Remote crash debugging fun

Next episode of the journey, I am now trying to catch a crash that happens in my new version during the test match (i guess it is a crash : i only see un abrupt termination of the error dump and no scond move played). I cannot reproduce it in my windows environment, so i have started a news dichotomy with stderr to try to find where the crash happens. But this is very tedious, and it seems the crash does not always happen at the same place, and i am not absolutely sure i can trust all logs to reach the error dumps before the crash, even with flush commands.

Is it possible to have info on the crashes (like crash dumps)? Any idea welcome ;)