Description:
------------
We're not able to establish a pattern yet or the conditions by which httpd crashes.  We're working on getting this info.  We are currently using 5.5.17 version of PHP
httpd crashes with the stack trace as follows:

#0  0xf7144a48 in lex_scan () from /usr/lib/libphp5.so
#1  0xf7163a1f in zendlex () from /usr/lib/libphp5.so
#2  0xf713de47 in zendparse () from /usr/lib/libphp5.so
#3  0xf7143f71 in compile_file () from /usr/lib/libphp5.so
#4  0xf72197f0 in ?? () from /usr/lib/libphp5.so
#5  0xf71e0776 in execute_ex () from /usr/lib/libphp5.so
#6  0xf717a3a2 in zend_execute_scripts () from /usr/lib/libphp5.so
#7  0xf711a710 in php_execute_script () from /usr/lib/libphp5.so
#8  0xf721bee0 in ?? () from /usr/lib/libphp5.so
#9  0x0807c3ce in ap_run_handler ()
#10 0x0807c926 in ap_invoke_handler ()
#11 0x080915ba in ap_process_async_request ()
#12 0x080916ee in ap_process_request ()
#13 0x0808dc61 in ?? ()
#14 0x08085cde in ap_run_process_connection ()
#15 0xf67d5cb7 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#16 0xf67d5f66 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#17 0xf67d700a in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#18 0x08061e32 in ap_run_mpm ()
#19 0x0805b25b in main ()
(gdb) #0  0xf7144a48 in lex_scan () from /usr/lib/libphp5.so
(gdb) #1  0xf7163a1f in zendlex () from /usr/lib/libphp5.so
(gdb) #2  0xf713de47 in zendparse () from /usr/lib/libphp5.so
(gdb) #3  0xf7143f71 in compile_file () from /usr/lib/libphp5.so
(gdb) #4  0xf72197f0 in ?? () from /usr/lib/libphp5.so
(gdb) #5  0xf71e0776 in execute_ex () from /usr/lib/libphp5.so
(gdb) #6  0xf717a3a2 in zend_execute_scripts () from /usr/lib/libphp5.so
(gdb) #7  0xf711a710 in php_execute_script () from /usr/lib/libphp5.so
(gdb) #8  0xf721bee0 in ?? () from /usr/lib/libphp5.so
(gdb) #9  0x0807c3ce in ap_run_handler ()
(gdb) #10 0x0807c926 in ap_invoke_handler ()
(gdb) #11 0x080915ba in ap_process_async_request ()
(gdb) #12 0x080916ee in ap_process_request ()
(gdb) #13 0x0808dc61 in ?? ()
(gdb) #14 0x08085cde in ap_run_process_connection ()
(gdb) #15 0xf67d5cb7 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
(gdb) #16 0xf67d5f66 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
(gdb) #17 0xf67d700a in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
(gdb) #18 0x08061e32 in ap_run_mpm ()
(gdb) #19 0x0805b25b in main ()