Using RPMS:
apache-devel-1.3.9-8
apache-1.3.9-8
    
MySQL-client-3.22.29-1
MySQL-devel-3.22.29-1
MySQL-shared-3.22.29-1
MySQL-3.22.29-1

Compiled PHP-3.0.14 using:

./configure --with-apxs=/usr/sbin/apxs --with-mysql
make
make install


Starting apache with the php module causes a segfault. It has something to do with the MySQL switch because if I don't configure --with-mysql the module loads fine.

I ran apache in single process mode and saved the core dump.
/usr/sbin/httpd -X

using GDB and looking at the stack trace I get.

(gdb) where
#0  0x40371954 in ?? () from /usr/lib/libz.so.1
#1  0x40165fa8 in __getservbyname_r (name=0x4030ba76 "mysql", 
    proto=0x4030bd10 "tcp", resbuf=0x4019115c, buffer=0x80aba00 "mysql", 
    buflen=1024, result=0xbfffd9fc) at ../nss/getXXbyYY_r.c:182
#2  0x40165e24 in getservbyname (name=0x4030ba76 "mysql", 
    proto=0x4030bd10 "tcp") at ../nss/getXXbyYY.c:123
#3  0x402dba8a in php3_minit_mysql (type=1, module_number=9)
    at functions/mysql.c:258
#4  0x402c0367 in module_startup_modules () at internal_functions.c:533
#5  0x402b9b0a in php3_module_startup () at main.c:1237
#6  0x402b779e in php3_create_dir () from /etc/httpd/modules/libphp3.so
#7  0x8053fd4 in ap_single_module_configure ()
#8  0x804f14d in ap_get_server_built ()
#9  0x8052f44 in ap_clear_module_list ()
#10 0x805350c in ap_handle_command ()
#11 0x8053558 in ap_srm_command_loop ()
#12 0x80538c7 in ap_process_resource_config ()
#13 0x8053f44 in ap_read_config ()
#14 0x805ae47 in ap_child_terminate ()
#15 0x805b4fb in main ()
#16 0x400b81eb in __libc_start_main (main=0x805b290 <main>, argc=2, 
    argv=0xbffffce4, init=0x804e684 <_init>, fini=0x80794ec <_fini>, 
    rtld_fini=0x4000a610 <_dl_fini>, stack_end=0xbffffcdc)
    at ../sysdeps/generic/libc-start.c:90


So it looks like the problem comes from "functions/mysql.c" line 258

if ((serv_ptr = getservbyname("mysql", "tcp")))

Let me know if there is anything I can do to help further.

- John