In the bt file, is `list` output taken for the same corefile in the frame 0?
So 10 is `SIGBUS`, which typically appears due to unaligned memory access, but can be other reasons:
* https://en.wikipedia.org/wiki/Bus_error
Can you check on all core files that you got after enabling it per pid to see if they crash at the same point in code (is fame 0 line the same)?