What version of Trinity are you using? I recommend you use the Trinity that comes with the latest beta version of DB, here. Anything else probably won't work so well.
A new official version of Trinity will be uploaded to the forums some time after 2.4 goes live, so until then I recommend you use the trinity from there.
Not really. Here's what: 2.4 is going live soon and we have a new trinity pretty much ready for it. So I suggest we just wait a little and see how the new trinity works for you.
I know it's not a solution, but I have no idea why your trinity is causing db to crash and hopefully it'll just go away with the new version.