=0)
    at /root/software/php-5.2.4/ext/oci8/oci8.c:1067
#4  0x011e8dc7 in php_oci_do_connect (ht=3, return_value=0x99f80d8, return_value_ptr=0x0, this_ptr=0x0,
    return_value_used=1, persistent=0, exclusive=0) at /root/software/php-5.2.4/ext/oci8/oci8.c:983
#5  0x011f41cd in zif_oci_connect (ht=3, return_value=0x99f80d8, return_value_ptr=0x0, this_ptr=0x0,
    return_value_used=1) at /root/software/php-5.2.4/ext/oci8/oci8_interface.c:1557
#6  0x0138aac8 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf855420)
    at /root/software/php-5.2.4/Zend/zend_vm_execute.h:200
#7  0x01389b1d in execute (op_array=0x99f73c8) at /root/software/php-5.2.4/Zend/zend_vm_execute.h:92
#8  0x0136c582 in zend_execute_scripts (type=8, retval=<value optimized out>, file_count=3)
    at /root/software/php-5.2.4/Zend/zend.c:1134
#9  0x0132cae3 in php_execute_script (primary_file=0xbf8576c8) at /root/software/php-5.2.4/main/main.c:1982
#10 0x013e49ac in php_handler (r=0x9a33f50) at /root/software/php-5.2.4/sapi/apache2handler/sapi_apache2.c:631
#11 0x08079c39 in ap_run_handler (r=0x9a33f50) at config.c:157
#12 0x0807cda7 in ap_invoke_handler (r=0x9a33f50) at config.c:372
#13 0x080a9608 in ap_process_request (r=0x9a33f50) at http_request.c:258
#14 0x080a690b in ap_process_http_connection (c=0x9a2dd78) at http_core.c:184
#15 0x08080b79 in ap_run_process_connection (c=0x9a2dd78) at connection.c:43
#16 0x080c49b0 in child_main (child_num_arg=<value optimized out>) at prefork.c:640
#17 0x080c4c13 in make_child (s=0x982b668, slot=0) at prefork.c:680
#18 0x080c59ec in ap_mpm_run (_pconf=0x98250a8, plog=0x98671b0, s=0x982b668) at prefork.c:956
#19 0x080679c5 in main (argc=159527072, argv=0x9a2bba0) at main.c:730
(gdb)