I have compiled php to use apxs with apache. The module loads fine when you start apache, however, if you try to run httpd -t, apache segfaults. In order to restart apache, you have to run "apachectl stop" then "apachectl startssl". Running "apachectl restart" gives:

# apachectl restart
/usr/sbin/apachectl restart: configuration broken, ignoring restart
/usr/sbin/apachectl restart: (run 'apachectl configtest' for details)
# apachectl configtest
Syntax OK

I don't know if it's related, but if I put php as the first module loaded, apache won't even start. Nothing is logged to the error_log file, or displayed to the screen. apachectl thinks it's running though.


Apache is: 
Server Version: Apache/1.3.26 (Unix) PHP/4.2.1 FrontPage/4.0.4.3 mod_ssl/2.8.10 OpenSSL/0.9.6 mod_layout/3.2

php, frontpage, mod_ssl and mod_layout are all dynamic modules.


PHP is compiled with:
 './configure' '--with-apxs' '--with-solid=/var/database/solidSDK351' '--enable-debug=no' '--enable-track-vars=yes' '--with-mck=/usr/src/mck-3.2.0.4-linux' '--with-msql=/var/database/Minerva' '--with-mhash=/usr/src/mhash-0.5.2' '--with-mcrypt=/usr/local' '--with-mysql=/usr' '--with-imap=/usr' '--with-kerberos' '--with-xml' '--enable-wddx' '--with-openssl' '--with-gd=/usr' '--with-png-dir' '--with-jpeg-dir' '--with-zlib-dir' '--enable-sockets' '--with-imap-ssl' '--with-fdftk' '--enable-ftp'


# httpd -t
Syntax OK
Segmentation fault (core dumped)

This is the output of an strace of httpd -t:

munmap(0x40015000, 4096)                = 0
write(2, "Syntax OK\n", 10Syntax OK
)             = 10
munmap(0x4026a000, 2289872)             = 0
munmap(0x404a3000, 542516)              = 0
munmap(0x40528000, 32024)               = 0
munmap(0x40530000, 776452)              = 0
munmap(0x405ee000, 178084)              = 0
munmap(0x4061a000, 157044)              = 0
munmap(0x40641000, 332576)              = 0
munmap(0x40693000, 217828)              = 0
munmap(0x406c9000, 171080)              = 0
munmap(0x406f3000, 54596)               = 0
munmap(0x40701000, 126668)              = 0
munmap(0x40720000, 795396)              = 0
munmap(0x407e3000, 61020)               = 0
munmap(0x407f2000, 88136)               = 0
munmap(0x40808000, 103764)              = 0
munmap(0x40822000, 454172)              = 0
munmap(0x40891000, 111972)              = 0
munmap(0x4001a000, 8648)                = 0
munmap(0x408ad000, 74040)               = 0
munmap(0x408c0000, 160384)              = 0
munmap(0x408e8000, 54908)               = 0
munmap(0x408f6000, 872508)              = 0
munmap(0x40016000, 15852)               = 0
munmap(0x40188000, 924044)              = 0
munmap(0x4017f000, 36136)               = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++


And last, this is from gdb, when asking it to run httpd -t:

#gdb httpd
This GDB was configured as "i386-redhat-linux"...
(gdb) run -t
Starting program: /usr/sbin/httpd -t
Syntax OK
Cannot access memory at address 0x408bcaf4