FreeBSD/Alpha Debugging Help Needed

QA Team - I'm still trying to track down what's making 4.3.0-pre2 crash and burn on FreeBSD/Alpha (4.7-p1-RELEASE). When I run "make test", php will leave behind a core file "php.core", on a few of the tests, so I want to see which tests are making it core, and attempt to get a backtrace. However, the tests fly by so quickly that I'm not really able to figure out where they are coming from, and when I run a few of the failed tests by hand in gdb the core doesn't seem to occur. Is there anything I can do to make the "make test" procedure much more verbose, so I can figure out which tests it's failing on? Is anyone else out there testing 4.3.0-pre2 on a 64-bit platform? I'd like to know if this is FreeBSD specific, or if it happens on other 64-bit platforms... - Matt