Description:
------------
Running PHP 5.0.2 / Apache 1.3.31 on SuSE Linux 9.0

Apache will seg fault on the below code every 6th request. Ie: I reload the page 5 times and it works fine, on the 6th time the page displays correctly, the APD trace file is ok, but the Apache child process will seg fault.


Reproduce code:
---------------
<?php

apd_set_pprof_trace();

echo 'hello';

?>


Expected result:
----------------
Apache should not seg fault

Actual result:
--------------
$> gdb /usr/sbin/httpd
(gdb) run -X
Starting program: /usr/sbin/httpd -X
[New Thread 16384 (LWP 22493)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 22493)]
0x40168567 in _int_free () from /lib/i686/libc.so.6
(gdb) bt
#0  0x40168567 in _int_free () from /lib/i686/libc.so.6
#1  0x4016722f in free () from /lib/i686/libc.so.6
#2  0x4037db1b in shutdown_memory_manager (silent=0, full_shutdown=0)
    at /root/php-5.0.2/Zend/zend_alloc.c:564
#3  0x4035af23 in php_request_shutdown (dummy=0x0)
    at /root/php-5.0.2/main/main.c:1223
#4  0x403c55aa in apache_php_module_main (r=0x8192154, display_source_mode=0)
    at /root/php-5.0.2/sapi/apache/sapi_apache.c:60
#5  0x403c606c in send_php (r=0x8192154, display_source_mode=0, filename=0x0)
    at /root/php-5.0.2/sapi/apache/mod_php5.c:622
#6  0x403c6233 in send_parsed_php (r=0x8192154)
    at /root/php-5.0.2/sapi/apache/mod_php5.c:637
#7  0x0806b423 in ap_invoke_handler ()
#8  0x08080469 in process_request_internal ()
#9  0x080804c8 in ap_process_request ()
#10 0x080774ec in child_main ()
#11 0x08077694 in make_child ()
#12 0x080777fa in startup_children ()
#13 0x08077eba in standalone_main ()
#14 0x080786d8 in main ()