Code review comment for lp:~afrantzis/mir/fix-1189770

I think there are too many serious problems with rethrowing. You lose the original stack trace and therefore critically lose the memory contents and access to the variables leading to the exception. So you can't debug your cores and bugs don't get fixed. And too many users continue to indefinitely experience the same crashes as we experienced in the public testing of XMir.

Plus, all theory aside, when I manually tested this branch no core files came out of crashes. And I think it's naive to assume you can manually craft a core file (of yourself) as reliably and useful as the kernel will produce for you.

But the real solution could be very simple... If we carefully convert unrecoverable fatal exceptions into clean abort()'s with clean core and stack dumping (bug 1285084), then a change like this one could be fine. But we're not there yet.