Is there a way to force DNS lookups through a specific adapter's servers on OS X? I have an ethernet connection and a wifi connection, but I'd like all DNS requests to go through the ethernet connection's servers.
Every hour or so an Apache child process seg. faults on our web server. We are running a non-threaded PHP 5.2.17 Apache module with Apache prefork MPM. I have run httpd with a few core dumps, gdb and this .gdbinit file from php's github repo, typing this command into gdb for each:
dump_bt executor_globals.current_execute_data
With no experience with gdb or the inner-workings of the php interpreter, I can't make anything from the results.
core.22762
[0x53896ef0] () :-2118682552
[0x538977a0] () /Statement/Interface.php:113
[0x538978a0] /Zend/Db/Statement/Interface.php()
core.22791
[0x538977a0] () @:0
[0x538978a0] ()
core.5568
[0x53896ef0] () :2061035360
[0x538977a0] () :1767992432
[0x538978a0] ()
core.30384
[0x538977a0] () :0
[0x538978a0] ()
core.3091
[0x53896ef0] mysql_query():992424253
[0x538977a0] () ~:17
[0x538978a0] ()
(core.3091 also shows this after Program terminated with signal 11, Segmentation fault.)
#0 0x00002b6e7ad8d67d in zend_do_fcall_common_helper_SPEC (execute_data=0x7fff53896ef0) at /usr/src/debug/php-5.2.17/Zend/zend_vm_execute.h:217
217 EX_T(opline->result.u.var).var.fcall_returned_reference = return_reference;
Is there something else that I can type in gdb to get a better stack trace? Is there anything else that you do when debugging Apache segmentation faults?
Any help would be greatly appreciated, thanks.